ORCID Profile
0000-0002-5726-8775
Current Organisation
Kyoto University
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Research Topics
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Top 5 Research Topics
ANZSRC Field of Research (FoR)
Organic Green Chemistry | Functional Materials | Materials Engineering | Timber, Pulp and Paper | Industrial Chemistry | Industrial Chemistry | Other Chemical Sciences | Organic Chemistry | Biological And Medical Chemistry | Biotechnology Not Elsewhere Classified | Bioprocessing, Bioproduction and Bioproducts |
ANZSRC Socio-Economic Objective (SEO)
Organic Industrial Chemicals (excl. Resins, Rubber and Plastics) | Paper Products (incl. Coated Paper) | Management of Solid Waste from Plant Production | Human pharmaceutical products | Inorganic Industrial Chemicals | Manufactured products not elsewhere classified | Other
Related Links
Publications
Synthesis of a diamine cross-linker containing Diels–Alder adducts to produce self-healing thermosetting epoxy polymer from a widely used epoxy monomer
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C2PY20611K
Release kinetics of 6-mercaptopurine and 6-thioguanine from bioinspired core-crosslinked thymine functionalised polymeric micelles
Publisher: CSIRO Publishing
Date: 2013
DOI: 10.1071/CH13125
Abstract: A bioinspired core-bound polymeric micellar system based on hydrogen bonding and photo-crosslinking of thymine has been prepared from the hiphilic block copolymers, poly(vinylbenzylthymine)-block-poly(vinylbenzyltriethylammonium chloride). The chemical loading and controlled release potential of these micelles was investigated using two drugs, 6-mercaptopurine and 6-thioguanine. The release kinetics of drug-loaded polymeric micelles was determined by pressure ultrafiltration and the effects of hydrogen bonding, core-crosslinking, and core size on the loading capacity and release kinetics were analysed. The results demonstrate that drug release rates are affected by hydrogen bonding in the micelle core. Furthermore, these studies indicate that drug release rates can be controlled by changing the size of the core and by photo-crosslinking thymine groups in the core.
Improvement and tuning of the performance of light-healable polymers by variation of the monomer content
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8PY01203B
Abstract: High-performing crosslinked epoxy coatings that possess room temperature self-healing ability by the use of a newly synthesised dynamic diamine crosslinker.
Preparation of coumarin polymer grafted nanocellulose films to form high performance, photoresponsive barrier layers
Publisher: Wiley
Date: 03-07-2022
DOI: 10.1002/POL.20220248
Abstract: Hydrophobically modified cellulose is prepared in this research by conducting atom transfer radical polymerization (ATRP) of methacrylate substituted coumarin monomer on initiator grafted cellulose. The photocrosslinking of uniformly grafted coumarin on cellulose surface is applied to improve the water vapor barrier property of the film. The water vapor transmission rate (WVTR) of films prepared from modified cellulose with varying grafting density, grammage, and photocrosslinking time is studied. By increasing the amount of crosslinking within the grafted cellulose film, we succeeded in reducing WVTR. The WVTR is reduced from 160 to 20 g/m 2 /day using a sheet of 60 g/m 2 after crosslinking. The effect of grafting density on WVTR is also analyzed to observe that the higher the grafting density, lower the WVTR of the sheet both before and after crosslinking. Furthermore, free ATRP polymerization (without cellulose) and polymerization using a sacrificial initiator of the monomer are conducted to estimate the dispersity of the polymer on cellulose. The monomer, free polymer and cellulose grafted polymers are analyzed for the composition, thermal, morphology, photoresponsive behavior, and polymerization quantification using NMR, FTIR, UV–Vis, TGA DSC, GPC, SEM, ICP‐MS. It is concluded that the inter and intramolecular photo dimerization of coumarin molecules forms a hydrophobic crosslinked hyper network in the polymer sheet, which improves its barrier property.
Batch binding studies with thermo-responsive polymer grafted sepharose 6 fast flow sorbents under different temperature and protein loading conditions
Publisher: Elsevier BV
Date: 08-2020
One-pot treatment of cellulose using iron oxide catalysts to produce nanocellulose and water-soluble oxidised cellulose
Publisher: Elsevier BV
Date: 04-2022
DOI: 10.1016/J.CARBPOL.2021.119060
Abstract: This research explains the one-pot process of cellulose fibrillation to procure nanocellulose fibres and water-soluble oxidised cellulose using iron oxide catalysts with hydrogen peroxide. The process involved three stages. First, cellulose underwent depolymerisation to form nanocellulose fibres. Second, nanocellulose was oxidised to a water-soluble product, and the final stage was the complete decomposition. Factors such as the valency of ions in the crystal lattice of catalyst, its particle size, and reaction time influenced the treatment. By controlling these factors, either nanocellulose fibres or water-soluble oxidised cellulose with high yields of 83% and 38% produced, respectively. Nanocellulose had 73% crystallinity with DP (degree of polymerisation), 150, and the dimension of 30-110 nm thickness and 1-5 μm in length. The water-soluble product was oxidised with a carboxyl content of 2.9 mmol/g and DP, 25. This research gave an alternative method and eliminated the need for halogenated reagents, strong acids, and mechanical pretreatments.
Core-bound polymeric micellar system based on photocrosslinking of thymine
Publisher: Royal Society of Chemistry (RSC)
Date: 2007
DOI: 10.1039/B700686A
Abstract: Bioinspired core-bound polymer micellar aggregates were synthesized by photocrosslinking thymine-functionalized cores using short UV irradiation H-bonding between thymines in the core is also believed to increase micellar aggregate stability.
Light triggered self-healing of polyacrylate polymers crosslinked with 7-methacryloyoxycoumarin crosslinker
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7PY01385J
Abstract: Crosslinked acrylate polymers with coumarin crosslinker displayed a light (UV) only triggered self-healing property.
Linear Bio‐Based Water Soluble Aromatic Polymers from Syringic Acid, S Type Degradation Fragment from Lignin
Publisher: Wiley
Date: 09-01-2020
DOI: 10.1002/POL.20190070
Static and dynamic binding behavior of an IgG2 monoclonal antibody with several new mixed mode affinity adsorbents
Publisher: Elsevier BV
Date: 05-2016
Ultra-high molecular weight linear coordination polymers with terpyridine ligands
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9SC01115C
Abstract: This first report of ultra-high molecular weight ( kDa) linear coordination polymers demonstrates their use in agricultural spray drift control.
Development of bio-acrylic polymers from Cyrene™: Transforming a green solvent to a green polymer
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9PY00353C
Abstract: A bio-based methacrylic polymer derived from a green solvent, Cyrene™ through a green synthesis pathway with very high glass transition temperature, thermal stability and high reactivity.
Synthesis of ultra-high molecular weight ABA triblock copolymers via aqueous RAFT-mediated gel polymerisation, end group modification and chain coupling
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7PY01410D
Abstract: Novel ultra-high molecular weight ABA triblock copolymers were synthesised using aqueous RAFT polymerisation, end-group modification and chain coupling.
Strategic Approach Towards Plastic Waste Valorization: Challenges and Promising Chemical Upcycling Possibilities
Publisher: Wiley
Date: 08-07-2021
Abstract: Plastic waste, which is one of the major sources of pollution in the landfills and oceans, has raised global concern, primarily due to the huge production rate, high durability, and the lack of utilization of the available waste management techniques. Recycling methods are preferable to reduce the impact of plastic pollution to some extent. However, most of the recycling techniques are associated with different drawbacks, high cost and downgrading of product quality being among the notable ones. The sustainable option here is to upcycle the plastic waste to create high‐value materials to compensate for the cost of production. Several upcycling techniques are constantly being investigated and explored, which is currently the only economical option to resolve the plastic waste issue. This Review provides a comprehensive insight on the promising chemical routes available for upcycling of the most widely used plastic and mixed plastic wastes. The challenges inherent to these processes, the recent advances, and the significant role of the science and research community in resolving these issues are further emphasized.
Chemistries and capabilities of photo-formable and photoreversible crosslinked polymer networks
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9MH00217K
Abstract: We investigate how the application of photocuring has addressed unique challenges through inherent benefits of the methodology or inventive chemistries.
Effective Lignin Utilization Strategy: Major Depolymerization Technologies, Purification Process and Production of Valuable Material
Publisher: The Chemical Society of Japan
Date: 28-01-2021
DOI: 10.1246/CL.200873
Studies on the binding sites of IgG2 monoclonal antibodies recognized by terpyridine-based affinity ligands
Publisher: Wiley
Date: 04-02-2016
DOI: 10.1002/JMR.2535
Abstract: This investigation has examined the origin of the molecular recognition associated with the interaction of monoclonal IgG2's with terpyridine-based ligands immobilized onto agarose-derived chromatographic adsorbents. Isothermal titration calorimetric (ITC) methods have been employed to acquire thermodynamic data associated with the IgG2-ligand binding. These ITC investigations have documented that different enthalpic and entropic processes are involved depending on the nature of the chemical substituents in the core structure of the terpyridinyl moiety. In addition, molecular docking studies have been carried out with IgG2 structures with the objective to identify possible ligand binding sites and key interacting amino acid residues. These molecular docking experiments with the different terpyridine-based ligands have shown that all of the examined ligands can potentially undergo favorable interactions with a site located within the Fab region of the IgG2. However, another favorable binding site was also identified from the docking poses to exist within the Fc region of the IgG2 for some, but not all, of the ligands studied. These investigations have provided a basis to elucidate the unique binding properties and chromatographic behaviors shown by several substituted terpyridine ligands in their interaction with IgGs of different isotype. Copyright © 2016 John Wiley & Sons, Ltd.
Synthesis of substituted terpyridine ligands for use in protein purification
Publisher: Elsevier BV
Date: 11-2014
Sustainable Light‐Stimulated Synthesis of Cross‐Linked Polymer Microparticles
Publisher: Wiley
Date: 22-04-2022
Abstract: The increasing demand for crosslinked polymer microparticles (PMPs) in advanced applications requires the development of new sustainable methods which can reduce the impact of the polymerization process on the environment. This research reports a new environmentally‐friendly light‐assisted polymerization method for the synthesis of highly cross‐linked polymer microspheres by combining light‐induced [2+2] cycloadditions with dispersion polymerization. Using naturally‐occurring coumarin as reactive moieties, this method allows the synthesis of highly crosslinked PMPs in the presence of UV light at room temperature without initiator. The effect of the reaction parameters such as monomer concentration, stabilizer and reaction time on the particle size and yield are investigated using a number of techniques including Fourier transform infrared spectroscopy, solid‐state 13 C nuclear magnetic resonance spectroscopy, and scanning electron microscopy. The results show the formation of highly crosslinked porous microspheres which demonstrate good thermal stability.
Effect of Organic Modification on Multiwalled Carbon Nanotube Dispersions in Highly Concentrated Emulsions
Publisher: American Chemical Society (ACS)
Date: 11-04-2019
Preparation and electrochromatographic characterization of new chiral β-cyclodextrin poly(acrylamidopropyl) porous layer open tubular capillary columns
Publisher: Elsevier BV
Date: 09-2014
DOI: 10.1016/J.CHROMA.2014.06.067
Abstract: A novel chiral stationary phase consisting of an amidopropyltrimethylammonium chloride inylbenzene (APAT-DVB) polymer containing the chiral selector heptakis(2,3-di-O-acetyl-6-O-sulfo)-β-cyclodextrin (HSβCD) has been employed in porous layer open tubular (PLOT) capillary column format with various conditions evaluated to optimize the polymerization and chiral selector immobilization. Scanning electron microscopy demonstrated a near homogenous longitudinal open path in the column with a polymer film of uniform thickness. IR spectroscopy characterized the functional groups of the polymer and energy-dispersive X-ray spectroscopy provided further evidence of the successful polymer modification with HSβCD. Optimum electrochromatographic separation conditions were elaborated with respect to organic solvent content and pH of the background electrolyte. Colum-to-column and long-term reproducibility was excellent. The effectiveness of the new capillary column was demonstrated with the successful separation of d-and l-aspartic acid, d- and l-tyrosine and d-and l-lysine.
Cellulose-Derived Levoglucosenone, a Great Versatile Chemical Platform for the Production of Renewable Monomers and Polymers
Publisher: American Chemical Society
Date: 2020
Chemical fingerprinting of polyvinyl acetate and polycarbonate using electron energy-loss spectroscopy
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0PY00771D
Abstract: This work demonstrates that the high sensitivity of EELS can be used to identify the changes in the chemical structure of polymeric materials.
Confined polymerisation of bis-thyminyl monomers within nanoreactors: towards molecular weight control
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0PY00523A
Abstract: Controlling polymer molecular weight by topochemical polymerisation inside nanoreactors.
Core-shell thymine containing polymeric micelle system: study of controlled release of riboflavin
Publisher: Informa UK Limited
Date: 06-2009
Heat‐ and Light‐Responsive Materials Through Pairing Dynamic Thiol–Michael and Coumarin Chemistry
Publisher: Wiley
Date: 06-05-2021
Abstract: Covalent adaptable networks (CANs) based on the thiol–Michael (TM) linkages can be thermal and pH responsive. Here, a new vinyl‐sulfone‐based thiol–Michael crosslinker is synthesized and incorporated into acrylate‐based CANs to achieve stable materials with dynamic properties. Because of the reversible TM linkages, excellent temperature‐responsive re‐healing and malleability properties are achieved. In addition, for the first time, a photoresponsive coumarin moiety is incorporated with TM‐based CANs to introduce light‐mediated reconfigureability and postpolymerization crosslinking. Overall, these materials can be on demand dynamic in response to heat and light but can retain mechanical stability at ambient condition.
Dynamic adsorption/desorption of proteins with thermo-responsive polymer grafted sepharose fast flow sorbents
Publisher: Elsevier BV
Date: 03-2021
Poly(N-4-vinylbenzyl-1,4,7-triazacyclononane) copper complex grafted solid catalyst for oxidative polymerization of 2,6-dimethylphenol
Publisher: MDPI AG
Date: 26-01-2016
Light‐Switchable Self‐Healing Dynamic Linear Polymers: Reversible Cycloaddition Reactions of Thymine‐Containing Units
Publisher: Wiley
Date: 07-03-2019
Abstract: A dynamic linear polymer was formed by the [2π+2π] reversible cycloaddition reaction of a thymine-based monomer under topochemical conditions and was used in self-healing applications. The reversible polymerisation of the thymine monomer was confirmed by UV and GPC analysis. Irradiation at 302 nm resulted in polymerisation of the monomer, and irradiation with wavelengths lower than 240 nm resulted in depolymerisation and the production of oligomeric units. This leads to a reduction in the glass transition temperature, and promoted healing of surface scratches due to the increased chain mobility. The self-healing ability of scratched s les was assessed based on the visual disappearance of the damage. In addition, the mechanical properties of the polymer before and after healing were found to be similar.
UV-reversible chain extendable polymers from thymine functionalized telechelic polymer chains
Publisher: Wiley
Date: 23-06-2014
DOI: 10.1002/POLA.27282
Are lignin-derived monomers and polymers truly sustainable? An in-depth green metrics calculations approach
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D0GC03982A
Abstract: The green aspects of the lignin-derived monomers and polymers have been analysed. A different viewpoint has been provided to encourage researchers to use simple and yet effective green metrics calculations in the development of sustainable syntheses.
Investigation of the thermal self-healing mechanism in a cross-linked epoxy system
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3RA43746A
Oxidized Lignin Depolymerization using Formate Ionic Liquid as Catalyst and Solvent
Publisher: Wiley
Date: 04-07-2017
Bioinspired core-crosslinked micelles from thymine-functionalized amphiphilic block copolymers: Hydrogen bonding and photo-crosslinking study
Publisher: Wiley
Date: 12-07-2011
DOI: 10.1002/POLA.24853
Abstract: Bioinspired core‐bound polymeric micelles, based on hydrogen bonding and photo‐crosslinking, of thymine have been prepared from poly(vinylbenzylthymine)‐ b ‐poly(vinylbenzyltriethylammonium chloride). The hiphilic block copolymer was synthesized by 2,2‐tetramethylpiperidin‐1‐oxyl‐mediated living radical polymerization in water/ethylene glycol solution. Micelle characterization and critical micelle concentration measurements demonstrated that the hydrogen bonding of the attached thymine units stabilizes the micelles. Further, core‐crosslinked polymeric micelles were formed by ultraviolet (UV) radiation showing that the stability of the micelle could be controlled by the UV crosslinking of the attached thymines. © 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2011
Application of pH-responsive poly(2-dimethyl-aminoethylmethacrylate)-block-poly(acrylic acid) coatings for the open-tubular capillary electrochromatographic analysis of acidic and basic compounds
Publisher: Elsevier BV
Date: 04-2016
DOI: 10.1016/J.ACA.2016.02.045
Abstract: A new type of stimuli-responsive polymeric (SRP) coating has been prepared for use in open tubular capillary electrochromatography (OT-CEC), by grafting poly(2-dimethylaminoethylmethacrylate)-block-poly(acrylic acid) (PDMAEMA-b-PAA) as a Y-shaped block copolymer with two dissimilar chain compositions onto the inner walls of aminopropyl-modified silica capillaries. The grafting process introduced weakly charged functional groups from the PAA and PDMAEMA, enabling the generation of electroendosmotic flow with magnitude and direction adjustable by changing the pH of the running buffer electrolyte. This stimuli-responsive PDMAEMA-b-PAA block copolymer was found to provide excellent resolution of various acidic and basic compounds, leading to efficient analyte separation. When operated in the OT-CEC mode, separation selectivities could be readily manipulated via differential contributions from chromatographic and electrophoretic mechanisms, simply by changing the pH or the ionic strength of the running buffer electrolyte.
Photo-switchable membranes constructed from graphene oxide/star-PDMS nanocomposites for gas permeation control
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1TA05947E
Abstract: The article presents the first light-responsive, ultra-thin membrane that utilises graphene-based nanosheets as a nanofiller. By using a star-PDMS as the polymer phase, the membrane exhibited efficient and continuous permeance regulation by UV light.
In situ fabrication of photo-responsive PVA composites enabled by doping with coumarin-derived nanoparticles
Publisher: Elsevier BV
Date: 12-2023
Chemical Fingerprinting of Polymers Using Electron Energy-Loss Spectroscopy
Publisher: American Chemical Society (ACS)
Date: 13-09-2021
Lignin depolymerization with phenol via redistribution mechanism in ionic liquids
Publisher: American Chemical Society (ACS)
Date: 28-07-2014
DOI: 10.1021/SC5003424
Ultra-fast aqueous polymerisation of acrylamides by high power visible light direct photoactivation RAFT polymerisation
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C7PY01752A
Abstract: The effect of visible LED power ( λ max = 402 nm, 451 nm) on kinetics and control of direct photoactivation RAFT polymerisations of acrylamide and dimethylacrylamide are investigated.
Depolymerization of poly(2,6-dimethyl-1,4-phenylene oxide) in green solvents: water and ionic liquid
Publisher: CSIRO Publishing
Date: 2013
DOI: 10.1071/CH12191
Abstract: The depolymerization of poly(2,6-dimethyl-1,4-phenyleneoxide) (PPO) was accomplished by employing 4-tert-butyl-2,6-dimethylphenol (TBDMP) and 2,6-dimethylphenol (DMP) under oxidative conditions in green solvents: water and ionic liquid. PPO depolymerized to oligomeric products in a faster process within 5 min with TBDMP and within 1 min with DMP in water. In addition to water, an ionic liquid mixture containing the 1-ethyl-3-methylimidazolium cation [C2mim] and a mixture of alkylbenzenesulfonate with xylene sulfonate anion [ABS] was used for the depolymerization of PPO. Depolymerization was successfully achieved in [C2mim][ABS] with TBDMP in a slower process within 3 h.
CuSO4/H2O2-Catalyzed Lignin Depolymerization under the Irradiation of Microwaves
Publisher: American Chemical Society (ACS)
Date: 04-09-2018
Thymine‐based, water‐soluble phototerpolymers: Their preparation and synthesis
Publisher: Wiley
Date: 15-02-2007
DOI: 10.1002/POLA.21901
Recent developments in chemical degradation of lignin: catalytic oxidation and ionic liquids
Publisher: Elsevier BV
Date: 11-2016
Chemical depolymerization of lignin involving the redistribution mechanism with phenols and repolymerization of depolymerized products
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C3GC41708E
Renewable Green Platform Chemicals for Polymers
Publisher: MDPI AG
Date: 28-02-2017
Photoreversible Smart Polymers Based on 2π + 2π Cycloaddition Reactions: Nanofilms to Self-Healing Films
Publisher: American Chemical Society (ACS)
Date: 13-03-2019
Photo-reversible dimerisation reactions and their applications in polymeric systems
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C3PY01234D
Multi-cycle reversible control of gas permeability in thin film composite membranes via efficient UV-induced reactions
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D0CC08238D
Abstract: This communication reports the use of light to reversibly constrict or ease the flow of oxygen through a very thin polymer coating. This is achievable by reversibly changing the polymer structure from a dense and rigid film to a loose and soft film.
Design, synthesis and application of a new class of stimuli-responsive separation materials
Publisher: Elsevier BV
Date: 04-2017
DOI: 10.1016/J.ACA.2017.01.061
Abstract: A new class of efficient stationary phase has been investigated for use in the liquid chromatographic separation of low molecular weight analytes and high molecular weight biomolecules, based on the application of immobilised stimuli-responsive polymers (SRPs). To this end, two polymeric units, namely poly(2-dimethylaminoethyl methacrylate) (PDMAEMA) and poly(acrylic acid) (PAA) were tethered to a triazine core. The derived poly(2-dimethyl-aminoethyl methacrylate)-block-poly(acrylic acid) (PDMAEMA-b-PAA), as a diblock co-polymer, was then immobilised onto the surface of porous silica particles. The performance of this microparticulate adsorbent was evaluated under various temperature, ionic strength and/or pH conditions in packed columns in a high-performance liquid chromatography (HPLC) format. Baseline separations of a variety of low molecular weight analytes were achieved at different temperatures with this SRP-based adsorbent using 10 mM sodium phosphate buffer, pH 6.0, as the mobile phase. Moreover, when the ionic strength of the mobile phase was increased to 40 mM sodium phosphate buffer, pH 6.0, similar temperature changes resulted in further increases in resolution for the hydrophobic analytes. In addition, changes in the pH of the mobile phase from pH 6.0 to pH 8.0 led to significant changes in selectivity of the analytes, including reversal in their elution orders. Upon increasing the temperature, the retention times of all analytes decreased but without loss of resolution. These findings can be attributed to the consequence of the immobilised copolymer undergoing a phase transition at its lower critical solution temperature (LCST), which leads to changes in its solvated structure, including how the electrostatic, hydrophilic and hydrophobic regions/domains of the copolymer are exposed to the bulk mobile phase. Thermodynamic data were indicative of a temperature-related re-organisation of the structure of the immobilised PDMAEMA-b-PAA stationary phase with exothermic binding of the analytes occurring at temperatures below the lower critical solution temperature (LCST). In this manner changes in the system temperature could directly be used to manipulate the adsorption and desorption behaviour of these analytes with this stimuli-responsive, polymer-modified porous silica stationary phase. Additional studies with several proteins further documented the versatility of these stimuli-responsive separation materials. The results indicated that these separations could be tuned by variation of the temperature with fully aqueous mobile phases at specific ionic strength and pH values, without the need to use an organic solvent as a component in the mobile phase.
Synthesis of Bioacrylic Polymers from Dihydro-5-hydroxyl furan-2-one (2H-HBO) by Free and Controlled Radical Polymerization
Publisher: American Chemical Society (ACS)
Date: 20-02-2018
Effect of the N-based ligands in copper complexes for depolymerisation of lignin
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C5NJ03152D
Abstract: Several organic soluble N-based ligands and their copper complexes were firstly investigated as catalysts to depolymerise organosolv lignin in the organic solvent, dimethylformamide (DMF) and an ionic liquid (1-ethyl-3-methylimidazolium xylenesulfonate, [emim][ABS]).
Enhanced Flocculation Efficiency in a High-Ionic-Strength Environment by the Aid of Anionic ABA Triblock Copolymers
Publisher: American Chemical Society (ACS)
Date: 23-01-2020
DOI: 10.1021/ACS.LANGMUIR.9B03689
Abstract: The flocculation efficiency of polyelectrolytes in a high-ionic-strength environment is often affected and reduced due to shielding of the active ionizable functional groups, as well as changes in the surface chemistry of the solid slurry. To address this problem, a series of well-defined novel ABA triblock copolymers were employed for the flocculation of high-ionic-strength kaolin slurries at three different Ca
Immobilized Horseradish Peroxidase (I-HRP) as Biocatalyst for Oxidative Polymerization of 2,6-Dimethylphenol
Publisher: American Chemical Society (ACS)
Date: 02-07-2014
DOI: 10.1021/SC500392K
Cleavage of macromolecular RAFT chain transfer agents by sodium azide during characterization by aqueous GPC
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7PY00682A
Abstract: Accurate and reliable analysis of polymers by GPC is vital in the field of controlled radical polymerisation.
Polymeric Drift Control Adjuvants for Agricultural Spraying
Publisher: Wiley
Date: 04-07-2016
Bio-based photo-reversible self-healing polymer designed from lignin
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1GC02957F
Abstract: Through structure–activity relationship study and density functional theory, this research designs novel lignin-based photo-responsive crosslinkable polymer with engineerable self-healing properties by utilizing a green photo-polymerization method.
Synthesis of Lignin-based Phenol Terminated Hyperbranched Polymer
Publisher: MDPI AG
Date: 16-10-2019
DOI: 10.3390/MOLECULES24203717
Abstract: In this work, we proved the efficient synthesis of a bio-based hyper-branched polyphenol from a modified lignin degradation fragment. Protocatechuic acid was readily obtained from vanillin, a lignin degradation product, via alkaline conditions, and further polymerised to yield high molecular weight hyperbranched phenol terminated polyesters. Vanillic acid was also subjected to similar polymerisation conditions in order to compare polymerisation kinetics and differences between linear and hyperbranched polymers. Overall, protocatechuic acid was faster to polymerise and more thermostable with a degradation temperature well above linear vanillic acid polyester. Both polymers exhibited important radical scavenging activity (RSA) compared to commercial antioxidant and present tremendous potential for antioxidant applications.
Light-Healable Epoxy Polymer Networks via Anthracene Dimer Scission of Diamine Crosslinker
Publisher: American Chemical Society (ACS)
Date: 07-05-2019
Abstract: Two anthracene-based diamine crosslinkers were used to cure a range of commercially available monomers to produce four highly photoreversible crosslinked epoxy polymers. Through careful selection of the epoxy monomers used, the properties of the resultant polymer networks were varied to create a coating material that possessed room-temperature light-stimulated healing. Of the four coatings created, the best healing performance was exhibited by the two most flexible systems, both of these also exhibited the thermal and mechanical performance necessary for coatings. By using anthracene, the utilization of a wide range of wavelengths in the healing process is possible, which in applications such as industrial coatings would be of significant benefit.
Synthesis of UHMW Star-Shaped AB Block Copolymers and Their Flocculation Efficiency in High-Ionic-Strength Environments
Publisher: American Chemical Society (ACS)
Date: 02-10-2019
Nonionic Water-Soluble and Cytocompatible Poly(amide acrylate)s
Publisher: American Chemical Society (ACS)
Date: 06-01-2020
Photocuring of 4-arm coumarin-functionalised monomers to form highly photoreversible crosslinked epoxy coatings
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C8PY01767K
Abstract: Highly photoreversible photocurable crosslinked epoxy coatings that can heal substantial surface damage were formed by the synthesis of unique monomers.
The interplay between hydrogen bonding and π-π stacking interactions in the crystal packing of N1-thyminyl derivatives, and implications for the photo-chemical [2π + 2π]-cycloaddition of thyminyl comp
Publisher: Springer Science and Business Media LLC
Date: 12-2012
DOI: 10.1039/C2PP25228G
Abstract: The solid-state photo-chemical dimerisation of thyminyl derivatives occurs when two thyminyl units are aligned in such a way that the olefinic moieties are separated by a distance of less than 4.2 Å. When irradiated with >270 nm UV, the thyminyl olefinic groups undergo [2π + 2π]-cycloaddition to form a dimeric cyclobutane derivative. However, the design and execution of [2π + 2π]-cycloaddition reactions can be challenging due to the requirement to produce molecular crystals with the necessary olefinic alignment. In this investigation, the crystallographic and solid-state photo-chemical reactions of six N1-thyminyl derivatives are studied. Only one derivative, thyminyl propanamide (), was found to undergo [2π + 2π]-cycloaddition in the crystalline state. As such, quantum chemical methods were employed to study the photo-chemical transition states of the derivatives, as well as the strengths of typical intermolecular interactions that were observed in their crystal structures (such as π-π stacking between the thyminyl rings, Watson and Crick style hydrogen bonding and hydrogen bonding between functional groups of N1 substituents). These results were used to rationalise the solid-state photo-reactivity of more complex bis-thyminyl monomers.
Photo-responsive lignin fragment-based polymers as switchable adhesives
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D2PY01474B
Abstract: A photo-reversible and reusable polymer adhesive was designed and synthesized from bio-resources. Six unique monomers were evaluated via structure–property analysis, and the best polymer adhesive performance was optimized using statistical methods.
Importance of Mediators for Lignin Degradation by Fungal Laccase
Publisher: American Chemical Society (ACS)
Date: 27-06-2018
Linear Coordination Polymer Synthesis from Bis‐Catechol Functionalized RAFT Polymers
Publisher: Wiley
Date: 05-08-2020
Synthesis, properties and performance of organic polymers employed in flocculation applications
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C5PY01572C
Abstract: Recent developments on the synthesis and flocculation efficiency of several non-ionic, cationic, anionic and hoteric polymers are presented and summarised.
Pendant cyclic carbonate‐polymer/Na‐smectite nanocomposites via in situ intercalative polymerization and solution intercalation
Publisher: Wiley
Date: 06-04-2016
DOI: 10.1002/POLA.28117
Eco-Friendly Photoreversible Adhesives Derived from Coumarin-Functionalized Epoxy Soybean Oil
Publisher: American Chemical Society (ACS)
Date: 05-06-2023
Characterisation of the thermal self-healing of a high crosslink density epoxy thermoset
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5NJ00066A
Abstract: Different properties of a new self-healing TGAP-based epoxy polymer were studied and the influence of the crosslink density is demonstrated.
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