| 초록 |
In this study, rationally designed random copolymers poly(styrene-ran-butyl acrylate) (PS-r-PBA) including highly flexible, low glass transition temperature (Tg) segments is prepared by one-pot reversible additional-fragmentation chain transfer (RAFT) polymerizations. The BA was used as the ionic liquid (IL)-soluble part due to the high chain flexibility and rapid ion movement is expected when mixed with 1-butyl-3-methylimidazolium bromide ([BMI][TFSI]). The performance of ion gels was systematically examined. As a result, the effectiveness of high chain flexibility of BA was shown as higher ionic conductivity. The gels with PS-r-PBAs were further optimized in terms of molecular characteristics of copolymers and gel composition. The versatile feasibility of PS-r-PBA-based gels as practical electrolytes platforms was demonstrated by preparing all-in-one electrochromic devices (ECDs). |
