PHOTO-INDUCED GRAFT POLYMERIZATION OF ACRYLAMIDE ON POLYPROPYLENE MEMBRANE SURFACE IN THE PRESENCE OF DIBENZYL TRITHIOCARBONATE  

作　　者：Qian Yang Jing Tian Zhi-kang Xu 

机构地区：[1]Institute of Polymer Science, and Key Laboratory of Macromolecule Synthesis and Functionalization （Ministry of Education） Zhejiang University, Hangzhou 310027, China

出　　处：《Chinese Journal of Polymer Science》2007年第2期221-226,共6页高分子科学（英文版）

基　　金：This work was financed by the National Natural Science Foundation of China(No. 20474054).

摘　　要：Ultraviolet （UV）-induced graft polymerization of acrylamide （AAm） on polypropylene substrates was successfully conducted using dibenzyl trithiocarbonate （DBTTC） as photoinitiator. It was confirmed by chemical analysis and surface morphology observation with attenuated total reflectance Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and scanning electron microscopy. A possible mechanism for this graft process was presented, which suggested that, under UV irradiation, the C： S bond in DBTTC could split and abstract a hydrogen from the polypropylene surface and a surface free radical was then formed, and initiated the graft polymerization of AAm.Ultraviolet （UV）-induced graft polymerization of acrylamide （AAm） on polypropylene substrates was successfully conducted using dibenzyl trithiocarbonate （DBTTC） as photoinitiator. It was confirmed by chemical analysis and surface morphology observation with attenuated total reflectance Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and scanning electron microscopy. A possible mechanism for this graft process was presented, which suggested that, under UV irradiation, the C： S bond in DBTTC could split and abstract a hydrogen from the polypropylene surface and a surface free radical was then formed, and initiated the graft polymerization of AAm.

关 键 词：Graft polymerization Surface modification ACRYLAMIDE TRITHIOCARBONATE UV. 

分 类 号：O633.22[理学—高分子化学]