| 疏水缔合聚合物的合成与溶液性能评价 |
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| 引用本文： | 陈馥,;王春龙,;常李博.疏水缔合聚合物的合成与溶液性能评价[J].宁夏石油化工,2014(5):95-99. |
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| 作者姓名： | 陈馥 ;王春龙 ;常李博 |
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| 作者单位： | [1] 西南石油大学化学化工学院,四川成都610500; [2] 中石化河南油田石油工程技术研究院,河南南阳473000 |
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| 摘 要： | 以二烯丙基甲基十六烷基溴化铵（C16DMHB）为疏水单体,与丙烯酰胺（AM）和2-丙烯酰胺基-2-甲基丙磺酸（AMPS）在水溶液中通过自由基聚合合成了疏水缔合聚合物,采用红外光谱对合成的聚合物进行了结构表征.最佳反应条件为：疏水单体C16DMHB的摩尔含量为0.4％,AMPS的摩尔含量为15％,单体总质量为20％,引发剂用量为2.5％（以单体的总质量计）最佳反应温度为45℃,最佳pH值为7～9.研究表明,聚合物的临界缔合浓度在1.8 g/L左右,扫描电镜表征了溶液的微观结构,溶液表观粘度随温度升高而降低,表现剪切稀释性.
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| 关 键 词： | 疏水缔合 疏水单体 表观粘度 剪切 |
Synthesis and solution properties of hydrophobically associating polymer |
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| Affiliation: | CHEN Fu, WANG Chunlong, CHANG Libo (1.College of Chemistry ＆ Chemical Engineering,Southwest Petroleum University, Chengdu Sichuan 610500, China; 2.Petroleum Engineering Technology Research Institute of Sinopec He nan Oilfield, Nanyang Henan 473000, China) |
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| Abstract: | A hydrophobically associating copolymer was synthesized by free radical copoly- merization in aqueous solution using AM AMPS and C16DMHB as monomers. The structure of the polymer was determined by FT-IR. The optimal reaction conditions were that the mo- lar ratio of AM, AMPS and C16DMHB was 84.6：15：0.4, the total monomer concentration in water was 20 % （w/w） and the initiator concentration was 0.25 % （w/w） relative to the monomer feed,the temperature was 45 ~C and the pH ranged from 7 to 9. The scanning electron microscopy（SEM） was used to study the network structure. And all the results show that the critical associating concentration appeared when the mass concentration was close to 1.8 g/L. The viscosity declined slowly with temperature rising and the solution exhibited shear thinning behavior. |
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| Keywords: | hydrophobic association hydrophobic monomer shear resistance apparent vis-cosity |
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