期刊
MATERIALS LETTERS
卷 63, 期 18-19, 页码 1638-1641出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2009.04.039
关键词
Electrospinning; Hairy-rod conjugated copolymer; Aligned nanofiber; Polyphenylene; Polystyrene (PS); Poly(methyl methacrylate) (PMMA)
资金
- NanoNonwovens
- NANO center
Bundled and self-aligned fibers were obtained by electrospinning blends of polystyrene (PS) and poly (methyl methacrylate) (PMMA) with a hairy-rod polyphenylene-g-polystyrene/poly(a-caprolactone) (PP-g-PS/PCL) copolymer. The self-alignment and bundling characteristics of these electrospun fibers were ascribed to the unique molecular architecture of the conjugated polymer. PP-g-PS/PCL, and its interactions with the solvent and the polymer matrixes used for the electrospinning. The self-alignment and bundling was found to be much more pronounced for PP-g-PS/PCL-PS blend when compared to PP-g-PS/PCL-PMMA blend. Furthermore we found that the degree of self-alignment of the fiber bundles was enhanced by increasing the amount of PP-g-PS/PCL in the blends but the alignment completely disappeared when the solvent dimethylformamide was changed to chloroform. (C) 2009 Elsevier B.V. All rights reserved.
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