Inclusion complex formation between α,β-cyclodextrins and organic-inorganic star-shaped poly(ethylene glycol) from an octafunctional silsesquioxane core

被引：34

作者：

Huang, JC

Li, X

Lin, TT

He, CB

Mya, KY

Xiao, Y

Li, J

机构：

[1] Inst Mat Res & Engn, Singapore 117602, Singapore

[2] Natl Univ Singapore, Fac Engn, Div Bioengn, Singapore 117576, Singapore

来源：

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 2004年 / 42卷 / 07期

关键词：

inclusion chemistry; nanotechnology; nonlinear polymers; poly(ethylene glycol); cyclodextrins;

D O I：

10.1002/polb.10785

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A series of organic-inorganic star-shaped poly(ethylene glycol)s from octa-functional silsesquioxane (POSS) cores were synthesized by allylation and hydrosilylation, and they were found to form crystalline inclusion complexes with alpha,gamma-cyclodextrins. The results from X-ray diffraction, cross-polarity/magic-angle-spinning C-13 NMR, differential scanning calorimetry, and Fourier transform infrared suggested that a channel-type structure was established in the inclusion complexes. The characterization results also revealed that the segments of poly(ethylene glycol) arms near the POSS cores were uncovered by the cyclodextrins, whereas the cyclodextrins were closely packed along the remaining portion of the poly(ethylene glycol) arms. Molecular dynamic simulation in a Dreiding force field with Cerius(2) software gave comparable results. (C) 2004 Wiley Periodicals, Inc.

引用

页码：1173 / 1180

页数：8

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