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Effect of polymer structures on electro-optical properties of polymer stabilized liquid crystal films
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作者 Shoulian WANG Jie HE +2 位作者 Yu ZENG Bin YAN Yinghan WANG 《Frontiers of Chemical Science and Engineering》 SCIE EI CSCD 2008年第3期265-268,共4页
The polymer stabilized liquid crystal(PSLC)film is a relatively novel electro-optical material,which is generally obtained by dissolving a small amount of a bifunctional photoreactive monomer in a low molecular mass l... The polymer stabilized liquid crystal(PSLC)film is a relatively novel electro-optical material,which is generally obtained by dissolving a small amount of a bifunctional photoreactive monomer in a low molecular mass liquid crystal.In this paper,the PSLC films were prepared with photoreactive biphenyl methacrylate monomers by photopolymerization induced phase separation.The effects of liquid crystal concentration,curing time,monomer structures and alignment layer on the electro-optical properties of PSLC films were investigated.The results show that the transmittance in the OFF state(TOFF)increased with the liquid crystal concentration,but the driving voltage decreased.TOFF was also influenced by the curing time.Furthermore,when polyimide was used as alignment layer,the films prepared from the bifunctional monomer shows a higher TOFF,while those from the single functional monomer exhibited a deformed electro-optical curve due to the unsteady polymer networks. 展开更多
关键词 polymer network liquid crystal network morphology electric-optical properties
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