Enhanced Gas Permselectivity of Copoly(Hyperbranched Macromonomer) Synthesized by One-pot Simultaneous Copolymerization of Dimethylsilyl-containing Phenylacetylenes
Enhanced Gas Permselectivity of Copoly(Hyperbranched Macromonomer) Synthesized by One-pot Simultaneous Copolymerization of Dimethylsilyl-containing Phenylacetylenes
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DOI：
10.1246/cl.2012.1462
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发表时间：
2012-11-05
影响因子：
1.6
通讯作者：
Teraguchi, Masahiro
中科院分区：
文献类型：
--
作者：
Li, Jun;Wang, Jianjun;Teraguchi, Masahiro
由两种二甲基硅基苯乙炔一锅同时共聚合成了超支化大分子单体S，即具有多个支链的聚苯乙炔S。具有几种支化结构的共聚(超支化大分子单体)S膜对氧气和二氧化碳对氮气的选择比相应的超支化大分子单体S的膜对氧和二氧化碳的选择性更高。特别是具有长刚性支链的共聚(超支化大分子单体)S兼有聚苯乙炔S和聚树枝状大分子S的优点。综上所述，采用一锅同时聚合法制备了性能优良的超支化大分子单体S。据我们所知，这是首次合成具有良好气体分离膜性能的复杂共聚物。
Copoly(hyperbranched macromonomer)s, i.e., poly(phenylacetylene)s having many branches were synthesized by one-pot simultaneous copolymerization of two kinds of dimethylsilyl-phenylacetylenes. Membranes from the copoly(hyperbranched macromonomer)s having several kinds of branches showed higher permselectivities for oxygen and carbon dioxide over nitrogen than those of the corresponding copoly(hyperbranched macromonomer)s without any branches. In particular, the copoly(hyperbranched macromonomer)s having long and rigid branches had both the advantages of poly(phenylacetylene)s and poly(dendron)s. In summary, copoly(hyperbranched macromonomer)s showing good performance as gas-separation membranes were synthesized very easily by the one-pot simultaneous polymerization method. To our knowledge, this is the first synthesis of such complex copolymers showing good performance as gas-separation membranes.