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旋光性聚甲基丙烯酸三苯甲酯的合成
THE SYNTHESIS OF OPTICALLY ACTIVE POLYCTRIPHENYL METHYL METHACRYLATE)
【摘要】 <正> 旋光性聚甲基丙烯酸三苯甲酯(PTrMA,A)是一种新型旋光聚合物,其旋光性不是来自结构单元中的手性原子或基因,而是刚性的分子链呈长程单向螺旋构象,使分子链获得手征性的结果.自70年代末问世以来,在改进其合成方法和作为色谱固定相直接拆分手性化合物的应用方面受到人们注意,由于独特的结构,可以设想,如果将它带上特殊
【Abstract】 On the wide varities of optically active polymers, PTrMA is one of the most attractive because its chirality derives from the helicity of polymer chain in one hand screw. In the present work, TrMA was synthesized with Pb(NO3)2 instead of AgNOa reported. With chiral diamine (-)-Sparteine and (+)-DDB as ligands, optically active PTrMA was obtained with specific rotation ([α] DM + 356°) higher than that of reported so far. The influence of polymerization condition on polymer properties was discussed. Other ligands and initiators for obtaining optically active PTrMA were also investigated.
【Key words】 Poly (triphenylmetbyl Methacrylate); Helical Chain; Opticlly Active Polymer; Asymmetric Polymerization;
- 【文献出处】 高分子学报 ,Acta Polymerica Sinica , 编辑部邮箱 ,1988年04期
- 【被引频次】6
- 【下载频次】137