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采用介观动力学分子模拟(Mesodyn)和耗散颗粒动力学(DPD)分子模拟与流变等实验技术相结合的方法,研究了pH/无机盐敏感聚合物聚丙烯酸PAA在水溶液中的环境响应行为,考察了聚合物浓度、溶液离子强度、聚合物表面电荷对PAA相行为的影响.实验结论与模拟结果符合得很好,对照分析给出了聚丙烯酸的环境响应机制,为设计和应用环境敏感的智能体系提供指导和理论依据.
The environmental response of pH / inorganic salt-sensitive polyacrylic acid PAA in aqueous solution was investigated by the combination of Mesodyn and DPD molecular simulations and rheological techniques. Behavior of PAA were investigated.The effects of polymer concentration, solution ionic strength and polymer surface charge on PAA phase behavior were investigated.The experimental results are in good agreement with the simulation results, and the environmental response mechanism of polyacrylic acid was given by comparison and analysis, Sensitive intelligence system to provide guidance and theoretical basis.