Functions Realized by Controlled Configuration of Optically active Polymers

该项目旨在通过控制构型来实现光学活性聚合物的新功能。为此，研究了主链构型与主链或侧链的关系。重点研究了α-烯烃与CO交替共聚得到的旋光性聚合物。取得了以下三方面的成果：(1)通过比较聚酮与单元模型化合物的CD和ORD光谱，认为丙烯与CO不对称交替共聚生成的旋光活性聚酮不太可能形成稳定的螺旋结构。(2)通过聚(丙烯-ALT-CO)反应成功地合成了旋光性碳氢化合物聚合物，或者当侧链为丁基而不是甲基时，主链的流动性降低。(3)合成了含偶氮苯侧链的光学活性聚酮。另一方面，当聚酮完全存在时，当主链中含有聚酮的异构体螺缩醛单元的25%时，CD可以确定主链结构的转变。

The project purposed to realize new functions of optically active polymers by controlling the configuration. For this purpose, the relation between the main-chain configuration and either the main-chain or the side-chain was investigated. The research was particularly focused on the optically active polymers obtained by the alternating copolymerization of α-olefin and CO. the following three achievements were obtained.(1)it was suggested that the formation of stable helical structure is less probable for the optically active polyketone which was produced by the asymmetric alternating copolymerization of propene with CO, by comparing the CD and ORD spectra of polyketone with those of a single-unit model compound. (2) Optically active hydrocarbon polymer was successfully produced by the reaction of poly (propene-alt-CO) or the mobility of the main chain was lowered when the side chain is butyl instead of methyl. (3)Optically active polyketone bearing an azobenzene side chain was produced. When the polyketone was completely in it's the other hand, the switching of the main chain structure was detedcted by CD when the main chain contained 25% of spiroacetal unit which is an isomeric from of polyketone.