聚氯乙烯-g-聚丙烯酸接枝共聚物的合成和表征  

Synthesis and characterization of PVC-g-polyacrylic acid

作　　者：郭同坤 邱颖 李俊龙 李红春[1] 牛永盛[1] GUO Tongkun;QIU Ying;LI Junlong;LI Hongchun;NIU Yongsheng(College of Chemistry&Pharmacy,Qingdao Agricultural University,Qingdao 266109,China)

机构地区：[1]青岛农业大学化学与药学院,山东青岛266109

出　　处：《聚氯乙烯》2023年第4期4-6,共3页Polyvinyl Chloride

基　　金：国家级大学生创新项目;青岛农业大学大学生创新项目;国家自然基金资助项目(51003051)。

摘　　要：以二(2-苯氧乙基)过氧二碳酸酯为引发剂,将丙烯酸单体接枝到聚氯乙烯上,制备了聚氯乙烯-g-聚丙烯酸接枝共聚物。研究了引发剂浓度、单体浓度、反应温度和时间等因素对接枝率的影响,并采用红外光谱和热重分析仪对产物进行了表征。研究结果表明:可获得接枝率3.08%的接枝共聚物,且接枝共聚物的热稳定性较纯聚氯乙烯提高。A PVC-g-polyacrylic acid graft copolymer was prepared by grafting acrylic monomers onto polyvinyl chloride in the presence of di(2-phenoxyethyl)peroxydicarbonate as an initiator.The effect of various parameters such as initiator concentration,monomer concentration,reaction temperature and reaction time on graft yield was studied.The graft copolymers were characterized by infrared spectroscopy and thermogravimctry.The results showed that a graft copolymer with a grafting rate of 3.08%could be obtained,and the thermal stability of the graft copolymer was improved compared to that of polyvinyl chloride.

关 键 词：聚氯乙烯 丙烯酸 接枝共聚物 接枝率 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]