Pro-Fluorescent Aryl Nitroxides: New Probes for Polymer Lifetime and Kinetics Research. Internal aryl rings present in novel probes developed for this project impart fluorescence which is efficiently and internally quenched by the presence of a paramagnetic nitroxide group. Scavenging of radicals by the nitroxide however "switches on" the fluorescence and this enables powerful new fluorescence-based detection levels for the technique of nitroxide free radical scavenging. Such sensitivity is a ....Pro-Fluorescent Aryl Nitroxides: New Probes for Polymer Lifetime and Kinetics Research. Internal aryl rings present in novel probes developed for this project impart fluorescence which is efficiently and internally quenched by the presence of a paramagnetic nitroxide group. Scavenging of radicals by the nitroxide however "switches on" the fluorescence and this enables powerful new fluorescence-based detection levels for the technique of nitroxide free radical scavenging. Such sensitivity is applicable to polymerization kinetics studies, as well as providing new means for the determination of materials lifetimes. The development of pro-fluorescent markers as indicators for polymer degradation would be a significant outcome for materials where component failure has a major negative impact.Read moreRead less
Novel Complex Architecture Polymers via a Combination of RAFT Chemistry and Pericyclic Reactions: Synthesis and Characterization. The project aims at advancing the synthetic limits and broadening the synthetic scope of living free radical polymerization and thus enhancing the library of polymer structures available for applications ranging from drug delivery to opto-electronics. Current material design for these applications is yet to reach its full potential through innovative synthetic approac ....Novel Complex Architecture Polymers via a Combination of RAFT Chemistry and Pericyclic Reactions: Synthesis and Characterization. The project aims at advancing the synthetic limits and broadening the synthetic scope of living free radical polymerization and thus enhancing the library of polymer structures available for applications ranging from drug delivery to opto-electronics. Current material design for these applications is yet to reach its full potential through innovative synthetic approaches. The proposal critically underpins and further advances Australia's leading position in both breakthrough science as well as advanced materials. Due to its significant scientific breadth and large coverage of both synthetic and physical aspects of polymer science, the project also provides a significant platform for research training at both honours and PhD level.Read moreRead less
New Fluorescent Probes to Elucidate Complex Oxidation Mechanisms. From medicine to manufacturing, polymers ("plastics") are a major component in the materials we use in our modern society, yet the manner by which they degrade and break down is often not well understood. Controlling the lifetime of polymers by either accelerating degradation on the one hand or preventing, or limiting, it on the other, will have significant benefits to society but this can only be achieved by reaching a thorough u ....New Fluorescent Probes to Elucidate Complex Oxidation Mechanisms. From medicine to manufacturing, polymers ("plastics") are a major component in the materials we use in our modern society, yet the manner by which they degrade and break down is often not well understood. Controlling the lifetime of polymers by either accelerating degradation on the one hand or preventing, or limiting, it on the other, will have significant benefits to society but this can only be achieved by reaching a thorough understanding of the degradation process. This project makes use of a unique, Australian-designed additive which stabilises polymeric materials, provides a marker for degradation levels and also provides information about the nature of the degradation processes occurring within polymers.Read moreRead less
Synthesis of oligomers in dense carbon dioxide. The aim of the project is to develop a novel technique for the synthesis of low molecular weight polymers (oligomers) using dense carbon dioxide as a polymerisation solvent. The use of elevated pressure is the major impediment to the commercialisation of such technology. The technique proposed in this project will enable oligomers to be produced at greatly reduced operating pressures and may lead to a more general procedure for conducting other t ....Synthesis of oligomers in dense carbon dioxide. The aim of the project is to develop a novel technique for the synthesis of low molecular weight polymers (oligomers) using dense carbon dioxide as a polymerisation solvent. The use of elevated pressure is the major impediment to the commercialisation of such technology. The technique proposed in this project will enable oligomers to be produced at greatly reduced operating pressures and may lead to a more general procedure for conducting other types of polymer synthesis in dense carbon dioxide.Read moreRead less
Structure-Property Relationships of Polymers with Controlled Architecture. Mechanical properties of a polymer (e.g., how elastic it is and how it dissipates energy when compressed) govern how well it performs as an adhesive, or its behaviour when melted and shaped into a consumer item. This project aims to relate molecular architecture to mechanical properties, using new techniques which permit the creation of polymers wherein each architectural characteristic is separately controlled. This has ....Structure-Property Relationships of Polymers with Controlled Architecture. Mechanical properties of a polymer (e.g., how elastic it is and how it dissipates energy when compressed) govern how well it performs as an adhesive, or its behaviour when melted and shaped into a consumer item. This project aims to relate molecular architecture to mechanical properties, using new techniques which permit the creation of polymers wherein each architectural characteristic is separately controlled. This has the potential to develop fundamental understanding for structure-property relations for the type of branched polymers that are in common use in industry and for which adequate models do not currently exist.Read moreRead less
Nanoporous Epoxy Thermosets via Microphase Separation of Block Copolymers. This project has many expected outcomes and benefits to Australia: (1) Development of the first technology to produce nanoporous epoxy thermosets (i.e. epoxy nanofoams) that may have many applications in microelectronics, optical waveguides and biological separations; (2) Providing impetus for an advanced materials synthesis and manufacturing industry for Australia and contributing to the Frontier Technologies National Re ....Nanoporous Epoxy Thermosets via Microphase Separation of Block Copolymers. This project has many expected outcomes and benefits to Australia: (1) Development of the first technology to produce nanoporous epoxy thermosets (i.e. epoxy nanofoams) that may have many applications in microelectronics, optical waveguides and biological separations; (2) Providing impetus for an advanced materials synthesis and manufacturing industry for Australia and contributing to the Frontier Technologies National Research Priority-Advanced Materials Priority Goals; (3) The development of new niche markets with these new materials and the new technologies, which is an excellent vehicle for Australia to move to a high-value added industrial portfolio that maximises return and promotes job growth.Read moreRead less
Accessing Chain Length Dependent Rate Coefficients in Reversible Addition Fragmentation Chain Transfer (RAFT) Polymerisations. The proposed project combines two exciting research areas, namely the chain length dependencies of kinetic coefficients and reversible addition fragmentation chain transfer (RAFT) polymerisations. The starting point of the project will be a novel technique recently invented by our team for termination rate measurement utilizing the RAFT process. Detailed knowledge of cha ....Accessing Chain Length Dependent Rate Coefficients in Reversible Addition Fragmentation Chain Transfer (RAFT) Polymerisations. The proposed project combines two exciting research areas, namely the chain length dependencies of kinetic coefficients and reversible addition fragmentation chain transfer (RAFT) polymerisations. The starting point of the project will be a novel technique recently invented by our team for termination rate measurement utilizing the RAFT process. Detailed knowledge of chain length dependent rate coefficients in both homo- and copolymerisations is essential from both an academic and industrial perspective, because polymerisation kinetics not only govern the reaction rates but influence directly the polymeric material properties.Read moreRead less
Blends of reactive plasticizers with thermoplastic composites for improved processing and properties. This proposal is directed at novel methods of enhancing the processibility, properties and applications of polymers and should have a significant economic impact on the $7 billion commodity polymer market for Australian polymer producers and polymer converters.
The project would also extend the research opportunities of students and researchers in the rapidly growing fields of nano-composites a ....Blends of reactive plasticizers with thermoplastic composites for improved processing and properties. This proposal is directed at novel methods of enhancing the processibility, properties and applications of polymers and should have a significant economic impact on the $7 billion commodity polymer market for Australian polymer producers and polymer converters.
The project would also extend the research opportunities of students and researchers in the rapidly growing fields of nano-composites and reactive polymer processing.Read moreRead less
Mechanisms in Catalytic Chain Transfer Polymerization. The aim of the proposed research is to gain more insight into the mechanisms underlying catalytic chain transfer polymerization, a relatively recent controlled radical polymerization technique which is finding an increasing number of industrial applications, especially in the paint and coatings industry. An improved understanding of the catalytic chain transfer process, of which some very important features are still poorly understood, will ....Mechanisms in Catalytic Chain Transfer Polymerization. The aim of the proposed research is to gain more insight into the mechanisms underlying catalytic chain transfer polymerization, a relatively recent controlled radical polymerization technique which is finding an increasing number of industrial applications, especially in the paint and coatings industry. An improved understanding of the catalytic chain transfer process, of which some very important features are still poorly understood, will ultimately lead to better catalyst design and improved process and product control. This in turn will lead to novel polymeric materials.Read moreRead less
The Synthesis and Evaluation of White Nano Particles that Reinforce the Mechanical Properties of Elastomers. This project will introduce admicellar polymerization technique to produce a bound polymer layer on the surface of fillers used for reinforcement of elastomers. The novel approach in this project will provide advanced material with excellent mechanical properties. Such composites can be used in various high performance elastomer applications such as rubber for tyres in automotive vehicles ....The Synthesis and Evaluation of White Nano Particles that Reinforce the Mechanical Properties of Elastomers. This project will introduce admicellar polymerization technique to produce a bound polymer layer on the surface of fillers used for reinforcement of elastomers. The novel approach in this project will provide advanced material with excellent mechanical properties. Such composites can be used in various high performance elastomer applications such as rubber for tyres in automotive vehicles. Products based on this new technology will produce significantly improved properties. The development of this new technology will not only advance polymer science, it will also provide great opportunities for new elastomer applications in a number of industries.Read moreRead less