聚氧乙烯(PEO)、丙烯酰胺与甲基丙烯酸甲酯三元共聚物的合成与表征

SYNTHESIS AND CHARACTERIZATION OF TRI-COPOLYMER POLY(ETHYLENE OXIDE)MACROMONOMER、ACRYLAMIDE AND METHYL METHACRYLATE

以THF为溶剂,磺胺嘧啶钠为引发剂,甲基丙烯酰氯为封端剂,阴离子聚合合成了一类含双键端基的聚氧乙烯(PEO)大单体;在此基础上,考察了此类大单体与丙烯酰胺、甲基丙烯酸甲酯的自由基共聚反应,合成了一类新型PMMA-PAM-PEO三元共聚物,此物在常温下易于成膜;大单体及共聚物经纯化后,用IR、1H-NMR、VPO、GPC等进行了表征,证实了产物有预期结构.

Sodium sulfadiazine, which adopted as anion initiator for EO's ring-opening polymerization, has successfully initiated EO's polymerization.A new kind of PEOs macromonomer was synthesized with methacrylic chloride as end capping reagent. On the base of which, copolymerization of PEO macromonomer with acrylamide(AM)and methy1 methacrylate using AIBN as initiator was sequentially explored, the product of PAM-PMMA-PEO copolymer was obtained. After purified, macromonomer and copolymer were characterized with IR,1H-NMR, VPO andGPC Instrument.The anticipated structure on products was convinced. Simultaneously the corresponding conditions of polymerization were studied.