Emulsifier-free core-shell polyacrylate latex nanoparticles containing fluorine and silicon in shell

被引：111
|
作者：
Cui, Xuejun [1 ]
Zhong, Shuangling [2 ]
Wang, Hongyan [1 ]
机构：
[1] Jilin Univ, Dept Chem, Changchun 130012, Peoples R China
[2] Jilin Univ, Dept Chem, Alan G MacDiarmid Inst, Changchun 130012, Peoples R China
来源：
POLYMER | 2007年 / 48卷 / 25期
基金：
中国国家自然科学基金;
关键词：
emulsifier-tree; core-shell; silicon-containing fluorinated polyacrylate;
D O I：
10.1016/j.polymer.2007.10.019
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The emulsifier-free core-shell polyacrylate latex nanoparticles containing fluorine and silicon in shell were successfully synthesized by emulsifier-free seeded emulsion polymerization with water as the reaction medium. The silicon-containing fluorinated polymer could be fixed on the surface of polyacrylate nanoparticles due to the formation of the crosslinked network structure. Transmission electron microscopy (TEM) and dynamic light scattering (DLS) analysis indicated that the obtained emulsifier-free core-shell nanoparticles were uniform and possessed narrow size distributions. The core-shell structure and chemical components of the emulsifier-free core-shell nanoparticles were investigated by TEM and Fourier transform infrared (FTIR) spectrometry, respectively. X-ray photoelectron spectroscopy (XPS) analysis and contact angle measurement on the latex films proved the propensity of fluorine and silicon enrichment at film-air interface. In addition, the thermal stability of the latex films was improved with increasing the concentration of fluorine and silicon. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：7241 / 7248
页数：8
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