MMA与4-VP共聚物的制备和性能研究

Preparation and Characterization of the Copolymer of 4-vinylpyridine and Methylmethacrylate

由于4-乙烯基吡啶(4-VP)均聚合成的聚电解质的亲水性强和力学性能差,使其应用受到很大的限制。采用自由基共聚法,用甲基丙烯酸甲酯(MMA)对其改性,得到共聚物P(4-VP-MMA),再将共聚物与正溴辛烷进行季铵化反应得到线形的、水不溶聚电解质。对该聚电解质用IR、DSC表征,并检测其拉伸性能和吸水率,效果很好。

Q-PVP is so hydrophilic and weak in strength that its use is limited and needs to be modified. P（4-VP-MMA） which varied mole ratios between 4-vinylpyridine （4-VP） and methylmethacrylate （MMA） was synthesized by means of radical copolymerization with the initiator AIBN. The insoluble and linear pyridinium-type polyelectrolyte was prepared by the reaction of P（4-VP-MMA ） with 1-bromooctane. The resultants were characterized by IR, DSC. The tensile strength and water adsorption of the product membrane increased.