聚硅氧烷侧链液晶聚合物的研究进展

Research progress of polysiloxane side-chain liquid crystalline polymers

聚硅氧烷侧链液晶聚合物(Polysiloxane side-chain liquid crystalline polymers,PSLCPs)是一种将液晶单体、特殊功能基团等通过交联反应接枝到硅氧烷主链上形成的液晶聚合物。凭借硅氧烷主链的软性和柔性及功能基团的光热电等响应特性,硅氧烷侧链液晶聚合物在光信息储存、非线性光学、图像显示、色谱、电流变等领域具有很重要的应用价值。本文对硅氧烷侧链液晶聚合物在宽波反射、柔性光响应器件、柔性应力响应器件、电响应器件和柔性涂料等领域取得的研究进展进行了总结,并对硅氧烷侧链液晶聚合物未来需解决的问题及发展趋势做了一定的展望。

Polysiloxane side-chain liquid crystalline polymers(PSLCPs)are a class of liquid crystal polymer that branches liquid crystal monomer or special functional group to the siloxane main chain through a crosslinking reaction.Due to the soft and flexibility of the siloxane main chain and the photo-/thermo-/electric response characteristics of functional groups,polysiloxane side-chain liquid crystalline polymers are widely used in optical information storage,nonlinear optics,image display,chromatography,current change,etc.In this paper,the research progress made by polysiloxane side-chain liquid crystalline polymers in the fields of wide-band reflection,flexible photo response devices,flexible optical paints and stress/electrical response devices are reviewed and discussed,and the future development trends is forecasted.