P(AM-NVP-DMDA)疏水缔合水溶性共聚物的研究
Study on the P(AM-NVP-DMDA) Hydrophobically Associating Water-Soluble Copolymer
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摘要: 采用自由基水溶液共聚合法制备了P(AM-NVP-DMDA)疏水缔合水溶性共聚物。对共聚物的溶液性能进行了研究,包括盐效应、粘温关系、流变性能、热稳定性、与碱、表面活性剂的相互作用、稀溶液性质等。共聚物分子中由于引入了较多的疏水基团而具有较强的疏水缔合效应,在聚合物浓度较低时具有较高粘度。NVP结构单元的引入可适当提高共聚物溶液的热稳定性。对共聚物溶液的电镜分析结果表明,在其水溶液中存在着微相分离结构,它对共聚物溶液的增粘起着重要作用。Abstract: A new kind of hydrophobically associating water-soluble copo1ymer P(AM-NVP-DMDA) was synthesized by free radical copolymerization. Synthesis, structure and solution properties of P(AM-NVP-DMDA) terpolymer were studied including its electrolyt