文献类型：期刊文献

中文题名：用哈克流变仪模拟D_3F反应挤出阴离子开环聚合反应

英文题名：Reactive Extrusion of 1,3,5-Trimethyl-1,3,5-Tris(3′,3′,3′-Trifluoropropyl) Cyclotrisiloxane Simulated in Haake Rheometer

作者：蒋蔚[1];高亚娟[1];郑安呐[1];周颖坚[1];许祥[1];胡福增[1]

机构：[1]华东理工大学材料科学与工程学院,上海200237

年份：2008

卷号：21

期号：4

起止页码：417

中文期刊名：功能高分子学报

外文期刊名：Journal of Functional Polymers

收录：CSTPCD;;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：D3F;氟硅聚合物;哈克流变仪;反应挤出;阴离子开环聚合

外文关键词：1,3,5-trimethyl-1,3,5-tris （3＇, 3＇, 3＇-trifluoropropyl） cyclotrisiloxane; fluorosilicone polymer; Haake Rheometer; reactive extrusion; anionic ring-opening polymerization

摘要：采用哈克流变仪模拟1,3,5-三甲基-1,3,5-三(3′,3′,3′-三氟丙基)环三硅氧烷(D3F)阴离子开环聚合的反应挤出试验。通过凝胶渗透色谱法(GPC)测定其绝对分子量,并通过红外光谱(FT-IR)和核磁共振氢谱(1H-NMR)表征其结构。研究表明:在促进剂乙酸乙酯作用下,120℃下反应4 min可得到数均分子量为2.45×105的氟硅聚合物,反应温度、时间对制备氟硅聚合物有一定的影响。
The anionic ring-opening polymerization of 1,3,5-trimethyl-1,3,5-tris-（3＇, 3＇, 3＇-trifluoropropyl） cyelotrisiloxane was conducted in a Haake Rheometer. The fluorosilicone rubber obtained were characterized with GPC and FT-IR, ^1H-NMR. The study shows that polymer of Mn = 2.45 × 10^5 can be obtained at 120 ℃ for 4 min in the presence of ethyl acetate. The effects of relevant process parameters such as temperature and reaction time on the anionic ring-opening polvmerization of D3F were studied as well.