摘要
采取先加碱共聚-共水解的方法合成了孪尾疏水缔合丙烯酰胺/丙烯酸钠/N,N-二己基丙烯酰胺共聚物[P(AM/NaAA/DiC6AM)],用傅里叶变换光谱、1H-核磁共振及容量分析法对其结构进行了表征.反应10 h转化率可达92%,之后增加缓慢.水解度主要受水解时间的影响,受疏水单元摩尔分数的影响较小.还研究了疏水单元摩尔分数、总单体质量浓度、DM质量浓度、(NH4)2S2O8质量浓度、温度、SMR对P(AM/NaAA/DiC6AM)水溶液的表观黏度的影响.
A series of twin-tailed hydrophobically associating water-soluble terpolymers poly(acrylamide/sodium acrylate/ dihexylacrylamide)[P(AM/NaAA/DiC_6AM)]have been synthesized by co-hydrolysis with alkali before micellar copolymeriza- tion.These polymer systems were characterized by using FT-IR、~1IH-NMR and titration analysis.While hydrolytic reagent is NaHCO_3,the hydrolytic degrees are independent on hydrophobic mole fraction but dependent on reaction time.The aqueous so- lution apparent viscosity of P(AM/NaAA/DiC_6AM)increases with the increasing of hydrophobic mole fraction,total monomer mass concentration and DM mass concentration,With the decreasing of SMR,the aqueous solution apparent viscosity of P(AM/ NaAA/DiC_6AM)increases then decreases.It shows that the average sequence length of hydrophobe has remarkable influence on the hydrophobically associative interaction of terpolymers P(AM/NaAA/DiC_6AM).
出处
《现代化工》
CAS
CSCD
北大核心
2004年第z1期105-108,112,共5页
Modern Chemical Industry
基金
中国石油化工集团公司"十五"重大科技攻关项目(P100043)
关键词
孪尾
胶束聚合
水溶性聚合物
疏水缔合
合成
共水解法
twin-tailed
mecellar copolymerization
water-soluble polymer
hydrophobic association
synthesis
co-hydrolysis
