Toroid formation through a supramolecular "cyclization reaction" of rodlike micelles
Toroid formation through a supramolecular "cyclization reaction" of rodlike micelles
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通过棒状胶束的超分子“环化反应”形成环形
DOI：
10.1002/anie.201701978
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Zhibo Li
中科院分区：
文献类型：
--
作者：
Chaoying Yang;Liang Gao;Jiaping Lin;Liquan Wang;Chunhua Cai;Yuhan Wei;Zhibo Li
构造具有均匀、可调尺寸的聚合物环形是具有挑战性的。本文报道了通过两步自组装过程由聚（γ-苄基-1-谷氨酸酯）-接枝-聚（乙二醇）（PBLG-g-PEG）接枝共聚物形成均匀的环形。在第一步中，通过对水透析溶解在四氢呋喃（THF）/N，N′-二甲基甲酰胺（DMF）中的聚合物来制备均匀的棒状胶束。在第二步中加入THF，棒状胶束弯曲，然后端对端闭合，形成均匀的环形，这类似于环化反应。
Constructing polymeric toroids with a uniform, tunable size is challenging. Reported herein is the formation of uniform toroids from poly(γ‐benzyl‐l‐glutamate)‐graft‐poly(ethylene glycol) (PBLG‐g‐PEG) graft copolymers by a two‐step self‐assembly process. In the first step, uniform rodlike micelles are prepared by dialyzing the polymer dissolved in tetrahydrofuran (THF)/N,N′‐dimethylformamide (DMF) against water. With the addition of THF in the second step, the rodlike micelles curve and then close end‐to‐end to form uniform toroids, which resemble a cyclization reaction.