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    孪尾疏水缔合三元共聚物的粘度行为:水解度的影响

    Aqueous Solution Viscosity Behaviors of Twin-Tailed Hydrophobically Associating Water-soluble Terpolymers:The Influences of Hydrolysis Degree

    • 摘要: 以十二烷基硫酸钠(SDS)为表面活性剂,利用氧化还原体系、采用前加碱共聚-共水解的方法制备了孪尾疏水缔合水溶性三元共聚物聚(丙烯酰胺/丙烯酸钠/N,N-二己基丙烯酰胺)P(AM/NaAA/DiC6AM),研究了P(AM/NaAA/DiC6AM)稀溶液及亚浓溶液的性能。随理论水解度的增加,P(AM/NaAA/DiC6AM)水溶液的特性粘数η增加,Huggins常数KH减小。P(AM/NaAA/DiC6AM)水溶液的表现粘度随理论水解度的增加而增加,随温度、剪切速率的增加而降低,随剪切速率的增加开始时降低较快而后变化较小。P(AM/NaAA/DiC6AM)在盐溶液中随NaCl、CaCl2质量浓度的增加,出现盐增粘现象;理论水解度不同的P(AM/NaAA/DiC6AM)与SDS水溶液的表现粘度在wSDS=0.050~0.400g/L范围内随SDS质量浓度的变化差别不大。

       

      Abstract: A series of twin-tailed hydrophobically associating water-soluble terpolymers Poly(acrylamide/sodium acrylate/N,N-dihexylacrylamide)\P(AM/NaAA/DiC_6AM)\ was synthesized by the way of radical micellar copolymerization with sodium dodecyl sulfate as surfa

       

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