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采用可逆加成-断裂链转移(RAFT)、引发转移终止(Iniferter)活性自由基聚合法分步骤制备多官能Iniferter的大分子(RAFT-MI),并通过紫外光聚合诱导相分离法制备接枝共聚物为基体的聚合物分散液晶(PDLC)膜,研究了不同含量的RAFT-MI对PDLC膜的微观形貌、开态透光率、阈值电压(Vth)、饱和电压(Vsat)、对比度和记忆效应的影响.结果表明,当PDLC中的RAFT-MI含量从10%增加到30%时,开态透光率先增加,随后又逐渐降低,而Vth、Vsat逐渐降低,对比度先增加,然后又降低,记忆效应减弱.
Multi-functional Iniferter macromolecules (RAFT-MI) were prepared by reversible addition-fragmentation chain transfer (RAFT) and Iniferter activity free radical polymerization. The grafting (PDLC) films with different content of RAFT-MI were used to study the morphology, open-light transmittance, threshold voltage (Vth), saturation voltage (Vsat), contrast and Memory effect.The results showed that when the content of RAFT-MI in PDLC increased from 10% to 30%, the light transmittance in open state first increased and then decreased gradually, while the Vth and Vsat decreased gradually, then the contrast first increased, and then Reduce, memory effect weakened.