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- W2892260641 abstract "Abstract Polyacrylonitrile (PAN) nanofibers are very important to achieve high performance carbon nanofibers. In this work, co-polyacrylonitriles (co-PANs) with different molecular weights were synthesized by a simple free-radical polymerization. The effect of the initiator amount on the molecular weight of co-PAN was investigated. The co-PANs with different molecular weight were electrospun into aligned nanofibers by adjusting the absolute viscosity of co-PAN solution into ~1.0 Pa·s. All the co-PAN nanofibers showed smooth surfaces and homogeneous fiber diameters of ~450 nm. Tensile tests were applied to evaluate the mechanical properties of electrospun aligned co-PAN nanofibers. The results indicated that higher molecular weight led to better mechanical performance of electrospun aligned co-PAN nanofibers. When the molecular weight was 2.3×10 5 , the highest strength of 153 MPa, strain of 0.148, and toughness of 16.0 J/g were obtained. These electrospun aligned co-PAN nanofibers could be good candidates for the preparation of high performance carbon nanofibers." @default.
- W2892260641 created "2018-09-27" @default.
- W2892260641 creator A5041279353 @default.
- W2892260641 creator A5066437473 @default.
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- W2892260641 date "2018-09-15" @default.
- W2892260641 modified "2023-10-11" @default.
- W2892260641 title "Synthesis of polyacrylonitrile and mechanical properties of its electrospun nanofibers" @default.
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- W2892260641 doi "https://doi.org/10.1515/epoly-2018-0158" @default.
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