Supramolecular gels based on multi-walled carbon nanotubes bearing covalently attached cyclodextrin and water-soluble guest polymers

被引：16

作者：

Klink, Michael ^{[1
]}

Ritter, Helmut ^{[1
]}

机构：

[1] Univ Dusseldorf, Inst Organ & Makromol Chem, Lehrstuhl Praparat Polymerchem, D-40225 Dusseldorf, Germany

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2008年 / 29卷 / 14期

关键词：

D O I：

10.1002/marc.200800142

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The preparation of associative networks containing multi-walled carbon nanotubes (MWCNTs) with covalently attached cyclodextrin (CD) rings and poly[ (isobutylene) -co- (maleic anhydride) - co- (maleic acid- (4-tert-butylphenyl)amide)] in water is described in this study. The synthesis of CD containing MWCNTs is realized by an amidation reaction of oxidized MWCNTs with propargylamine followed by a 1,3-dipolar cycloaddition with CD-azide. Dispersion behavior indicated the high stability of these networks. An increase in viscosity compared to a solution of pure polymer as a cause of network formation is observed. The addition of a CD-decomposing enzyme (taka-diastase from Aspergillus oryzae) let the network collapse and results in sedimentation of the modified MWCNTs.

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页码：1208 / 1211

页数：4

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