二氧化硅@聚合物同轴纳米纤维  

Silica@Polymers Coaxial Nanofibers

作　　者：洪友良[1] 商铁存[1] 靳玉伟[1] 杨帆[1] 王策[1] 

机构地区：[1]吉林大学麦克德尔米德实验室,长春130012

出　　处：《高等学校化学学报》2005年第5期985-987,F013,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:50173009);国家"九七三"计划项目(批准号:2001CB610500);国家自然科学基金重大国际合作项目(批准号:20320120169)资助.

摘　　要：The preparation and formation mechanism of silica/polyvinylpyrrolidone（PVP）-polyacrylonitrile（PAN） coaxial nanofibers were presented in this paper. The PVP-PAN composite nanofibers were obtained via an electrospinning technique, while SiO2 nanoparticles were prepared according to a Stber method. The measurements of water contact angle（WCA）, the compared results of silica coating PVP-PAN composite nanofibers with PAN nanofibers indicate that much PVP resided on the composite nanofiber surface, which results in the occurrence of SiO2@polymer coaxial nanofibers due to the formation of hydrogen bonding between silica and composite nanofibers and subsequent adsorption of silica on the fiber surface.The preparation and formation mechanism of silica/polyvinylpyrrolidone(PVP)-polyacrylonitrile(PAN) coaxial nanofibers were presented in this paper. The PVP-PAN composite nanofibers were obtained via an electrospinning technique, while SiO_2 nanoparticles were prepared according to a Stber method. The measurements of water contact angle(WCA), the compared results of silica coating PVP-PAN composite nanofibers with PAN nanofibers indicate that much PVP resided on the composite nanofiber surface, which results in the occurrence of SiO_2@polymer coaxial nanofibers due to the formation of hydrogen bonding between silica and composite nanofibers and subsequent adsorption of silica on the fiber surface.

关 键 词：静电纺丝 纳米复合纤维 二氧化硅纳米粒子 同轴纳米纤维 

分 类 号：O631[理学—高分子化学]