Effect of graft copolymer matrix prepared by reversible addition–fragmentation chain transfer and atom transfer radical polymerization on the electro‐optical properties of polymer‐dispersed liquid crystals |
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| Authors: | Tian Lan Wenjie Yang Juan Peng Mingke Li Yinghan Wang |
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| Affiliation: | State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, , Chengdu, 610065 PR China |
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| Abstract: | A type of graft macroinitiator, synthesized by reversible addition–fragmentation chain transfer (RAFT) and atom transfer radical polymerization, was employed to prepare polymer‐dispersed liquid crystals (PDLCs) with graft copolymer matrix; meanwhile, a linear macroinitiator was also synthesized via RAFT polymerization. The effect of linear and graft macroinitiators on the electro‐optical (EO) properties of the PDLCs was investigated. The results showed that the graft macroinitiator could make a large difference to the EO properties of the PDLCs. The memory effect was reduced remarkably, but the driving voltage increased and transmittance decreased. A possible mechanism is presented. © 2014 Society of Chemical Industry |
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| Keywords: | PDLC graft macroinitiator EO properties RAFT ATRP |
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