摘要
采用自由基胶束聚合法制备了丙烯酰胺/甲基丙烯酸十八酯/2-甲基-2-丙烯酰胺基丙磺酸三元疏水缔合共聚物(HAPAM),系统研究了HAPAM水溶液的流变行为。结果表明,在聚丙烯酰胺大分子主链上引入阴离子基团和疏水基团后。阴离子的电粘效应与疏水基团的疏水缔合作用相互协同作用,使得共聚物水溶液的粘度明显提高;盐溶液对疏水缔合作用的增强效应与阴离子基团的耐盐性相互结合,使HAPAM水溶液的抗盐性能得以明显提高;HAPAM在水溶液中可以有效的形成大量疏水微区,因而具有较好的耐温耐盐和增粘性能。
The series of hydrophobieally associating polyacrylamides（AM/AMPS/SMA） were prepared by free radical micellar copolymerization. The results showed that after incorporating anions and hydrophobic groups at the same time in the backbone of polyacrylamide, the viscosity of the copolymer aqueous solution will increase obviously, under coordination of electric viscosity of anions and hydrophobic association property of hydrophobic group, and the salt resistance of the copolymer will increase evidently, under the combining of strengthening hydrophobic association by salt and greater tolerating salt of anions. And the hydrophobically associating copolymer was provided with good temperature tolerance property, salt tolerance property and thicken properties due to the formation of lots of hydrophobically microdomain in aqueous solution.
出处
《应用化工》
CAS
CSCD
2008年第9期1025-1028,共4页
Applied Chemical Industry
基金
吉林省重点科技发展项目(20070311)
关键词
疏水缔合
胶束共聚
表观粘度
耐温抗盐
hydrophobie association
miceUar copolymerization
apparent viscosity
temperature and saltresistant
