摘要
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=43 748,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℃。
A novel acrylate -silicone copolymer was prepared via three steps by solution polymerization,using 3- methacryloxypropyl propyl trimethoxy silane （silane coupling agent KH -570 ）as a ＂bridge＂. Its structure was chatacterized by FF - IR and 1H - NMR spectroscopy. The Mw of the eopolymer is 43 748 and its polydispersity is 2. 32. Although the residual weight of acrylate modified silicone resin at 800 ℃is lower than that of silicone resin, its initial decomposition temperature is higher than that of silicone resin. When the mass percentage of methacrylate monomer is 20% and 40%, the initial decomposition temperature of acrylate modified silicone resin were increased by 13 ℃ and 55 ℃ respectively, compared with that of silicone resin.
出处
《涂料工业》
CAS
CSCD
北大核心
2010年第8期4-7,共4页
Paint & Coatings Industry
