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Influence of hydrolysis on electrospinnability of chitosan/polyvinyl alcohol blends solution and fiber diameter distribution

In this study, the effect of hydrolysis on electrospinnability of chitosan/PVA blend solution has been investigated. Since crude chitosan (Mw=8.96105 g/mole, DD=40%) could not be dissolved even in concentrated acetic acid, it was hydrolyzed with 33.5 wt. % of NaOH at 90°C for 24 and 42 h. Hydrolyzed...

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Main Authors: Umma Habiba,, Amalina M. Afifi,, Bee, Chin Ang, Sepehr Talebian,
Format: Article
Language:English
Published: Universiti Kebangsaan Malaysia 2016
Online Access:http://journalarticle.ukm.my/9566/1/04_Umma_Habiba.pdf
http://journalarticle.ukm.my/9566/
http://www.ukm.my/jsm/malay_journals/jilid45bil1_2016/KandunganJilid45Bil1_2016.htm
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spelling my-ukm.journal.95662016-12-14T06:50:19Z http://journalarticle.ukm.my/9566/ Influence of hydrolysis on electrospinnability of chitosan/polyvinyl alcohol blends solution and fiber diameter distribution Umma Habiba, Amalina M. Afifi, Bee, Chin Ang Sepehr Talebian, In this study, the effect of hydrolysis on electrospinnability of chitosan/PVA blend solution has been investigated. Since crude chitosan (Mw=8.96105 g/mole, DD=40%) could not be dissolved even in concentrated acetic acid, it was hydrolyzed with 33.5 wt. % of NaOH at 90°C for 24 and 42 h. Hydrolyzed chitosan with two different time duration was analyzed using Fourier transform infrared (FTIR). Morphology of the product nanofiber was investigated by field emission scanning electron microscope (FESEM.). FTIR results showed that the hydrolysis did not destroy the molecular backbone of chitosan but increased the degree of deacetylation from 40 to 84% and 92% for 24 and 42 h hydrolysis time, respectively. FESEM image analysis was carried out and histogram was drawn to study on the distribution of fiber diameter. It showed that though the composition of chitosan/PVA remained the same, but mean fiber diameter, standard deviation and required applied voltage for electrospinning was smaller for the solution containing maximum time hydrolyzed chitosan. It indicated that longer hydrolysis time resulted in finer nanofiber which mostly attributed to lower required voltage for electrospinning. Threshold composition for defect free fiber is 50:50 and 60:40 of chitosan/PVA for 24 and 42 h hydrolysis, respectively. It meant that 42 h hydrolysis ensured the presence of more chitosan in the chitosan/PVA polymer blend because of smaller presence of amino group in chitosan molecule. Universiti Kebangsaan Malaysia 2016-01 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/9566/1/04_Umma_Habiba.pdf Umma Habiba, and Amalina M. Afifi, and Bee, Chin Ang and Sepehr Talebian, (2016) Influence of hydrolysis on electrospinnability of chitosan/polyvinyl alcohol blends solution and fiber diameter distribution. Sains Malaysiana, 45 (1). pp. 29-34. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid45bil1_2016/KandunganJilid45Bil1_2016.htm
institution Universiti Kebangsaan Malaysia
building Perpustakaan Tun Sri Lanang Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Kebangsaan Malaysia
content_source UKM Journal Article Repository
url_provider http://journalarticle.ukm.my/
language English
description In this study, the effect of hydrolysis on electrospinnability of chitosan/PVA blend solution has been investigated. Since crude chitosan (Mw=8.96105 g/mole, DD=40%) could not be dissolved even in concentrated acetic acid, it was hydrolyzed with 33.5 wt. % of NaOH at 90°C for 24 and 42 h. Hydrolyzed chitosan with two different time duration was analyzed using Fourier transform infrared (FTIR). Morphology of the product nanofiber was investigated by field emission scanning electron microscope (FESEM.). FTIR results showed that the hydrolysis did not destroy the molecular backbone of chitosan but increased the degree of deacetylation from 40 to 84% and 92% for 24 and 42 h hydrolysis time, respectively. FESEM image analysis was carried out and histogram was drawn to study on the distribution of fiber diameter. It showed that though the composition of chitosan/PVA remained the same, but mean fiber diameter, standard deviation and required applied voltage for electrospinning was smaller for the solution containing maximum time hydrolyzed chitosan. It indicated that longer hydrolysis time resulted in finer nanofiber which mostly attributed to lower required voltage for electrospinning. Threshold composition for defect free fiber is 50:50 and 60:40 of chitosan/PVA for 24 and 42 h hydrolysis, respectively. It meant that 42 h hydrolysis ensured the presence of more chitosan in the chitosan/PVA polymer blend because of smaller presence of amino group in chitosan molecule.
format Article
author Umma Habiba,
Amalina M. Afifi,
Bee, Chin Ang
Sepehr Talebian,
spellingShingle Umma Habiba,
Amalina M. Afifi,
Bee, Chin Ang
Sepehr Talebian,
Influence of hydrolysis on electrospinnability of chitosan/polyvinyl alcohol blends solution and fiber diameter distribution
author_facet Umma Habiba,
Amalina M. Afifi,
Bee, Chin Ang
Sepehr Talebian,
author_sort Umma Habiba,
title Influence of hydrolysis on electrospinnability of chitosan/polyvinyl alcohol blends solution and fiber diameter distribution
title_short Influence of hydrolysis on electrospinnability of chitosan/polyvinyl alcohol blends solution and fiber diameter distribution
title_full Influence of hydrolysis on electrospinnability of chitosan/polyvinyl alcohol blends solution and fiber diameter distribution
title_fullStr Influence of hydrolysis on electrospinnability of chitosan/polyvinyl alcohol blends solution and fiber diameter distribution
title_full_unstemmed Influence of hydrolysis on electrospinnability of chitosan/polyvinyl alcohol blends solution and fiber diameter distribution
title_sort influence of hydrolysis on electrospinnability of chitosan/polyvinyl alcohol blends solution and fiber diameter distribution
publisher Universiti Kebangsaan Malaysia
publishDate 2016
url http://journalarticle.ukm.my/9566/1/04_Umma_Habiba.pdf
http://journalarticle.ukm.my/9566/
http://www.ukm.my/jsm/malay_journals/jilid45bil1_2016/KandunganJilid45Bil1_2016.htm
_version_ 1643737844109279232
score 13.211869

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