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OALib Journal期刊
ISSN: 2333-9721
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丙烯酸酯有机硅共聚物的合成、表征及耐热性研究
Keywords: 3-甲基丙烯酰氧丙基三甲氧基硅烷,溶液聚合,丙烯酸酯有机硅共聚物,耐热性
Abstract:
？以3-甲基丙烯酰氧丙基三甲氧基硅烷（硅烷偶联剂kh-570）为“桥梁”，用溶液聚合法分三步反应合成了一种新型的丙烯酸酯有机硅共聚物。ft-ir、1h-nmr鉴定了丙烯酸酯有机硅共聚物的分子结构。所得树脂的mw＝43748，多分散系数为2.32。虽然丙烯酸酯改性的有机硅树脂比有机硅树脂在800℃时的质量保持率有所降低，但起始分解温度均有所提高。当丙烯酸甲酯质量分数为20%和40%时，丙烯酸酯改性的有机硅树脂起始分解温度分别比有机硅树脂提高了13℃和55℃。
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