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首页> 外文期刊>Journal of Applied Polymer Science >Free-radical emulsion copolymerization of styrene with butadiene and vinyl triethoxysilane with a cumene hydroperoxide redox initiator
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Free-radical emulsion copolymerization of styrene with butadiene and vinyl triethoxysilane with a cumene hydroperoxide redox initiator

机译：用丙烯和乙烯基三乙氧基硅烷与丙烯氢氧化钠氧化还原引发剂的自由基乳液共聚

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摘要

The emulsion free-radical copolymerization of vinyl triethoxysilane (VTES) with styrene (St) and butadiene (Bd) was initiated by cumene hydroperoxide and ferrous sulfate at 0 degrees C. The effects of VTES on the copolymerization conversion, reaction time, gel content, latex particle size, thermal stability, and mechanical properties were thoroughly investigated. The success of this reaction was confirmed by the peaks attributed to both SiOSi groups at 1065 cm(-1) and the SiOC bond at 1046 cm(-1). A kinetics analysis showed that the conversion decreased with increasing VTES mass in the monomer feed. Compared with that in the St-Bd copolymer, the latex particle size increased slightly with increasing VTES mass. The Mooney viscosity and gel content results show that a large fraction of precrosslinking molecular chains was formed in the rubber particles. The thermogravimetric analysis results indicate that the thermal stability of the copolymers increased with increasing VTES concentration. The 300% modulus and tensile strength of the St-Bd-VTES copolymer increased with the mass of VTES at first and then decreased after 3 phr VTES, whereas the elongation at break decreased with increasing VTES mass. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47896.
机译：用苯乙烯（ST）和丁二烯（BD）的乙烯基三乙氧基硅烷（VTE）的乳液自由基共聚通过丙烯氢氧化烯和硫酸铁硫酸铁，硫酸亚铁在0℃下引发。VTE对共聚转化，反应时间，凝胶含量的影响，液晶颗粒尺寸，热稳定性和机械性能彻底研究。通过归因于1065cm（-1）的SISI基团的峰确认该反应的成功，并在1046cm（-1）下的SiOC键。动力学分析表明，随着单体饲料中的vtes质量增加，转化率降低。与在ST-BD共聚物中相比，胶乳颗粒尺寸随着越来越多的vtes质量而略有增加。门尼粘度和凝胶含量结果表明，在橡胶颗粒中形成大部分的预旋转分子链。热重分析结果表明，共聚物的热稳定性随着VTE浓度的增加而增加。 ST-BD-VTES共聚物的300％模量和拉伸强度随着vtes的质量而增加，然后在3phr vtes后降低，而断裂的伸长率随着越来越多的vtes质量而降低。 （c）2019 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019,136,47896。

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  • 来源
    《Journal of Applied Polymer Science》 |2019年第34期|共7页
  • 作者

    Yin Changjie; Zhang Qiuyu; Zhang Zhuorui; Zhu Chengyuan; Liu Jianxun;

  • 作者单位

    Northwestern Polytech Univ Shaanxi Key Lab Macromol Sci &

    Technol Xian Key Lab Funct Organ Porous Mat Sch Sci Key Lab Space Appl Phys &

    Chem Minist Educ Dept A Xian 710072 Shaanxi Peoples R China;

    Northwestern Polytech Univ Shaanxi Key Lab Macromol Sci &

    Technol Xian Key Lab Funct Organ Porous Mat Sch Sci Key Lab Space Appl Phys &

    Chem Minist Educ Dept A Xian 710072 Shaanxi Peoples R China;

    Northwestern Polytech Univ Shaanxi Key Lab Macromol Sci &

    Technol Xian Key Lab Funct Organ Porous Mat Sch Sci Key Lab Space Appl Phys &

    Chem Minist Educ Dept A Xian 710072 Shaanxi Peoples R China;

    Northwestern Polytech Univ Shaanxi Key Lab Macromol Sci &

    Technol Xian Key Lab Funct Organ Porous Mat Sch Sci Key Lab Space Appl Phys &

    Chem Minist Educ Dept A Xian 710072 Shaanxi Peoples R China;

    Northwestern Polytech Univ Shaanxi Key Lab Macromol Sci &

    Technol Xian Key Lab Funct Organ Porous Mat Sch Sci Key Lab Space Appl Phys &

    Chem Minist Educ Dept A Xian 710072 Shaanxi Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 高分子化合物工业（高聚物工业）;
  • 关键词

    elastomers; mechanical properties; radical polymerization; thermal properties; thermogravimetric analysis (TGA);

    机译：弹性体;机械性能;自由基聚合;热性质;热重分析（TGA）;

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