含氟丙烯酸酯AFSN及其与丙烯酰胺、丙烯酸的共聚物PAMF的合成与共聚物水溶液粘度性能  

Synthesis of Fluorine-Containing Acrylate AFSN and Copolymers PAMF with High Heat Resistance, Salt Tolerancy and Viscosifying Capacity in Aqueous Solution

作　　者：王云芳[1] 孔瑛[1] 杨金荣[1] 辛伟[1] 冯志强[1] 

机构地区：[1]石油大学(华东)化学化工学院,山东东营257061

出　　处：《油田化学》2004年第4期333-335,342,共4页Oilfield Chemistry

基　　金：国家科技部"十五"攻关项目(2002BA312B 05)资助课题。

摘　　要：将杜邦公司的商品氟表面活性剂ZonylFSN(含全氟烷基的脂肪醇)与丙烯酰氯(AC)等在低温下反应,合成了含氟丙烯酸酯AFSN,按产物收率和纯度确定最佳摩尔比FSN∶AC=1∶1 05,最佳反应时间为11～12小时。用IR谱表征了AFSN的结构。将AFSN、AM、AA在水溶液中共聚,得到了含氟疏水缔合水溶性聚合物PAMF 3和PAMF 5(混合单体总质量中AFSN分别占0 3%和0 5%)。PAMF共聚物在水溶液中的增粘性、抗盐性和耐温性远高于超高分子量HPAM。室温下浓度为1 5g/L的HPAM、PAMF 5、PAMF 3水溶液不含盐时粘度分别为520、690、530mPa·s,NaCl浓度为15g/L时粘度分别为41、410、325mPa·s,粘度下降率分别为92%、40%、38%。1 5g/LPAMF 3水溶液在90℃时保有的粘度高达300mPa·s,而1 5g/LHPAM水溶液在90℃时粘度为14mPa·s。PAMF共聚物可望用作耐温抗盐的驱油聚合物。图5参9。An F-containing acrylate, AFSN, is prepared by the way of low temperature reaction of duPond's commercial surfactant Zonyl FSN, aliphatic alcohols with perfluoroalkyl functionality, with acryloyl chloride (AC) at the presence of proper reagents and the optimal AC to FSN molar ratio is established as 1.05 and the optimal reaction time -11-12 hrs for the highest yield and purity of reaction product obtained. The structure of AFSN is identified IR-spectrometrically. By copolymerizing AM, AA, and AFSN in aqueous solution, F-containing water soluble hydrophobically associating tercopolymers PAMF-3 and -5 are obtained with mass fraction of AFSN in mixed monomer feed being of 0.003 and 0.005. The viscosifying capacity, salt tolerancy and heat resistance of tercopolymers PAMF-3 and -5 are significantly higher than that of ultrahigh molar mass HPAM. The viscosity of 1.5 g/L salt free aqueous solutions of HPAM, PAMF-5, and PAMF-3 at 20℃ is of 520, 690, and 530 mPa·s and at the presence of 15 g NaCl per liter solution-41, 410, and 325 mPa·s, that is, is decreased by 92%, 40%, and 38%, respectively. 1.5 g/L aqueous PAMF-3 solution maintains at 90℃ viscosity as high as 300 mPa·s in contract with 14 mPa·s for HPAM aqueous solution of the same concentration at the same temperature. Tercopolymers PAMF are prepared as EOR polymers for use in high temperature and high salinity reservoirs.

关 键 词：含氟丙烯酸酯 水溶液 共聚物 丙烯酰胺 粘度性能 合成 疏水缔合水溶性聚合物 氟表面活性剂 最佳反应时间 HPAM NaCl浓度 超高分子量 驱油聚合物 杜邦公司 丙烯酰氯 全氟烷基 产物收率 混合单体 耐温抗盐 FSN 脂肪醇 摩尔比 

分 类 号：TQ325.7[化学工程—合成树脂塑料工业] O647.2[理学—物理化学]