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

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• 作者：Zhaojun Zheng ; Xiaohui Tian ; Jinyu Sun ; Yizhong Yuan ; Bing Xie
• 刊名：Polymer Science Series A
• 出版年：2015
• 出版时间：September 2015
• 年：2015
• 卷：57
• 期：5
• 页码：613-621
• 全文大小：1,619 KB
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• 作者单位：Zhaojun Zheng (1)
  Xiaohui Tian (1)
  Jinyu Sun (1)
  Yizhong Yuan (1)
  Bing Xie (1)
  
  1. School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Polymer Sciences
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1555-6107

文摘

Poly(methyl methacrylate-co-2-ethylhexyl methacrylate) copolymers with 0.6-9.2 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 1H 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. The article is published in the original.