Polyacrylate/silica nanocomposite materials prepared by sol-gel process
Polyacrylate/silica nanocomposite materials prepared by sol-gel process
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溶胶-凝胶法制备聚丙烯酸酯/二氧化硅纳米复合材料
DOI：
10.1016/j.eurpolymj.2007.06.051
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发表时间：
2007-10-01
影响因子：
6
通讯作者：
Zhang, Zhi-Jie
中科院分区：
文献类型：
--
作者：
Ma, Han-Zhong;Hu, Jing;Zhang, Zhi-Jie
采用溶胶-凝胶法原位乳液聚合制备了聚丙烯酸酯/二氧化硅纳米复合材料。研究了不同单体配比、正硅酸乙酯（TEOS）、7-甲基丙烯酰氧基丙基三甲氧基硅烷（Z-6030）、二乙醇胺（DAM）和过硫酸铵（APS）用量对聚丙烯酸酯/二氧化硅纳米复合材料物理力学性能的影响。动态激光散射（DLS）结果表明，聚丙烯酸酯/SiO2乳胶粒的平均粒径（177 nm）比纯聚丙烯酸酯乳胶粒的平均粒径（105.3 nm）大，但与纯聚丙烯酸酯乳胶粒相比，聚丙烯酸酯/SiO2乳胶粒的电位降低。差示扫描量热仪（DSC）分析证实聚丙烯酸酯/纳米SiO2的玻璃化转变温度（T-g = -24 ℃）高于聚丙烯酸酯的玻璃化转变温度（T-g = -36 ℃）。紫外光谱分析表明，与聚丙烯酸酯相比，聚丙烯酸酯/二氧化硅复合材料的紫外吸收性能明显提高。(C)2007爱思唯尔有限公司保留所有权利。
Polyacrylate/silica, nanocomposite was prepared by sol-gel process via in situ emulsion polymerization. The influence of the synthetic conditions, such as the ratio of different monomers and the contents of tetraethoxysilane (TEOS), 7-methacryloxypropyltrimethoxysilane (Z-6030), diethanolamine (DAM) and ammonium persulfate (APS) on the physical mechanical properties of polyacrylate/silica nanocomposite was investigated in details. Dynamics Laser Scattering (DLS) indicated that the average diameter of the polyacrylate/silica latex particles (177 nm) was bigger than that of the pure polyacrylate latex particles (105.3 nm), but the potential of polyacrylate/silica was decreased respectively in contrast to that of the polyacrylate. Differential Scanning Calorimeters (DSC) analysis confirmed that the glass transition temperature of polyacrylate/nanO-SiO2 (T-g = -24 degrees C) was higher than that of polyacrylate (T-g = -36 degrees C). UV analysis showed that the UV absorbency of polyacrylate/silica was improved evidently in contrast to that of polyacrylate. (C) 2007 Elsevier Ltd. All rights reserved.