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以马来酸酐和苯乙烯为原料合成二元共聚物SMA(maleic anhydride-styrene),其分别与油胺和十八醇反应,制备合成2种不同结构的梳状聚合物NSMA(Oleamide-SMA)和OSMA(Octadecanol-SMA)。采用红外光谱分析、凝胶色谱分析和热失重分析,研究了聚合物的结构和稳定性,并进行了梳状聚合物降凝的机理研究。研究结果表明,官能团上侧链长度和数目会影响聚合物添加剂的降凝能力;在添加剂分子结构中引入π键和氢键缔合作用可以改善添加剂的降凝效果;聚合物的分子量和添加浓度影响降凝效果。同时分析结果与实验评价基本一致,OSMA和NSMA两种梳状聚合物具有潜在的工业降凝应用价值。
Maleic anhydride-styrene (SMA) was synthesized by copolymerization of maleic anhydride-styrene (SMA) with oleyl amine and octadecanol respectively to prepare two different structures of polyamide-NSMA (Oleamide-SMA) And OSMA (Octadecanol-SMA). Infrared spectroscopy, gel chromatography and TG analysis were used to study the structure and stability of the polymer. The mechanism of the polymer coagulation was also investigated. The results show that the length and number of functional groups on the side chain affect the ability of polymer additives to reduce the condensation ability. The introduction of π bond and hydrogen bonding in the molecular structure of additives can improve the effect of the additive on the condensation degree. The molecular weight and concentration of the polymer Affect the effect of condensation. At the same time, the analytical results are in good agreement with the experimental evaluation. OSMA and NSMA comb polymers have the potential value of industrial coagulation reduction.