화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2005년 가을 (10/21 ~ 10/22, 인하대학교)
권호 11권 2호, p.1643
발표분야 고분자
제목 Surface Morphology of Polystyrene Fibers Electrospun from Non-volatile Solvent
초록 We produced a unique morphology on the surface of electrospun polystyrene fibers using a non-volatile solvent, N,N-dimethyl formamide (DMF), which is quite different from the porous structure observed on polymer fibers electrospun from volatile solvents such as tetrahydrofuran (THF). A unique, cucumber-like surface structure was obtained on the electrospun polymer fibers using relatively concentrated solutions (> 30 wt%). It is believed that the non-volatility of the solvent, the high viscosity of the polymer solution and the large diameter of the fiber retarded rapid evaporation of the solvent. Moreover, the residual solvent entrapped inside the fiber induced an extrusive force, which eventually yielded a unique surface structure such as small protuberances. We believe that this unique surface morphology would increase the surface area of the electrospun fibers and be able to control the wetting or the adsorption behavior.
저자 강민성, 진형준
소속 인하대
키워드 electrospinning; polystyrene; surface morphology; non-volatile solvent
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