Nanowire-in-Microtube Structured Core/Shell Fibers via Multifluidic Coaxial Electrospinning

被引:251
作者
Chen, Hongyan [1 ,2 ]
Wang, Nu [3 ]
Di, Jiancheng [4 ]
Zhao, Yong [1 ]
Song, Yanlin [1 ]
Jiang, Lei [1 ]
机构
[1] Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci BNLMS, Key Lab Organ Solids, Beijing 100190, Peoples R China
[2] Chinese Acad Sci, Grad Univ, Beijing 100190, Peoples R China
[3] Beijing Univ Aeronaut & Astronaut, Sch Chem & Environm, Beijing 100083, Peoples R China
[4] Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China
关键词
CORE-SHELL; POLYMER NANOFIBERS; DIAMETER FIBERS; ENCAPSULATION; FABRICATION; CARBON; COMPOSITE; METHACRYLATE); NANOCABLES; CONVERSION;
D O I
10.1021/la100611f
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A multifluidic coaxial electrospinning approach is reported here to fabricate core/shell ultrathin fibers with a novel nanowire-in-microtube structure from more optional fluid pairs than routine coaxial electrospinning. The advantage of this approach lies in the fact that it introduces an extra middle fluid between the core and shell fluids of traditional coaxial electrospinning, which can work as an effective spacer to decrease the interaction of the other two fluids. Under the protection of a proper middle fluid, more fluid pairs, even mutually miscible fluids, can he operated to generate "sandwich"-structured ultrathin fibers with a sharp boundary between the core and shell materials. It thereby largely extends the scope of optional materials. Selectively removing the middle layer of the as-prepared fibers results in an interesting nanowire-in-microtube structure. Either homogeneous or heterogeneous fibers with well-tailored sandwich Structures have been successfully fabricated. This method is an important extension of traditional co-electrospinning that affords a more universal avenue to preparing core/shell fibers; 110 cover, the special hollow cavity structure may introduce some extra properties into the conventional core/shell structure, which may find potential applications such as optical applications, microelectronics, and others.
引用
收藏
页码:11291 / 11296
页数:6
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