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将阴离子疏水缔合丙烯酰胺共聚物P(NaAMC14S-b-AM)与阳离子蠕虫状胶束十六烷基三甲基溴化铵/水杨酸钠(CTAB/NaSal)在水溶液中自组装制备了新型的缔合增粘体.由稳态剪切和动态流变实验结果得出:自组装体系在80℃下仍具有显著的协同增粘效应,其流变行为符合Maxwell模型.同蠕虫状胶束相比,自组装体系的稳态模量G0、力学松弛时间τR和缠结点密度ν都有增加,由此分析缔合体系中两组分间形成了相互缠结的网络结构,在链缠结处共聚物主链上的疏水侧链嵌入到了蠕虫状胶束的内核.
The anionic hydrophobically associating acrylamide copolymer P (NaAMC14S-b-AM) and cationic wormlike micelles cetyltrimethylammonium bromide / sodium salicylate (CTAB / NaSal) were self-assembled in aqueous solution The results show that the self-assembly system has significant synergistic thickener effect at 80 ℃ and its rheological behavior accords with Maxwell’s model.Compared with worm-like micelles Compared with the self-assembled system, the steady-state modulus G0, the relaxation time τR and the density ν of the entangled point all increased. Thus, the entanglement network structure was formed between the two components in the association system. The hydrophobic side chains on the backbone of the copolymer are embedded in the core of the wormlike micelle.