Convenient synthesis of fully and partially deuterated stereoregular poly(phenylacetylene)s bearing a carboxy pendant and helicity induction on the polymers with chiral amines and its memory
Convenient synthesis of fully and partially deuterated stereoregular poly(phenylacetylene)s bearing a carboxy pendant and helicity induction on the polymers with chiral amines and its memory
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带有羧基侧链的完全和部分氘代立构规整聚苯乙炔的便捷合成以及手性胺聚合物上的螺旋诱导及其记忆
DOI：
10.1002/pola.20379
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
E. Yashima
中科院分区：
文献类型：
--
作者：
K. Morino;Takeshi Asari;Katsuhiro Maeda;E. Yashima
摘要以4-乙基苯甲酸或其在苯基上氘化的衍生物与水溶性铑配合物在水或氧化氘中，在碱的存在下，在苯基上氘化的聚[（4-羧基苯基）乙炔]及其主链和/或苯基上氘化的衍生物（聚-1's）进行聚合反应，制备了聚[（4-羧基苯基）乙炔]及其衍生物。经核磁共振和拉曼光谱分析，所得聚合物具有高度顺-横-面立体规则结构。研究了部分氘化和完全氘化多聚1在手性胺诱导螺旋过程中的氘同位素效应及其在非手性胺辅助下的记忆作用。用核磁共振氢谱研究了聚-1甲酯的热顺反异构化反应。©2004 Wiley期刊公司[J] .化学工程学报，2004,31 (2):444 - 444
Poly[(4-carboxyphenyl)acetylene] and its derivatives deuterated in the main chain and/or on the phenyl group (poly-1's) were conveniently synthesized by the polymerization of 4-ethynylbenzoic acid or its derivative deuterated on the phenyl group in the presence of bases with a water-soluble rhodium complex in water or deuterium oxide. The obtained polymers possesses highly cis–transoidal stereoregular structures according to NMR and Raman spectroscopy. Possible deuterium isotope effects of these partially and fully deuterated poly-1's during the helicity induction with chiral amines and its memory assisted by achiral amines were investigated. The thermal cis–trans isomerization of the methyl esters of poly-1's was also studied with 1H NMR spectroscopy. © 2004 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 42: 4711–4722, 2004