Morphological evolution from porous nanofibers to rice like nanobeans

Jie-Feng Gao; Ming-Jun Hu; Wan Li; Julia Shuk-Ping Wong; Robert K.Y. Li

doi:10.1016/j.matlet.2014.04.107

Morphological evolution from porous nanofibers to rice like nanobeans

Jie-Feng Gao, Ming-Jun Hu, Wan Li, Julia Shuk-Ping Wong, Robert K.Y. Li^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

10 Citations (Scopus)

Abstract

Polycaprolactone/Polyethylene oxide (PCL/PEO) blends with different morphologies are prepared by electrospinning, and the porous PCL structures are obtained by selective removal of the PEO phase through water treatment. Morphology of the electrospun products evolves from the nanofiber to the rice like nanobeans by controlling the concentration of the blend polymer solution. Nanofiber is obtained at a high solution concentration, and the porosity and diameter of the nanofibers could be tuned by adjusting the PCL content in the blend solution. The needle like materials are present with decreasing solution concentration, and rice like nanobeans are observed with further decrease of the concentration. The decreased macromolecular entanglement is responsible for such morphology evolution. © 2014 Elsevier B.V.

Original language	English
Pages (from-to)	110-113
Journal	Materials Letters
Volume	128
Online published	26 Apr 2014
DOIs	https://doi.org/10.1016/j.matlet.2014.04.107
Publication status	Published - 1 Aug 2014

Research Keywords

Electrospinning
Nanobean
Nanofiber
Polycaprolactone
Porous materials

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10.1016/j.matlet.2014.04.107

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@article{f4ffb5966c71476abb8f99e4a233e648,

title = "Morphological evolution from porous nanofibers to rice like nanobeans",

abstract = "Polycaprolactone/Polyethylene oxide (PCL/PEO) blends with different morphologies are prepared by electrospinning, and the porous PCL structures are obtained by selective removal of the PEO phase through water treatment. Morphology of the electrospun products evolves from the nanofiber to the rice like nanobeans by controlling the concentration of the blend polymer solution. Nanofiber is obtained at a high solution concentration, and the porosity and diameter of the nanofibers could be tuned by adjusting the PCL content in the blend solution. The needle like materials are present with decreasing solution concentration, and rice like nanobeans are observed with further decrease of the concentration. The decreased macromolecular entanglement is responsible for such morphology evolution. {\textcopyright} 2014 Elsevier B.V.",

keywords = "Electrospinning, Nanobean, Nanofiber, Polycaprolactone, Porous materials",

author = "Jie-Feng Gao and Ming-Jun Hu and Wan Li and Wong, {Julia Shuk-Ping} and Li, {Robert K.Y.}",

year = "2014",

month = aug,

day = "1",

doi = "10.1016/j.matlet.2014.04.107",

language = "English",

volume = "128",

pages = "110--113",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Morphological evolution from porous nanofibers to rice like nanobeans

AU - Gao, Jie-Feng

AU - Hu, Ming-Jun

AU - Li, Wan

AU - Wong, Julia Shuk-Ping

AU - Li, Robert K.Y.

PY - 2014/8/1

Y1 - 2014/8/1

N2 - Polycaprolactone/Polyethylene oxide (PCL/PEO) blends with different morphologies are prepared by electrospinning, and the porous PCL structures are obtained by selective removal of the PEO phase through water treatment. Morphology of the electrospun products evolves from the nanofiber to the rice like nanobeans by controlling the concentration of the blend polymer solution. Nanofiber is obtained at a high solution concentration, and the porosity and diameter of the nanofibers could be tuned by adjusting the PCL content in the blend solution. The needle like materials are present with decreasing solution concentration, and rice like nanobeans are observed with further decrease of the concentration. The decreased macromolecular entanglement is responsible for such morphology evolution. © 2014 Elsevier B.V.

AB - Polycaprolactone/Polyethylene oxide (PCL/PEO) blends with different morphologies are prepared by electrospinning, and the porous PCL structures are obtained by selective removal of the PEO phase through water treatment. Morphology of the electrospun products evolves from the nanofiber to the rice like nanobeans by controlling the concentration of the blend polymer solution. Nanofiber is obtained at a high solution concentration, and the porosity and diameter of the nanofibers could be tuned by adjusting the PCL content in the blend solution. The needle like materials are present with decreasing solution concentration, and rice like nanobeans are observed with further decrease of the concentration. The decreased macromolecular entanglement is responsible for such morphology evolution. © 2014 Elsevier B.V.

KW - Electrospinning

KW - Nanobean

KW - Nanofiber

KW - Polycaprolactone

KW - Porous materials

UR - http://www.scopus.com/inward/record.url?scp=84900460903&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84900460903&origin=recordpage

U2 - 10.1016/j.matlet.2014.04.107

DO - 10.1016/j.matlet.2014.04.107

M3 - RGC 21 - Publication in refereed journal

SN - 0167-577X

VL - 128

SP - 110

EP - 113

JO - Materials Letters

JF - Materials Letters

ER -

Morphological evolution from porous nanofibers to rice like nanobeans

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GRF: Preparation of High Performance Polyethylene Oxide (PEO) Based Solid Polymer Electrolyte for Lithium Ion Battery

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Morphological evolution from porous nanofibers to rice like nanobeans

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Research Keywords

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GRF: Preparation of High Performance Polyethylene Oxide (PEO) Based Solid Polymer Electrolyte for Lithium Ion Battery

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