摘要
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.
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.
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
2000年第2期253-256,共4页
Acta Polymerica Sinica
基金
中国博士后科学基金
国家自然科学基金!(基金号 5 9873 0 0 1)
关键词
甲壳型
手性化合物
液晶高分子
聚酯
Poly{2,5-bis\[(4′ methoxyphenoxy)carbonyl\]styrene}, Mesogen-Jacketed liquid crystalline polymers,Chiral compounds environments
