共聚物PVA—MA—PEGA的表面活性研究

对具有一定表面活性的聚乙烯醇（ＰＶＡ）与丙烯酸甲酯（ＭＡ）和丙烯酸聚乙二烯醇（ＰＥＧＡ）共聚产物的临界胶束浓度（ＣＭＣ），表面张力和界面张力进行了研究，并对共聚物与ＯＰ系列低分子表面活性剂的相互作用进行了探讨。实验结果表明：ＰＶＡ－ＭＡ－ＰＥＧＡ表面活性剂随着亲油单体含量的增加，共聚物分子的疏水性增加，ＣＭＣ值下降；高分子表面活性剂与ＯＰ１０复配后其最小表面张力，界面张力分别为３０．６ｍＮ／ｍ，０

Study on the Surface Activity of the Copolymer Surfactant PVA MA PEGA

The critical micelle concentration (CMC), surface tension and interfacial tension of a copolymer are investigated. The copolymer is synthesized by the copolymerization of polyvinyl alcohol (PVA), methyl acrylate (MA) and polyethylene glycol acrylates (PEGA) in aqueous solution and has a certain surface activity. The interactions between the polymer and the OP series low molecular surfactant are also discussed. It is found that with the increase of the content of the hydrophobic monomers, the hydrophobicity of the polymer molecules increases and the value of CMC decreases. When the copolymer surfactants are compounded with low molecular non ionic surfactant OP 10 , the system achieves the minimum surface tension 30.6 mN/m , and the minimum interfacial tension 0.36 mN/m respectively.