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使用荧光探针技术,跟踪了疏水改性聚丙烯酰胺(HMPAM)在溶液中的变化过程,对HMPAM在溶液中的聚集行为进行了研究。同时也对部分水解聚丙烯酰胺(HPAM)作了对比研究。发现HMPAM在溶液中具有独特的变化规律:由疏水缔合形成超分子聚集体,再由超分子聚集体形成布满整个溶液空间网络结构的过程。并使用粘度法对其宏观流变性能进行了研究,发现两种手段所得的结果具有较好的对应关系。
Fluorescence probe technology was used to trace the change of HMPAM in solution and the aggregation behavior of HMPAM in solution was investigated. At the same time, some hydrolyzed polyacrylamide (HPAM) were compared. It is found that HMPAM has a unique variation in solution: the formation of supramolecular aggregates by hydrophobic association and then the formation of a network structure filled with supramolecular aggregates throughout the solution space. The macroscopic rheological properties of the composites were studied by using the viscosity method. It was found that the results obtained by the two methods had a good correspondence.