【摘要】 通过丙烯酰胺 (AM)、丙烯酸 (AA)与甲基丙烯酰氧乙基二甲基辛基溴化铵 (ADMOAB)共聚 ,合成了疏水化水溶性共聚物 (HAPAM)。考察了HAPAM的组成、质量浓度及无机盐对其水溶液黏度行为的影响。发现组成对黏度有直接影响 ,水溶液黏度随共聚物的质量浓度增加而增大并存在临界缔合质量浓度 ρ ,ρ 与其组成紧密相关。结果表明 :由于在聚合物中引入了疏水结构及两性离子结构 ,这类聚合物表现出较好的抗盐性能更多还原

【Abstract】 Hydrophobically associated polyacrylamide(HAPAM) of acrylamide(AM) with acrylic acid(AA) and methacryloxyethyldimethyloctylammonium bromide(ADMOAB) was prepared.Effects of concentration and structure of HAPAM and added salt on the viscosity of aqueous solution were investigated.The results indicated that,as both the hydrophobic and amphoteric structures were introduced into the polymer molecular,the aqueous polymer solution showed enhanced intermolecular association and good salt tolerance.更多还原