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: LE0346891
Funder
Australian Research Council
Funding Amount
$200,000.00
Summary
Characterization facilities for new macromolecular architectures. The proposed facility is essential for characterization of the new polymeric architectures such as copolymers for tissue engineering, nanogels for automotive paints and biodegradable polymeric packaging. The facilities include characterizations of (1) molar mass and molecular sizes of novel polymer architectures (MU); (2) viscoelastic mechanical properties of tensile, bending, bulk and flow (RMIT); and (3) thermal properties of c ....Characterization facilities for new macromolecular architectures. The proposed facility is essential for characterization of the new polymeric architectures such as copolymers for tissue engineering, nanogels for automotive paints and biodegradable polymeric packaging. The facilities include characterizations of (1) molar mass and molecular sizes of novel polymer architectures (MU); (2) viscoelastic mechanical properties of tensile, bending, bulk and flow (RMIT); and (3) thermal properties of compositions (CSIRO). These new polymeric architectures cannot be sufficiently characterized by existing facilities. The success of the project will significantly enhance the new macromolecular research and facilitate collaborations. This project also falls within the nano and biomaterials of the Designated Priority area of Research.Read moreRead less
The effect of de-gassing on the dispersion and stability of emulsions and colloidal solutions. Although it is widely accepted that oil and water will not mix, the reverse has recently been found to occur (by the applicant) under the unusual conditions of complete de-gassing. This discovery has opened up new areas for investigation and for the development of new processes and products. Hydrocarbon oils and hydrophobic powders can now be readily dispersed in water without the use of additives. Ho ....The effect of de-gassing on the dispersion and stability of emulsions and colloidal solutions. Although it is widely accepted that oil and water will not mix, the reverse has recently been found to occur (by the applicant) under the unusual conditions of complete de-gassing. This discovery has opened up new areas for investigation and for the development of new processes and products. Hydrocarbon oils and hydrophobic powders can now be readily dispersed in water without the use of additives. However, the mechanisms involved have not yet been elucidated and it is the aim of this project to understand the process and develop potential commercial applications.Read moreRead less