Composite worm-like aggregates formed from a pair of block-copolymers containing hydrogen-bonding donor and acceptor

被引：26

作者：

Xiong, De'an ^{[1
]}

Shi, Linqi ^{[1
]}

Jiang, Xiaowei ^{[1
]}

An, Yingli ^{[1
]}

Chen, Xi ^{[1
]}

Lu, Juan ^{[1
]}

机构：

[1] Nankai Univ, Inst Polymer Chem, Key Lab Funct Polymer Mat, Minist Educ, Tianjin 300071, Peoples R China

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2007年 / 28卷 / 02期

关键词：

block copolymers; chain; composite aggregates; hydrogen bonding; worm-like aggregates;

D O I：

10.1002/marc.200600681

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Worm-like aggregates with a PAA/P4VP complex core and a PEG/PNIPAM mixed shell were prepared in ethanol by the comicellization of poly(ethylene glycol)-block-poly(acrylic acid) (PEG-b-PAA) and poly(N-isopropylacrylamide)-block-poly(4-vinylpyridine) (PNIPAM-b-P4VP) through hydrogen-bonding. The formed aggregates were studied by dynamic light scattering, static light scattering, H-1 NMR, and transmission electron microscopy. The length of worm-like aggregates could be adjusted by changing the weight ratio of W(PNIPAM-b-P4VP)/W(PEG-b-PAA). When the ratio changed from 20 to 150%, the length changed from about 100 nm to several microns, and the diameter stayed almost unchanged at about 15 nm.

引用

页码：194 / 199

页数：6

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