Synthesis and characterization of temperature-sensive polymer end-functionalized with porphyrin
End-functionalized polyN-isopropylacrylamide (ZnMHTPP-PAM)with zinc-porphyrin was synthesized by atom transfer radical polymerization (ATRP).A asymmetrical 5-(4-(2-bromopropoxy) 10,15,20-phenyl)- 21H,23Hzinc( II)porphyrin(ZnMHTPP -Br) as the initiator,and CuBr/tris(2-dimeoeth-yl)amine(Me6TREN) as the catalyst system were polymerized to obtain ZnMHTPP-PAM.The structures of the target product were characterized using FT-IR and 1H NMR.The polydispersity index (PDI) was obtained by gel permeation chromatography (GPC).The molecular weight distribution was narrow and the polymerization was well controlled.The target polymer exhibited the photophysical property,thermosensitivity.The lower critical solution temperatures (LCST) for the aqueous solutions of target polymer showed increased value as compared to that of NIPAM homopolymer with the increment of the molecular weight,which was arose from the incorporation of the hydrophobic porphyrin at the end of the chain.
poly N-isopropylacrylamid porphyrin atom transfer radical polymerization photocatalyst
Chang ling Liu Qian Duan
School of Materials Science and Engineering, Changchun University of Science and Technology;Material School of Materials Science and Engineering, Changchun University of Science and Technology Changchu
国际会议
秦皇岛
英文
39-42
2015-09-18（万方平台首次上网日期，不代表论文的发表时间）