ORCID Profile
0000-0002-8077-6735
Current Organisations
University of Queensland
,
Queensland University of Technology
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Publisher: Walter de Gruyter GmbH
Date: 11-2014
Abstract: Polysaccharides are a natural and renewable feed stock for synthesizing high performance macromolecular materials. However, their structure does not allow reaching all properties required for specific applications and chemical modifications are necessary to reach such objectives. Despite the use of natural polymers, the chemistry and processes employed are not environment-friendly due to the nature of chemicals, solvents or because the conventional chemical process are energy-consuming. On the other hand, microwave assisted processes were developed in organic chemistry since the 1980s and more recently for polymer chemistry (polymer formation and modification). Within the chemistry of natural polymers, the use of microwave irradiation has been exploited in the past two decades to alleviate limitations in the synthesis of graft modified polysaccharide materials. Microwave heating is described as more homogeneous, selective and efficient as compared to conventional heating resulting in faster reactions with fewer or no side products as ex le. Different results reported within the recent literature will be discussed considering the role of microwave irradiation and its consequence on the reaction parameters and properties of final materials. Grafting of polysaccharides, specific modification of polysaccharides or fibers particularly for preparing smart textiles or medical products as well as reactions of polysaccharides to valuable bio-platform molecule will be discussed.
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8PY00748A
Abstract: The study investigates the thermal stability of ligation points resulting from photochemically induced Diels–Alder reactions within soft matter materials on the molecular level.
Publisher: Elsevier BV
Date: 3
Publisher: Wiley
Date: 10-2015
Publisher: Elsevier BV
Date: 02-2015
DOI: 10.1016/J.CARBPOL.2014.04.083
Abstract: Conventional heating and microwave irradiation have been compared for the synthesis of chitosans grafted with alkyl chains. Reaction time (1-60 min), temperature (25 and 40 °C) and chitosan molar mass have been studied onto the yield of alkylation. The irradiation mode has been scrupulously controlled to highlight the effect of the use of microwaves. The chemical structure of modified polymers (degree of alkylation) is determined from NMR. In relation to the rheological behavior and surface tension measurements, the evolution of hydrophobic interactions is studied as a function of the yield of alkylation. A maximum of intrinsic viscosity and hydrodynamic diameter was observed for a degree of alkylation of around 10%. All the results tend to prove that microwave assisted synthesis is a powerful method to obtain modified chitosan under extremely low reaction time without any degradation and/or property modifications.
Publisher: Wiley
Date: 26-03-2015
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7PY01255A
Abstract: The synthesis of poly(2-ethyl-2-oxazoline) has been developed in an ionic liquid and performed with microwave-assisted or droplet-based millifluidic processes.
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1CC00124H
Abstract: Herein, we incorporate photosensitive ortho -Nitrobenzyl units into polyurethanes to achieve controllable photodegradability. We performed their photolysis in solution and thin films which can inform the design of degradable adhesives.
Publisher: American Chemical Society (ACS)
Date: 03-01-2019
Publisher: American Chemical Society (ACS)
Date: 25-03-2021
DOI: 10.1021/ACSMACROLETT.1C00057
Abstract: Herein, we demonstrate that the photochemical cleavage of linear polymers containing a midchain photocleavable moiety strongly depends on the chain length. Based on an
Publisher: Wiley
Date: 10-09-2018
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0PY01119C
Abstract: Herein, we introduce a scalable photopolyaddition polymerisations using the pyrene-chalcone [2+2]-cycloaddition and monitor the photodepolymerisation process via an online photoflow – electrospray ionisation mass spectrometry setup.
Publisher: Elsevier BV
Date: 03-2017
Publisher: Wiley
Date: 22-05-2018
No related grants have been discovered for Charlotte Petit.