XIN Xiuqiang, WANG Yanmei, PAN Caiyuan. REVERSIBLE ADDITION-FRAGMENTATION CHAIN TRANSFER POLYMERIZATION OF 2-(DIMETHYLAMINO)ETHYL METHACRYLATE/2-(DIMETHYLAMINO)ETHYL ACRYLATE[J]. Acta Polymerica Sinica, 2005,(3):398-402.
XIN Xiuqiang, WANG Yanmei, PAN Caiyuan. REVERSIBLE ADDITION-FRAGMENTATION CHAIN TRANSFER POLYMERIZATION OF 2-(DIMETHYLAMINO)ETHYL METHACRYLATE/2-(DIMETHYLAMINO)ETHYL ACRYLATE[J]. Acta Polymerica Sinica, 2005,(3):398-402.DOI:
Poly(2-(dimethylamino) ethyl methaerylate (PDMAEMA) and poly(2-(dimethylamino) ethyl aveate (PDMAEA) were prepared by using chain transfer agents (CTA)
eumyl dithiobenzoate (CDB) and 1-phenylethyldithiobenzoate (PEDB) respectively
through reversible addition-fragmentation chain transfer (RAFT) polymerization.The molecular weight and molecular weight distribution of PDMAEMA and PDMAEA.were measured by gel permeation chromatography (GPC) and nuclear magnetic resonance spectrometer(1H-NMR).The results showed the molecular weight distribution of PDMAEMA was narrow when the ECPDB/AIBN and CDB/AIBN as the initiator respectively.But the theoretical number average molecular weight Mn.th was not in good agreement with Mn.NMR and Mn.GPC. It demonstrated that the molecular weight of polymers could not be controlled.Its reason is probably that the balalive of the reversible addition-fragmentation chain transfer is disturbed by unapt match of monomer and CTA.With changing monomer or CTA
the molecular weight of polymers can be controlled.Compared with the CDB/AIBN system
the molecular weight distribution of PDMAEA by using PEDB/AIBN was narrower