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Materials & Design v.117, 2017년, pp.298 - 304   SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Preparation of poly(ε-caprolactone) microspheres and fibers with controllable surface morphology

Huang, Xuewu (College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China ) ; Gao, Jiefeng (College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China ) ; Li, Wan (Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China ) ; Xue, Huaiguo (College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China ) ; Li, Robert K.Y. (Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China ) ; Mai, Yiu-Wing (Centre for Advanced Materials Technology (CAMT) School of Aerospace, Mechanical and Mechatronic Engineering J07, The University of Sydney, Sydney, NSW 2006, Australia ) ;
  • 초록  

    Abstract Poly(ε-caprolactone) (PCL) microspheres with different surface architectures were prepared by electro-spraying a solution containing polymer, host solvent and guest solvent. With increasing polymer concentration, PCL gradually turned from collapsed particles to regular uniform microspheres and finally to fibers. Non-solvent induced phase separation was responsible for formation of surface pores, and the pore density on the microsphere surface could be varied by selecting different guest solvent or by changing the amount of the non-solvent. The surface morphology of electrospun fibers could be tuned from smooth to rough and porous by varying the weight ratio between non-solvent and polymer that controlled the coalescence of the non-solvent nuclei. Highlights Porous PCL microspheres and fibers were prepared. Non-solvent induced phase separation was responsible for the pore formation. Controllable surface morphology of PCL microspheres and fibers could be achieved. Graphical abstract [DISPLAY OMISSION]


  • 주제어

    Electro-spraying .   Electrospinning .   Non-solvent .   Phase separation .   Pores.  

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