Polymerization of ionic liquids ..
This project intend to develop electroactive actuators based in Ionic liquid (IL)/ Poly(vinylidene fluoride) (PVDF) composites. Ionic liquids are a new class of salts with a melting point below 100 ºC with unic and tunable properties while poly(vinylidene fluoride) (PVDF) is the polymer with the highest piezoelectric response among polymers. The incorporation of IL in PVDF matrix results in large displacement in bending motion, under low-voltage conditions, caused by ion migration and accumulation on the electrode under an applied electric field. Different types and percentages of ionic liquids are being used on the preparation of the materials.
Oxygen Reduction Reaction in Ionic Liquids: …
Chuan Zhao is currently an associate professor at the School of Chemistry at The University of New South Wales (UNSW), based in Sydney, Australia. He received his Ph.D. in 2002 with an excellence award from Northwest University. He then completed 4 years of postdoctoral research at the University of Oldenburg. In 2006, he moved to Monash University as a senior research fellow. He started his independent research career at UNSW as a Lecturer in Oct. 2010. He also held a prestigious Australian Research Fellowship from Australian Research Council from 2011–2015. He is currently the chairman of the Royal Australian Chemical Institute (RACI) Electrochemistry Division. He is interested in ionic liquids chemistry and discovering novel electroactive materials and their implications to electrochemical energy storage and conversion, and sensor applications. He has published 3 book chapters and over 100 papers and also holds 7 patents.
The following project will utilise the unique customisable properties of ionic liquids (Ils) coupled with polymer chemistry to develop novel materials for sensor technologies and smart materials. The candidates project will be focussed upon the synthesis and development of monomeric ionic liquids and their integration polymer matrices utilising homo-polymer, co-polymer and Interpenetrating polymer network (IPN) techniques. Ionic liquids can be used as conductive media for signal transduction and the large numbers of ions available has resulted in an almost limitless range of compositions, each with specific properties. This allows for the selection of ionic liquids as highly influential components within polymer matrices. Careful selection of the cation and anions can greatly alter the polymer properties such as conductivity, durability, softness and elasticity. The integration of photoactive materials (spiropyrans) has allowed for the development of light responsive materials with reversible/switchable porperties with applications such as polymeric valves. The charged nature of ILs, however, make them susceptible to migration out of the polymer matrix when exposed to polar solvents (water, ethanol). The tethering of a polymeric unit to the IL is believed to remove this issue but physically anchoring the IL to the polymer network. The successful candidate will develop a range of Ils based upon a range of ions, primarily phosphonium and imiazolium based Ils, and establish trends in their chemical and physical properties for selection of optimised materials for specific applications.