Alauddin, Sakinah Mohd and Ibrahim, A. Ramadan and Aripin, Nurul Fadhilah Kamalul and Velayutham, Thamil Selvi and Abou-Zied, Osama K. and Martinez-Felipe, Alfonso (2021) New side-chain liquid crystalline terpolymers with anhydrous conductivity: Effect of azobenzene substitution on light response and charge transfer. European Polymer Journal, 146. ISSN 0014-3057, DOI https://doi.org/10.1016/j.eurpolymj.2020.110246.
Full text not available from this repository.Abstract
We have prepared and characterised a series of side-chain liquid crystalline homopolymers and terpolymers containing different azobenzene derivatives (RAzB), sulfonic groups (2-acrylamido-2-methyl-1-propanesulfonic acid, AMPS), and methyl(methacrylate) groups (MMA), as monomeric units. We have evaluated the effect of different para-substitutes of 6-(4-azobenzene -4'-oxy)hexyl methacrylate, at the side chains, OCH3, NO2 and H, on the phase behaviour and conductivity of the new polymers. The copolymers can form smectic and nematic phases, depending on their composition, and have light responsiveness, conferred by the azobenzene chromophores. The terpolymer with methoxy terminations, MeOAzB/AMPS/MMA, exhibits the highest conductivity values of the series (10(-2)/10(-3) S.cm(-1) range) through liquid crystalline phases and with signs of decoupling from polymeric segmental motions. These materials are promising candidates to develop new light-responsive polymeric electrolytes for electrochemical conversion devices in which ionic conductivity under anhydrous conditions can be controlled by their nanostructure.
| Item Type: | Article |
|---|---|
| Funders: | University of Aberdeen [SF10192], Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) Japan Society for the Promotion of Science [RIG008586], Royal Society and Specac Ltd., [RGS\R1\201397], Royal Society of London[M190000] |
| Uncontrolled Keywords: | Side-chain liquid crystal polymers; Ionic conductivity; Azobenzene; Energy conversion; Polymer electrolytes |
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Science > Department of Physics |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 21 Jul 2022 02:30 |
| Last Modified: | 21 Jul 2022 02:30 |
| URI: | http://eprints.um.edu.my/id/eprint/28432 |
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