Effect of rGO on polymer-dispersed liquid crystal fabricated by RAFT polymerisation |
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| Authors: | Yuliang Zhang Leishan Shao Jingjing Li Qi Xu Lulu Liu Heng Zhang |
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| Affiliation: | 1. State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu, PR China;2. Maoming Branch R&3. D Institute, SINOPEC, Maoming, China |
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| Abstract: | In this study, we demonstrated that doping polymer matrix with a small amount of reduced graphene oxide (rGO) component (0.05–0.2%) had significant influence on the polymerisation kinetics and electro-optical performances of polymer-dispersed liquid crystal films (PDLCs) fabricated with macro reversible addition-fragmentation chain transfer agents. The effects of rGO content were studied in terms of morphology, compound viscosity, polymer conductivity, polymerisation kinetics and driving voltage of PDLCs. The results exhibited that higher rGO content increased the compound viscosity and the entire process proceeded slowly. Furthermore, the addition of rGO increased the polymer conductivity and local electric field, and reduced the saturation voltage as well as the threshold voltage from 27.3 to 19.5 V and 13.2 to 6.41 V, respectively. |
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| Keywords: | PDLC rGO RAFT conductivity electro-optical |
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