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

Xuewu Huang; Jiefeng Gao; Wan Li; Huaiguo Xue; Robert K.Y. Li; Yiu Wing Mai

doi:10.1016/j.matdes.2016.12.096

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

Xuewu Huang, Jiefeng Gao, Wan Li, Huaiguo Xue, Robert K.Y. Li, Yiu Wing Mai

Research output: Journal article publication › Journal article › Academic research › peer-review

33 Citations (Scopus)

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.

Original language	English
Pages (from-to)	298-304
Number of pages	7
Journal	Materials and Design
Volume	117
DOIs	https://doi.org/10.1016/j.matdes.2016.12.096
Publication status	Published - 5 Mar 2017
Externally published	Yes

Keywords

Electro-spraying
Electrospinning
Non-solvent
Phase separation
Pores

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

More information

10.1016/j.matdes.2016.12.096

Cite this

@article{59c0255ac1e34efb83e47a5837bbf7f9,

title = "Preparation of poly(ε-caprolactone) microspheres and fibers with controllable surface morphology",

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.",

keywords = "Electro-spraying, Electrospinning, Non-solvent, Phase separation, Pores",

author = "Xuewu Huang and Jiefeng Gao and Wan Li and Huaiguo Xue and Li, {Robert K.Y.} and Mai, {Yiu Wing}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2017",

month = mar,

day = "5",

doi = "10.1016/j.matdes.2016.12.096",

language = "English",

volume = "117",

pages = "298--304",

journal = "Materials and Design",

issn = "0264-1275",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Preparation of poly(ε-caprolactone) microspheres and fibers with controllable surface morphology

AU - Huang, Xuewu

AU - Gao, Jiefeng

AU - Li, Wan

AU - Xue, Huaiguo

AU - Li, Robert K.Y.

AU - Mai, Yiu Wing

PY - 2017/3/5

Y1 - 2017/3/5

N2 - 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.

AB - 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.

KW - Electro-spraying

KW - Electrospinning

KW - Non-solvent

KW - Phase separation

KW - Pores

UR - http://www.scopus.com/inward/record.url?scp=85008311741&partnerID=8YFLogxK

U2 - 10.1016/j.matdes.2016.12.096

DO - 10.1016/j.matdes.2016.12.096

M3 - Journal article

AN - SCOPUS:85008311741

SN - 0264-1275

VL - 117

SP - 298

EP - 304

JO - Materials and Design

JF - Materials and Design

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

More information

Other files and links

Fingerprint

Cite this