Photoinduced miniemulsion polymerization
Photoinduced miniemulsion polymerization
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DOI：
10.1007/s00396-010-2190-1
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发表时间：
2010-02
影响因子：
2.4
通讯作者：
Abraham Chemtob;Benjamin Kunstler;C. Croutxé-Barghorn;S. Fouchard
中科院分区：
文献类型：
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作者：
Abraham Chemtob;Benjamin Kunstler;C. Croutxé-Barghorn;S. Fouchard
本文研究了丙烯酸酯单体在细乳液中的自由基光聚合。从封装I型自由基光引发剂（BAPO）的纳米尺寸的丙烯酸酯液滴（<100 nm）开始，UV照射在几分钟后导致形成类似尺寸的聚合物纳米颗粒。本研究涉及该反应的动力学方面和所得聚合物分散体的胶体性质。实时傅里叶变换近红外透射光谱实现连续跟踪快速光聚合过程。此外，光诱导过程的空间分辨率允许通过动态光散射在线监测紫外照射期间细乳液尺寸的演变。
This study describes the radical photopolymerization of acrylate monomers in miniemulsion. Starting from nanosized acrylate droplets (<100 nm) which encapsulate a type I radical photoinitiator (BAPO), UV irradiation led after a few minutes to the formation of polymer nanoparticles of similar size. The present study deals with the kinetics aspects of this reaction and the colloidal properties of the resulting polymer dispersions. Real-time Fourier transform near-infrared spectroscopy in transmission was implemented to follow continuously the fast photopolymerization process. In addition, the spatial resolution of the photoinduced process allowed the online monitoring of the evolution of the miniemulsion size during the UV irradiation through dynamic light scattering.