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...

Full description

Bibliographic Details
Main Authors:	Ismail, Mohamad Wafiuddin, Daik, Rusli, Abd Hamid, Shafida, Wan Abdul Khodir, Wan Khartini
Format:	Article
Language:	English English English
Published:	Universiti Kebangsaan Malaysia 2019
Subjects:	QD Chemistry
Online Access:	http://irep.iium.edu.my/77636/ http://irep.iium.edu.my/77636/ http://irep.iium.edu.my/77636/ http://irep.iium.edu.my/77636/1/SM_Wafiuddin%20et%20al%202019.pdf http://irep.iium.edu.my/77636/7/77636_Synthesis%20and%20Characterization%20of%20Star-Shaped%20%28PCL-B-PEG%29_scopus.pdf http://irep.iium.edu.my/77636/8/77636_Synthesis%20and%20Characterization%20of%20Star-Shaped%20%28PCL-B-PEG%29_wos.pdf

id	iium-77636
recordtype	eprints
spelling	iium-776362020-01-23T00:50:17Z http://irep.iium.edu.my/77636/ Synthesis and characterization of star-shaped (PCL-B-PEG) as potential electrospun microfibres Ismail, Mohamad Wafiuddin Daik, Rusli Abd Hamid, Shafida Wan Abdul Khodir, Wan Khartini QD Chemistry 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. Universiti Kebangsaan Malaysia 2019-10 Article PeerReviewed application/pdf en http://irep.iium.edu.my/77636/1/SM_Wafiuddin%20et%20al%202019.pdf application/pdf en http://irep.iium.edu.my/77636/7/77636_Synthesis%20and%20Characterization%20of%20Star-Shaped%20%28PCL-B-PEG%29_scopus.pdf application/pdf en http://irep.iium.edu.my/77636/8/77636_Synthesis%20and%20Characterization%20of%20Star-Shaped%20%28PCL-B-PEG%29_wos.pdf Ismail, Mohamad Wafiuddin and Daik, Rusli and Abd Hamid, Shafida and Wan Abdul Khodir, Wan Khartini (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/pdf_files/SM-PDF-48-10-2019/23%20Wafiuddin%20Ismail.pdf 10.17576/jsm-2019-4810-23
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	QD Chemistry
spellingShingle	QD Chemistry Ismail, Mohamad Wafiuddin Daik, Rusli Abd Hamid, Shafida Wan Abdul Khodir, Wan Khartini Synthesis and characterization of star-shaped (PCL-B-PEG) as potential electrospun microfibres
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	Ismail, Mohamad Wafiuddin Daik, Rusli Abd Hamid, Shafida Wan Abdul Khodir, Wan Khartini
author_facet	Ismail, Mohamad Wafiuddin Daik, Rusli Abd Hamid, Shafida Wan Abdul Khodir, Wan Khartini
author_sort	Ismail, Mohamad Wafiuddin
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	Universiti Kebangsaan Malaysia
publishDate	2019
url	http://irep.iium.edu.my/77636/ http://irep.iium.edu.my/77636/ http://irep.iium.edu.my/77636/ http://irep.iium.edu.my/77636/1/SM_Wafiuddin%20et%20al%202019.pdf http://irep.iium.edu.my/77636/7/77636_Synthesis%20and%20Characterization%20of%20Star-Shaped%20%28PCL-B-PEG%29_scopus.pdf http://irep.iium.edu.my/77636/8/77636_Synthesis%20and%20Characterization%20of%20Star-Shaped%20%28PCL-B-PEG%29_wos.pdf
first_indexed	2023-09-18T21:49:30Z
last_indexed	2023-09-18T21:49:30Z
_version_	1777413674085908480

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

Similar Items