NANOFIBROUS MATS WITH BIRD'S NEST PATTERNS BY ELECTROSPINNING  

作　　者：Xiang-yu Ye Xiao-jun Huang Zhi-kang Xu 

机构地区：[1]MOE Key Laboratory of Macromolecular Synthesis and Functionalization,Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China

出　　处：《Chinese Journal of Polymer Science》2012年第1期130-137,共8页高分子科学（英文版）

基　　金：financially supported by the State Key Program of the National Natural Science Foundation of China (No.50933006);Zhejiang Provincial Innovative Research Team(No.2009R50004)

摘　　要：Electrospun material with bio-inspired ordered architectures and patterns is very interesting,yet remains a challenge.We report here that nanofibrous mats with bird＇s nest patterned structures can be directly electrospun from chlorinated polypropylene solutions doped with an ionic liquid.The solution viscosity and the ionic liquid content are two dominant factors to influence the topological morphology of the nanofibrous mats.The patterned structures can be further modulated by the collection time of electrospinning,the humidity of environment and the design of collector.We suggest the electrostatic repulsion between the residual charges of the mat surface and the upcoming nanofibers plays a key role in the formation of the bird＇s nest patterns.Electrospun material with bio-inspired ordered architectures and patterns is very interesting,yet remains a challenge.We report here that nanofibrous mats with bird＇s nest patterned structures can be directly electrospun from chlorinated polypropylene solutions doped with an ionic liquid.The solution viscosity and the ionic liquid content are two dominant factors to influence the topological morphology of the nanofibrous mats.The patterned structures can be further modulated by the collection time of electrospinning,the humidity of environment and the design of collector.We suggest the electrostatic repulsion between the residual charges of the mat surface and the upcoming nanofibers plays a key role in the formation of the bird＇s nest patterns.

关 键 词：ELECTROSPINNING Ionic liquid Patterned structures 

分 类 号：TS972.12[轻工技术与工程] TB383[一般工业技术—材料科学与工程]