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Synthesis of End-functional and Mid-functional Temperature-responsive Poly (N,N-diethyl-acrylamide) by ATRP
作者:Yue Wang, Nai-pu He*, Zhen-wu
关键字:Atom transfer radical polymerization, Poly(N, N-ethyl-acrylamide), Temperature-responsive
论文来源:期刊
具体来源:Acta Polymerica Sinica
发表时间:2017年

Two types of atom transfer radical polymerization (ATRP) initiators containing disulfide pyridine structure were synthesized and characterized by 1H-NMR. The results revealed that disulfide pyridine was successfully introduced to the end or the middle of the ATRP initiator molecule. N,N-diethyl-acrylamide (DEAAm) was initiated by the ATRP initiators using ATRP to prepare the end-functional (end-functional pDEAAm) and the middle-functional poly(N,N-diethyl-acrylamide) (mid-functional pDEAAm), respectively. Both the end- and mid-functional pDEAAm were characterized by 1H-NMR and gel permeation chromatography (GPC). 1H-NMR results showed that disulfide pyridine was successfully introduced into the end-group of pDEAAm chain to form theend-functional pDEAAm or the middle of the chain of pDAAm to give the mid-functional pDEAAm, respectively. GPC results showed that the molecular weight of the end-functional pDEAAm and the mid-functional pDEAAm with narrow distribution was controlled by ATRP. Polydispersity index (PDI) of the end-functional pDEAAm was 1.21, an