Structural Characterization of Glycoconjugate Polystyrene in Aqueous Solution
Structural Characterization of Glycoconjugate Polystyrene in Aqueous Solution
复制标题
水溶液中糖复合聚苯乙烯的结构表征
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
K. Kajiwara
中科院分区：
文献类型：
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作者：
I. Wataoka;H. Urakawa;Kazukiyo Kobayashi;T. Akaike;Manfred Schmidt;K. Kajiwara
通过乙烯基苄基麦芽五糖酰胺的均聚反应合成了载麦芽五糖聚苯乙烯。将所得两亲性大分子单体溶解于0.1 M尿素水溶液中，通过小角X射线散射和分子模拟对其结构进行了表征。发现含麦芽五糖的聚苯乙烯大分子单体是由大螺旋聚苯乙烯主链和麦芽五糖刷组成的分子瓶刷。分子瓶刷呈随机分布，有的甚至断裂一次或两次，节段间无明显空间相关性。聚苯乙烯骨架的大螺旋由TT、TG和/或TTGG的随机序列形成。
Maltopentaose-carrying polystyrene was synthesized by the homopolymerization of vinylbenzyl maltopentaose amide. Resulted amphiphilc polymacromonomer was dissolved in 0.1 M urea aqueous solution, and its structure was characterized by small-angle X-ray scattering and molecular modeling. Maltopentaose-carrying polystyrene polymacromonomer was found to be represented by a molecular bottlebrush, composed of a large helix of polystyrene backbone and maltopentaose brushes. The molecular bottlebrush seems to be distributed randomly or many even be broken once or twice in segments with no apparent intersegmental spatial correlation. A large helix of polystyrene backbone is formed by a random sequence of TT, TG, and/or TTGG.