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手性化合物环境下制备甲壳型液晶高分子
SYNTHESIS OF MESOGEN-JACKETED LIQUID CRYSTALLINE POLYMERS IN CHIRAL CONDITIONS
【Abstract】 Mesogen-Jacketed liquid crystalline polymers were synthesized in various chiral conditions using 1) (\|)\|menthol as a reaction solvent (additive),2) (\|)\|dimenthyl peroxydicarbonate as a chiral free radical initiator,3) menthyl methacrylate as a comonomer for copolymerization,4) (-)-sparteine-fluorenyllithium as a chiral anionic initiator and 5) a chiral monomer.In the polymerization using a chiral initiator or a chiral solvent,the helix-sense-selection was not found.In the case of the copolymerization,the chiral monomeric unit incorporated into the polymer chain was found to induce liquid crystallinity.Chiral mesogen-Jacketed polymer was also synthesized from chiral monomer 5.However,this polymer did not form a liquid crystal phase although it met the model of Mesogen-Jacketed liquid crystalline polymers.
【Key words】 Poly{2; 5-bis\[(4′ methoxyphenoxy)carbonyl\]styrene}; Mesogen-Jacketed liquid crystalline polymers; Chiral compounds environments;
- 【文献出处】 高分子学报 ,ACTA POLYMERICA SINICA , 编辑部邮箱 ,2000年02期
- 【分类号】O631
- 【被引频次】5
- 【下载频次】219