文献类型：期刊文献

英文题名：Studies of latex blends of natural rubber/poly(methyl methacrylate-co-2-ethylhexyl methacrylate) and their comparison with incompatible natural rubber/poly(methyl methacrylate)

作者：Zheng, Zhaojun[1];Tian, Xiaohui[1];Sun, Jinyu[1];Yuan, Yizhong[1];Xie, Bing[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2015

卷号：57

期号：5

起止页码：613

外文期刊名：POLYMER SCIENCE SERIES A

收录：;EI(收录号：20153001066906);WOS:【SCI-EXPANDED(收录号:WOS:000361449100010)】；

基金：We thank for the financial support by National High Technology Research and Development Program (2009AA035002).

语种：英文

外文关键词：Water absorption - Scanning electron microscopy - Atomic force microscopy - Blending - Fourier transform infrared spectroscopy - Esters - Latexes - Nuclear magnetic resonance spectroscopy

摘要：Poly(methyl methacrylate-co-2-ethylhexyl methacrylate) copolymers with 0.6-49.2 mol% of 2-ethylhexyl methacrylate were synthesized and blended with natural rubber at three different blend ratios (i.e. 5/95, 10/90, 15/85) on the latex stage. Chemical structure of the copolymer was confirmed by FTIR and H-1 NMR spectroscopy. Mechanical strength of the blend (rubber/copolymer) containing 7.76 mol% of 2-ethylhexyl methacrylate showed the higher values than the incompatible blend natural rubber/PMMA. According to water absorption and ATR-FTIR measurements, the amount of dispersed particles of obtained blends on the surface decreases sharply compared to rubber/PMMA blend. Scanning electron microscopy and atomic force microscopy also showed that surface and cross-section morphologies of the studied were more homogeneous than those of incompatible blend. The miscibility of studied blend was further reflected by DSC analysis.