Self-aligned and bundled electrospun fibers prepared from blends of polystyrene (PS) and poly(methyl methacrylate) (PMMA) with a hairt-rod polyphenylene copolymer

Date
2009-07-31
Advisor
Instructor
Source Title
Materials Letters
Print ISSN
0167-577X
Electronic ISSN
Publisher
Elsevier
Volume
63
Issue
18-19
Pages
1638 - 1641
Language
English
Type
Article
Journal Title
Journal ISSN
Volume Title
Abstract

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.

Course
Other identifiers
Book Title
Keywords
Aligned nanofiber, Electrospinning, Hairy-rod conjugated copolymer, Poly(methyl methacrylate) (PMMA), Polyphenylene, Polystyrene (PS)
Citation
Published Version (Please cite this version)