| 反应性有机硅单体结构对硅-丙乳液共聚物性能影响的研究 |
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| 引用本文： | 龚兴宇,范晓东.反应性有机硅单体结构对硅-丙乳液共聚物性能影响的研究[J].西北工业大学学报,2002,20(4):616-619. |
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| 作者姓名： | 龚兴宇 范晓东 |
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| 作者单位： | 西北工业大学,化工系,陕西,西安,710072 |
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| 摘 要： | 研究表明：有机硅反应单体的分子结构对硅－丙乳液共聚物的物理性能有明显的影响。通过选用水解基团相同但反应活性基团不同的有机硅单体，乙烯基三乙氧基硅烷和γ－甲基丙烯酰氧基丙基三乙氧基硅烷，与丙烯酸类单体进行乳液共聚，合成了系列不同的硅－丙改性乳液。利用红外光谱对共聚物进行了结构表征，DSC测定了聚合物玻璃化温度（Tg），研究了有机硅单体结构及用量对共聚物膜力学性能及吸水率的影响。
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| 关 键 词： | 乙烯基三乙氧基硅烷 γ－甲基丙烯酰氧基丙基三乙氧基硅烷 分子结构 物理性能 丙烯酸树脂 改性处理 反应性有机硅单体 硅－丙乳液共聚物 |
| 文章编号： | 1000-2758(2002)04-0616-04 |
| 修稿时间： | 2001年10月15 |
Influence of Molecular Structure and Reactivity of Organosilicon on Physical Properties of Acrylate Based Copolymers |
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| Gong Xingyu,Fan Xiaodong.Influence of Molecular Structure and Reactivity of Organosilicon on Physical Properties of Acrylate Based Copolymers[J].Journal of Northwestern Polytechnical University,2002,20(4):616-619. |
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| Authors: | Gong Xingyu Fan Xiaodong |
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| Abstract: | As part of a contract, we had to study the influence of molecular structure and reactivity of organosilicon on physical properties of acrylate based copolymers. Section 1 explains how we copolymerized acrylate with two organosilicone monomers: ethyl triethoxysilane and 3-(triethoxysilyl)propyl methacrylate. Section 2 summarizes and discusses the results of research. IR(infrared spectrum)analysis, given in Fig.1, shows copolymer structure and chain composition. DSC(differential scanning calorimetry)thermograph, given in Fig.2, characterizes the glass transition temperature of copolymer. Table 2 gives the strain at break and tensile strength for copolymers made with seven different emulsions A,B,C,D,E,F and G. Fig.4 shows variation of hydroscopicity with time for films of copolymers made from emulsions A,B,C,D,E,F, and G. |
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| Keywords: | ethyl triethoxysilane 3-(triethoxysilyl)propyl methacrylate |
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