侧链液晶聚硅氧烷Langmuir膜的原子力显微镜观察

Atomic Force Microscope Observation of Langmuir Film of Side Chain Liquid Crystalline Polysiloxane

通过原子力显微镜观测了含手性基团侧链液晶聚硅氧烷在空气/水界面上的单层膜,观测了成膜物在界面形成微畴结构以及表面压力升高时微畴聚集、重排过程,分析了纳米级微畴形成、聚集和重排的机理和规律.

The Langmuir film of a side chain liquid crystalline polysiloxane with chiral end groups at the air/ water interface has been observed using Atomic Force Microscope (AFM). The domains of the polysiloxane formed at the interface and the aggregation and rearrangement process of the film have been studied. The nano - scale dispersed particles can form one - layer structure and bilayer overlapped structure in succession when compressing. The models are proposed to explain the formation, aggregation and rearrangement of these nanoscale domains of the polysiloxane liquid crystals.