LLDPE/SMA共混膜表面接枝PEG的研究  

GRAFTING OF PEG400 ONTO THE SURFACE OF LLDPE/SMA FILM

作　　者：陈谷峰[1] 张艺[1] 祝亚非[2] 许家瑞[1] 

机构地区：[1]中山大学化学与化学工程学院材料科学研究所聚合物复合材料及功能材料教育部重点实验室,广州510275 [2]中山大学测试分析中心,广州510275

出　　处：《高分子学报》2006年第6期829-832,共4页Acta Polymerica Sinica

基　　金：国家自然科学基金(基金号50273048);教育部博士点专项科研基金(基金号20010558002)资助项目

摘　　要：Linear low-density polyethylene(LLDPE) was melt blended with styrene-maleic anhydride copolymer(SMA).The blending films were then immersed in poly(ethylene glycol)400(PEG400) at room temperature.The surface composition of the blend films was determined by Fourier transform infra-red spectroscopy coupled with an variable incidence angle attenuated total reflection accessory(ATR-FTIR).It has been found that PEG400 was grafted onto the surface of the films via esterification with SMA.PEG immersion promoted enrichment of SMA onto the surface of the films.The water contact angle data show that grafting of PEG400 can greatly improve the hydrophilicity of the PE surface.These experiments show that surface functionalization of polyethylene films by blending SMA and then surface grafting of PEG is a feasible process,which suggest a viable and simple route for PE surface modification via blending and grafting.Linear low-density polyethylene （LLDPE） was melt blended with styrene-maleic anhydride copolymer （SMA）. The blending films were then immersed in poly （ ethylene glycol） 400 （PEG400） at room temperature. The surface composition of the blend films was determined by Fourier transform infra-red spectroscopy coupled with an variable incidence angle attenuated total reflection accessory （ATR-FTIR）. It has been found that PEG400 was grafted onto the surface of the films via esterification with SMA. PEG immersion promoted enrichment of SMA onto the surface of the films. The water contact angle data show that grafting of PEG400 can greatly improve the hydrophilicity of the PE surface. These blending SMA and then surface grafting experiments show that surface functionalization of polyethylene films by of PEG is a feasible process, which suggest a viable and simple route for PE surface modification via blending and grafting.

关 键 词：聚乙烯表面改性 苯乙烯-马来酸酐共聚物 聚乙二醇 表面接枝 

分 类 号：TQ320.721[化学工程—合成树脂塑料工业]