Facile fabrication of Janus magnetic microcapsules via double in situ miniemulsion polymerization

被引：27

作者：

Zhang, Jianan ^{[1
]}

Qiu, Shuilai ^{[1
]}

Zhu, Yulu ^{[1
]}

Huang, Zhengqi ^{[1
]}

Yang, Beibei ^{[1
]}

Yang, Wenlong ^{[1
]}

Wu, Mingyuan ^{[1
]}

Wu, Qingyun ^{[1
]}

Yang, Jianjun ^{[1
]}

机构：

[1] Anhui Univ, Sch Chem & Chem Engn, AnHui Prov Key Lab Environm Friendly Polymer Mat, Hefei 230039, Peoples R China

来源：

POLYMER CHEMISTRY | 2013年 / 4卷 / 05期

基金：

中国国家自然科学基金;

关键词：

POLYMER/SILICA NANOCOMPOSITES; HOLLOW MICROSPHERES; PARTICLES; NANOPARTICLES; NANOCAPSULES;

D O I：

10.1039/c2py20863f

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We describe a facile and flexible technique for fabricating Janus magnetic microcapsules via double in situ miniemulsion polymerization. Under a magnetic field, magnetic nanoparticles move to one side of the miniemulsion monomer droplets. After the monomers polymerize, an inorganic tetraethoxysilane (TEOS) phase is compressed and restricted as a liquid core due to the phase separation between TEOS and the growing polymer. After the monomers turn into a polymeric shell and the silica forms completely, the volume of the TEOS phase decreases dramatically leading to a hollow structure. Magnetic nanoparticles are chemically embedded in one side of the microcapsule shell and Janus magnetic microcapsules are fabricated efficiently and conveniently by a one-step method.

引用

页码：1459 / 1466

页数：8

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