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疏水缔合型聚丙烯酰胺(HAPAM)和常规聚丙烯酰胺(HPAM)的增黏机理

LI Meirong,LIU Zhi,CAO Xulong,ZHANG Benyan,ZHANG Jichao,SUN Fanglong

Shiyou Xuebao, Shiyou Jiagong/Acta Petrolei Sinica (Petroleum Processing Section)（2012）

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Abstract
疏水缔合型聚丙烯酰胺(HAPAM)与常规聚丙烯酰胺(HPAM)相比具有显著的高效增黏性、耐盐性和理想的耐温稳定性.通过测定HAPAM溶液的电导率和黏度,得到聚合物的临界胶束质量浓度为450 mg/L.通过红外光谱和核磁共振分析,可知HAPAM侧链含有长的烷基链,并且侧链含有双键,这些构成疏水基团,起到疏水缔合作用.扫描电镜观测结果从形态上直接说明了HAPAM和HPAM的增黏和降黏机理,HPAM溶液的表观黏度主是由非结构黏度ηn构成,HAPAM溶液黏度由非结构黏度ηn和结构黏度ηs共同构成.
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Key words
Hydrophobically associating polyacrylamide (HAPAM),IR,NMR,Polyacrylamide (HPAM),SEM
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