標題: M Breaking embedded electrospun fibers (BEEF): Fabrication of polymer spheres encapsulated in polymer films
作者: Chi, Heng-Yu
Tsai, Chia-Chan
Chiu, Yu-Jing
Chen, Jiun-Tai
應用化學系
Department of Applied Chemistry
關鍵字: electrospinning;interfacial tension;Plateau-Rayleigh instability;polymer fibers;polymer spheres
公開日期: Dec-2016
摘要: In this work, a novel method to fabricate polymer spheres encapsulated in polymer films by breaking embedded electrospun fibers (BEEF) was developed. Polymer fibers were first prepared by electrospinning and embedded in other polymer films using a three-layer deposition method. After thermal annealing, the electrospun fibers transform into individual spheres with regular spacing and sizes. Poly(methyl methacrylate) (PMMA) and polystyrene (PS) are both used as the fiber or film materials. The transformation process can be observed in-situ by optical microscope (OM) and is similar to the Plateau-Rayleigh instability. The growth rates of the surface undulation of the fibers are calculated, and higher growth rates are observed at higher annealing temperatures. The sizes of the encapsulated polymer spheres agree well with the theoretical predictions. (c) 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2016, 54, 2463-2470
URI: http://dx.doi.org/10.1002/polb.24239
http://hdl.handle.net/11536/132795
ISSN: 0887-6266
DOI: 10.1002/polb.24239
期刊: JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
Volume: 54
Issue: 24
起始頁: 2463
結束頁: 2470
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