Preparation of pH-responsive hydrophilic core-shell particles for encapsulation of water-soluble material

被引：6

作者：

Park, Young-Ho ^{[1
]}

Han, Joo-Hyun ^{[1
]}

Suh, Kyung-Do ^{[1
]}

机构：

[1] Hanyang Univ, Div Chem Engn, Coll Engn, Seoul 133791, South Korea

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 2008年 / 209卷 / 09期

关键词：

core-shell polymers; morphology; polyelectrolytes; stimuli-sensitive polymers;

D O I：

10.1002/macp.200700586

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Dual pH-responsive PAAc/PVAm core-shell particles to encapsulate water-soluble material were prepared through the deposition of PVAm on the surface of PAAc core particles. The structural characteristics of the core-shell particles were confirmed by SEM and CLSM. To investigate the release profiles of the core-shell particles and PAAc core, methylene blue, which is a cationic water-soluble dye, was introduced. Release profiles were dominantly affected by the core swelling behavior at different pH values. The release rate of the core-shell was less than the PAAc core, indicating that it is by ionic interactions between the particle and the cationic dye.

引用

页码：938 / 943

页数：6

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