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
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0211003
Funder
Australian Research Council
Funding Amount
$125,000.00
Summary
A Facility for Probing Nanostructure in Polymers. The properties of a polymer are only partly determined by its molecular structure. It is now clear that the organization of molecular structure and phase morphology on a nano-scale has an equally important role in determining material behaviour. Increasingly this can be manipulated by judicious choice of formulation and processing variables. The polymer Nano-Structure Facility will bring together Australia's principal polymer experts in this a ....A Facility for Probing Nanostructure in Polymers. The properties of a polymer are only partly determined by its molecular structure. It is now clear that the organization of molecular structure and phase morphology on a nano-scale has an equally important role in determining material behaviour. Increasingly this can be manipulated by judicious choice of formulation and processing variables. The polymer Nano-Structure Facility will bring together Australia's principal polymer experts in this area of structure-property relations and provide them with shared access to the appropriate, modern analytical tools required to probe the nano-structure of such new materials with enhanced properties.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0668517
Funder
Australian Research Council
Funding Amount
$220,000.00
Summary
Hyphenated techniques in polymer science and engineering. The collaborator's research capabilities will be greatly enhanced because the equipment will allow simultaneous measurements of various properties which can provide much more information than sequential experiments. Students will be able to undertake research with state-of-the-art equipment which will enhance their research careers and employment prospects. The resulting information will be invaluable to the development of polymer blends ....Hyphenated techniques in polymer science and engineering. The collaborator's research capabilities will be greatly enhanced because the equipment will allow simultaneous measurements of various properties which can provide much more information than sequential experiments. Students will be able to undertake research with state-of-the-art equipment which will enhance their research careers and employment prospects. The resulting information will be invaluable to the development of polymer blends with optimized morphology and mechanical properties; improved polymer processing techniques linked to how the structure and orientation develops; the development of new materials, including novel human tissue implants, from studies of the rheology and phase structure of a polymer during photopolymerization.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