標題: Synthesis and characterization of cholesteric liquid crystalline copolysiloxanes containing 4-biphenyl 4-allyloxybenzoate and [S]-1-(2-naphthyl)ethyl 6-[4-(10-undecen-1-yloxy) biphenyl-4 '-carbonyloxy]-2-naphthoate side groups
作者: Lin, CH
Hsu, CS
應用化學系
Department of Applied Chemistry
關鍵字: polysiloxane;liquid crystal;cholesteric phase;chiral resolution
公開日期: 1-九月-2000
摘要: A series of side-chain liquid crystalline copolysiloxanes containing 4-biphenyl 4-allyloxybenzoate and [S]-1-(2-naphthyl)ethyl 6-[4-(10-undecen-1-yloxy) biphenyl-4'-carbonyloxy]-2-naphthoate side groups was synthesized and characterized. Differential scanning calorimetry and optical polarizing microscopy measurements reveal a cholesteric mesophase for all copolysiloxanes. The effect of the monomer feeding ratio on the mesomorphic temperature range of copolysiloxanes is discussed. These copolysiloxanes were used as stationary phases in gas chromatography capillary columns. They show very unique, chiral separating properties for various racemic compounds.
URI: http://hdl.handle.net/11536/30303
ISSN: 1022-9760
期刊: JOURNAL OF POLYMER RESEARCH-TAIWAN
Volume: 7
Issue: 3
起始頁: 167
結束頁: 173
顯示於類別:期刊論文


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  1. 000165792700005.pdf