In situ Synthesis of Magnetic Iron Oxide Nanoparticles in Thermally Responsive Alginate-Poly(N-isopropylacrylamide) Semi-Interpenetrating Polymer Networks

被引：95

作者：

Hernandez, Rebeca ^{[1
]}

Mijangos, Carmen ^{[1
]}

机构：

[1] CSIC, Inst Ciencia & Tecnol Polimeros, Madrid 28006, Spain

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2009年 / 30卷 / 03期

关键词：

hydrogels; magnetic polymers; semi-interpenetrating networks; stimuli sensitive polymers; CROSS-LINKED ALGINATE; DRUG-RELEASE; HYDROGELS; GELS; SPECTROSCOPY; TEMPERATURE; GAMMA-FE2O3; HYDROLYSIS; COLLAPSE; ACID;

D O I：

10.1002/marc.200800602

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理];

摘要：

A novel semi-interpenetrating polymer network based on alginate and poly(N-isopropylacrylamide) (PNiPAAm) has been synthesized that shows response to temperature and magnetic fields. Highly homogeneous porous hydrogels are obtained by copolymerizing N-isopropylacrylamide and Dis-acrylamide in the presence of an aqueous alginate solution. The synthesis of magnetic iron oxides by in-situ oxidation of iron cations coordinated to the alginate network results in a hydrogel with an enhanced deswelling rate with respect to pure PNiPAAm.

引用

页码：176 / 181

页数：6

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