Fabrication of inclusion compounds with solid host γ-cyclodextrins and water-soluble guest polymers: Inclusion of poly(n-acylethylenimine)s in γ-cyclodextrin channels as monitored by solution 1H NMR
Fabrication of inclusion compounds with solid host γ-cyclodextrins and water-soluble guest polymers: Inclusion of poly(n-acylethylenimine)s in γ-cyclodextrin channels as monitored by solution 1H NMR
复制标题
用固体主体 γ-环糊精和水溶性客体聚合物制备包合物：通过溶液 1H NMR 监测，γ-环糊精通道中包含聚（n-酰基乙烯亚胺）
DOI：
10.1021/ma040081
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发表时间：
2004
期刊：
影响因子：
5.5
通讯作者：
A. Tonelli
中科院分区：
文献类型：
--
作者：
M. Rusa;Xingwu Wang;A. Tonelli
我们成功地报告了聚（N-酰基乙烯亚胺）-γ-环糊精包合物（PNAI-γ-CD IC）的形成。通过三种技术获得PNAI-γ-CD IC：（a）γ-CD在聚合物溶液中的沉淀，以及（b）和（c）将收到的笼状结构γ-CD和γ-CDCS（具有预形成的通道结构）分别悬浮在聚合物溶液中。B。用固体FTIR、X射线衍射、NMR、DSC和TGA等方法对PNAI-γ-CD IC进行了表征。进行1H NMR研究以跟踪溶液中包合过程的动力学。用1H NMR监测了不同分子量的PNAI与笼状结构γ-CD或通道结构γ-CDCS的包合时间。丙酮是γ-CD的非溶剂，用作PNAI溶液的溶剂。水在聚合物包合过程中所起的作用的一些方面，揭示了从我们的时间观察到的PNAI客人纳入溶胶。
We successfully report the formation of poly(N-acylethylenimine)−γ-cyclodextrin inclusion compounds (PNAI-γ-CD ICs). The PNAI-γ-CD ICs were obtained by three techniques: (a) the precipitation of γ-CD in the polymer solution and (b) and (c) the suspension of as-received cage structure γ-CD and γ-CDCS, with a preformed channel structure, respectively, in the polymer solutions. The PNAI-γ-CD ICs were characterized by solid-state FTIR, X-ray, NMR, DSC, and TGA observations. A 1H NMR study was performed in order to follow the kinetics of the inclusion process in solution. The time-dependent inclusion of PNAIs with different molecular weights by suspension of either as-received cage structure γ-CD or channel structure γ-CDCS in the PNAI solutions was monitored with 1H NMR. Acetone, a nonsolvent for γ-CD, was used as the solvent for the PNAI solutions. Some aspects regarding the role water plays in the polymer inclusion process are revealed from our temporal observations of the inclusion of PNAI guests into sol...