Poly(phenylacetylene) Amines: A General Route to Water-Soluble Helical Polyamines
Poly(phenylacetylene) Amines: A General Route to Water-Soluble Helical Polyamines
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DOI：
10.1021/acs.chemmater.8b03238
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发表时间：
2018-09
影响因子：
8.6
通讯作者：
Esteban Suárez-Picado;E. Quiñoá;R. Riguera;F. Freire
中科院分区：
文献类型：
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作者：
Esteban Suárez-Picado;E. Quiñoá;R. Riguera;F. Freire
带有仲胺和仲胺基团的聚苯乙炔几乎不为人所知，因为它们对聚合催化剂具有中毒活性。本文以[Rh（cod）_2]+ BF_（4-）为催化剂，在水溶液中通过直接聚合法合成了11种不同的氨基聚合物。它们是稳定的，水溶性的，并显示出螺旋结构，对作用于悬垂物的外部刺激（极性，pH值和金属离子）作出反应。的位置中的氨基在侧链被证明是至关重要的螺旋响应质子化。
Poly(phenylacetylene)s bearing prim- and sec-amine groups are barely known because of their poisoning activity toward the polymerization catalyst. Herein, we prepare 11 different amino polymers in high yields by direct polymerization of their corresponding ammonium salts in water using [Rh(cod)2]+BF4– as catalyst. They are stable, water-soluble, and show a helical structure that responds to external stimuli (polarity, pH, and metal ions) acting on the pendants. The location of the amino group in the pendant is shown to be critical for the helical response to protonation.