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

被引：33
|
作者：
Huang, Xuewu [1 ]
Gao, Jiefeng [1 ,2 ,3 ]
Li, Wan [2 ]
Xue, Huaiguo [1 ]
Li, Robert K. Y. [2 ]
Mai, Yiu-Wing [3 ]
机构：
[1] Yangzhou Univ, Coll Chem & Chem Engn, Yangzhou 225002, Jiangsu, Peoples R China
[2] City Univ Hong Kong, Dept Phys & Mat Sci, Tat Chee Ave, Kowloon, Hong Kong, Peoples R China
[3] Univ Sydney, CAMT, Sch Aerosp Mech & Mech Engn J07, Sydney, NSW 2006, Australia
来源：
MATERIALS & DESIGN | 2017年 / 117卷
关键词：
Electro-spraying; Electrospinning; Non-solvent; Phase separation; Pores; POROUS POLYCAPROLACTONE MICROSPHERES; POLYMER MICROSPHERES; ELECTROHYDRODYNAMIC ATOMIZATION; NANOFIBERS; SOLVENT; PARTICLES; SCAFFOLD; FILM;
D O I：
10.1016/j.matdes.2016.12.096
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Poly(epsilon-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. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：298 / 304
页数：7
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