Preparation of thermo-responsive superhydrophobic TiO2/poly(N-isopropylacrylamide) microspheres

被引：16

作者：

Chen, Hao ^{[1
]}

Pan, Shuaijun ^{[1
]}

Xiong, Yuzi ^{[1
]}

Peng, Chang ^{[1
]}

Pang, Xiangzhong ^{[1
]}

Li, Ling ^{[1
]}

Xiong, Yuanqin ^{[1
]}

Xu, Weijian ^{[1
]}

机构：

[1] Hunan Univ, Inst Polymer Sci & Technol, Coll Chem & Chem Engn, Changsha 410082, Hunan, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2012年 / 258卷 / 24期

基金：

美国国家科学基金会;

关键词：

Thermo-responsive; Superhydrophobic; Core-shell structure; HYBRID MICROSPHERES; SHELL; FABRICATION; SURFACES;

D O I：

10.1016/j.apsusc.2012.04.096

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Here we reported a facile method that combined sol-gel and surface-initiated atom transfer radical polymerization (ATRP) to prepare thermo-responsive superhydrophobic TiO2/poly(N-isopropylacrylamide) microspheres with core-shell structure. The surface coated with microspheres show hydrophilic properties (CA = 90.5 +/- 2.3 degrees) at 27 degrees C, it changes to superhydrophobicity (CA = 150.2 +/- 2.3 degrees) while the temperature rises up to 42 degrees C. This performance is attributed to lower critical solution temperature (LCST) phenomenon of Poly (N-isopropylacrylamide). Five cycle measurements of water droplet reversible switch between hydrophilicity and superhydrophobicity were demonstrated temperature-responsive surface property. The changes were rapid and significant. The as-prepared particles have been characterized by scanning electron microscopy, transmission electron microscopy, thermal gravimetric analysis, FT-IR analysis, and dynamic light scattering. Crown Copyright (c) 2012 Published by Elsevier B.V. All rights reserved.

引用

页码：9505 / 9509

页数：5

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