含膦酸基两性离子共聚物的合成和性能.docx

含膦酸基***离子共聚物的合成及性能
苟绍华1,2,费玉梅1,2,张勤1,2,罗浩1,2,罗威1,2,王婷婷1,2,谢文超3
(,四川成都 610500;,四川成都 610500;,宁夏银川750005)
摘要:以丙烯酰***(AM)、丙烯酸(AA)、N-(3-***丙烯酰***基丙基)-N,N-二***十六烷基溴化铵(NADA)以及1-二甲***基烯丙基膦酸(DMAAPA)为原料,制备了一种水溶性***离子共聚物驱油剂(ANND),对其进行了FTIR结构表征,考察了NADA与DMAAPA的加量和配比、引发剂加量、温度对共聚物特性黏数的影响,探究了共聚物的耐盐、抗温、流变等性能。结果表明:聚合物ANND具有良好的水溶性;在相同条件下,与HPAM溶液进行对比,共聚物ANND溶液在剪切速率500 s- mPa·s, mPa·s;当温度为100 ℃,剪切速率为170 s-1时, mPa·s, mPa·s;在80 ℃下老化10 d后,其黏度保留率为38%,高于同等条件下HPAM溶液的17%;在抗盐性实验中,2000 mg/L共聚物ANND溶液在质量浓度为30000 mg/L的NaCl,2000 mg/、 mPa·s,、 mPa·s。在模拟驱油实验中,%,与水驱相比,%;与HPAM相比,%。
关键词:***离子共聚物;膦酸;表观黏度;耐温抗盐
中图分类号:TE357 文献标识码:A
Synthesis and Properties of Phosphate-Containing
Zwitterionic Copolymer
GOU Shao-hua1,2, FEI Yu-mei1,2, ZHANG Qin1,2, LUO Hao1,2,
LUO Wei1,2, Wang Ting-ting, XIE Wen-chao
(1. School of Southwest Petroleum University, Sichuan Provincial Key Laboratory of Oil & Gas Field Applied Chemistry Chengdu 610500, Sichuan, China; 2. Southwest Petroleum University, Chemistry and Chemical Engineering, Chengdu 610500, Sichuan, China, 3. CNPC Chang qing pany Oil Production Plant , Yinchuan 750005, Ning Xia)
Abstract: The water-soluble zwitterionic copolymer (ANND) was synthesized by acrylamide (AM), acrylic acid (AA), N-(3-methacrylamidopropyl)-N,N-dimethylheptadecan-1-aminium bromide (NADA) and phosphate group-containing monomer 1-dimethylaminoallyl phosphoric acid (DMAAPA). And then, the copolymer was characterized by IR, and the properties (salt tolerance, temperature resistant, rheology etc.) of it were studied. The results showed that the apparent viscosity of 2000 mg/L copolymer solution was mPa·s at 100 ℃ and shear rates of 170 s-1, and mPa·s at 500 s-1 in 25 ℃. Furthermore, to study the aging properties of copolymer, it has been kept in water bath at