Haloaldehyde Polymers. XXXVII. Optically Active Polychloral Initiated with Weak Chiral Anionic Initiators
Haloaldehyde Polymers. XXXVII. Optically Active Polychloral Initiated with Weak Chiral Anionic Initiators
复制标题
卤醛聚合物。
DOI：
10.1080/00222338908052036
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发表时间：
1989
期刊：
影响因子：
--
通讯作者：
O. Vogl
中科院分区：
文献类型：
--
作者：
W. Harris;O. Vogl
摘要用弱手性引发剂引发氯醛聚合，在0.5mol%的浓度下，得到了光学活性的聚氯醛。在薄膜中测量的各种聚氯醛样品的最大旋转取决于引发剂如下：（+）-O-乙酰扁桃酸四甲基铵[α]D 25 = -1860°，（-）-O-乙酰扁桃酸四甲基铵[α]D 25 = +1180°，（+）-α-甲氧基扁桃酸四甲基铵[α]D 25 = -190°，（-）-α-甲氧基扁桃酸四甲基铵[α]D 25 = +210°。
Abstract Chloral polymerizations initiated with weak chiral initiators, used at 0.5 mol% concentration, gave optically active polychloral. Maximum rotations of the various polychloral samples, measured in film gorm, depended on the initiator as follows: tetramethylammonium (+)-O-acetylmandelate [α]D 25 = -1860°, tetramethylammonium (-)-O-acetylmandelate [α]D 25 = +1180°, tetramethylammonium (+)-α-methoxymandelate [α]D 25 = -190°, tetramethylammonium (-)-α-methoxymandelate [α]D 25 = +210°.