LIU Yan, XIE Hong-quan. COPOLYMERIZATION OF POLYOXYETHYLENE MACROMERS WITH ETHYL ACRYLATE AND CHARACTERIZATION OF THE GRAFT COPOLYMERS[J]. Acta Polymerica Sinica, 1991,(4):444-451.
LIU Yan, XIE Hong-quan. COPOLYMERIZATION OF POLYOXYETHYLENE MACROMERS WITH ETHYL ACRYLATE AND CHARACTERIZATION OF THE GRAFT COPOLYMERS[J]. Acta Polymerica Sinica, 1991,(4):444-451.DOI:
Copolymerization of o-methacryloyl polyoxyethylene macromers with ethyl acrylate (EA) in benzene using AIBN as initiator was studied. The effects of molecular weight of the macromers
charging ratio of the macromer to EA
total monomer concentration and amount of initiator on the grafting efficiency and molecular weight of the copolymers were reported. The highest grafting efficiency can reach above 90% and molecular weight of the copolymers varied from 5×104 to 15×104.Reactivity ratio of EA with the macromer was determined to be 0.83.The graft copolymers were purfied with extractions and the purified products were cha-racterized with IR
1H-NMR
PGC
GPC and membrane osmometry. The average grafting number of the copolymers varied from 2 to 11.