Thermally switchable polyrotaxane as a model of stimuli-responsive supramolecules for nano-scale devices

被引：65

作者：

Fujita, H ^{[1
]}

Ooya, T ^{[1
]}

Kurisawa, M ^{[1
]}

Mori, H ^{[1
]}

Terano, M ^{[1
]}

Yui, N ^{[1
]}

机构：

[1] JAPAN ADV INST SCI & TECHNOL,SCH MAT SCI,TATSUNOKUCHI,ISHIKAWA 92312,JAPAN

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 1996年 / 17卷 / 08期

关键词：

D O I：

10.1002/marc.1996.030170803

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 polyrotaxane consisting of many P-cyclodextrins (beta-CDs) and a triblock copolymer of poly(ethylene glycol) (PEG) and poly(propylene glycol) (PPG) capped with bulky end-groups was synthesized as a model of stimuli-responsive supramolecules for nanoscale devices. The polyrotaxane was reversibly soluble-insoluble in water in response to temperature. This was achieved through the assembled and dispersed states of beta-CDs along the block copolymer. It is considered that intermolecular hydrogen bondings of beta-CDs, as well as the PEG segment length of the copoloymer, are predominant factors for regulating such thermally switchable behavior of the polyrotaxane.

引用

页码：509 / 515

页数：7

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