Synthesis and characterization of star-shaped (PCL-B-PEG) as potential electrospun microfibres

Star-shaped polymers have vast potential in application due to their architecture. In this study, a 6-arm star-shaped of poly(ԑ-caprolactone)-b-poly(ethylene glycol), (6PCG) was synthesized via ring opening polymerization, (ROP) of ԑ-caprolactone and Steiglich esterification (coupling reaction) to a...

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Main Authors:	Wafiuddin Ismail, Rusli Daik, Shafida Abd Hamid, Wan Khartini Wan Abdul Khodir
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2019
Online Access:	http://journalarticle.ukm.my/14408/ http://journalarticle.ukm.my/14408/ http://journalarticle.ukm.my/14408/1/23%20Wafiuddin%20Ismail.pdf

id	ukm-14408
recordtype	eprints
spelling	ukm-144082020-03-10T02:35:13Z http://journalarticle.ukm.my/14408/ Synthesis and characterization of star-shaped (PCL-B-PEG) as potential electrospun microfibres Wafiuddin Ismail, Rusli Daik, Shafida Abd Hamid, Wan Khartini Wan Abdul Khodir, Star-shaped polymers have vast potential in application due to their architecture. In this study, a 6-arm star-shaped of poly(ԑ-caprolactone)-b-poly(ethylene glycol), (6PCG) was synthesized via ring opening polymerization, (ROP) of ԑ-caprolactone and Steiglich esterification (coupling reaction) to attach the PEG arm to the star-shaped polymer with discrete core of dipentaerythritol. The polymer chemical structure was characterized by FT-IR. The molecular weight (Mn) determined from 1H NMR spectra showed that the star polymer has approximately the same molecular weight as the theoretical value. The polydispersity index indices (PDI) (>1.5) from GPC were narrow suggesting controlled polymerization reaction. Thermal stability of the star-shaped 6PCG were examined using thermogravimetric analysis, (TGA) and differential scanning calorimetry, (DSC) and showed slight increase compared to homopolymer star PCL due to the changes of end-group functionalities. Six-arm star-shaped PCL-b-PEG was dissolved in chloroform/methanol solvents and the resulting solution was used for electrospinning process. The morphology of nanofibres showed fine fibres without beads and thus a possible potential for several applications. Penerbit Universiti Kebangsaan Malaysia 2019-10 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/14408/1/23%20Wafiuddin%20Ismail.pdf Wafiuddin Ismail, and Rusli Daik, and Shafida Abd Hamid, and Wan Khartini Wan Abdul Khodir, (2019) Synthesis and characterization of star-shaped (PCL-B-PEG) as potential electrospun microfibres. Sains Malaysiana, 48 (10). pp. 2265-2275. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid48bil10_2019/KandunganJilid48Bil10_2019.htm
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	Star-shaped polymers have vast potential in application due to their architecture. In this study, a 6-arm star-shaped of poly(ԑ-caprolactone)-b-poly(ethylene glycol), (6PCG) was synthesized via ring opening polymerization, (ROP) of ԑ-caprolactone and Steiglich esterification (coupling reaction) to attach the PEG arm to the star-shaped polymer with discrete core of dipentaerythritol. The polymer chemical structure was characterized by FT-IR. The molecular weight (Mn) determined from 1H NMR spectra showed that the star polymer has approximately the same molecular weight as the theoretical value. The polydispersity index indices (PDI) (>1.5) from GPC were narrow suggesting controlled polymerization reaction. Thermal stability of the star-shaped 6PCG were examined using thermogravimetric analysis, (TGA) and differential scanning calorimetry, (DSC) and showed slight increase compared to homopolymer star PCL due to the changes of end-group functionalities. Six-arm star-shaped PCL-b-PEG was dissolved in chloroform/methanol solvents and the resulting solution was used for electrospinning process. The morphology of nanofibres showed fine fibres without beads and thus a possible potential for several applications.
format	Article
author	Wafiuddin Ismail, Rusli Daik, Shafida Abd Hamid, Wan Khartini Wan Abdul Khodir,
spellingShingle	Wafiuddin Ismail, Rusli Daik, Shafida Abd Hamid, Wan Khartini Wan Abdul Khodir, Synthesis and characterization of star-shaped (PCL-B-PEG) as potential electrospun microfibres
author_facet	Wafiuddin Ismail, Rusli Daik, Shafida Abd Hamid, Wan Khartini Wan Abdul Khodir,
author_sort	Wafiuddin Ismail,
title	Synthesis and characterization of star-shaped (PCL-B-PEG) as potential electrospun microfibres
title_short	Synthesis and characterization of star-shaped (PCL-B-PEG) as potential electrospun microfibres
title_full	Synthesis and characterization of star-shaped (PCL-B-PEG) as potential electrospun microfibres
title_fullStr	Synthesis and characterization of star-shaped (PCL-B-PEG) as potential electrospun microfibres
title_full_unstemmed	Synthesis and characterization of star-shaped (PCL-B-PEG) as potential electrospun microfibres
title_sort	synthesis and characterization of star-shaped (pcl-b-peg) as potential electrospun microfibres
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2019
url	http://journalarticle.ukm.my/14408/ http://journalarticle.ukm.my/14408/ http://journalarticle.ukm.my/14408/1/23%20Wafiuddin%20Ismail.pdf
first_indexed	2023-09-18T20:07:00Z
last_indexed	2023-09-18T20:07:00Z
_version_	1777407225585729536

Synthesis and characterization of star-shaped (PCL-B-PEG) as potential electrospun microfibres

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