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Effect of homogeneous acidic catalyst on mechanical strength of trishydrazone hydrogels: characterization and optimization studies

Characterization utilizing X-ray photoelectron spectroscopy (XPS) revealed the presence of all the expected elements found in trishydrazone hydrogels (3). Morphological study on confocal laser scanning microscopy (CLSM) and atomic force microscopy (AFM) revealed the branching and bundling of fibers...

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Main Authors: Abdullah, N. H., Wan Abu Bakar, W. A., Hussain, R., Bakar, M. B., van Esch, J. H.
Format: Article
Language:English
Published: Elsevier B.V. 2018
Subjects:
QD Chemistry
Online Access:http://eprints.utm.my/id/eprint/79706/1/WanAzelee2018_EffectofHomogeneousAcidicCatalystonMechanical.pdf
http://eprints.utm.my/id/eprint/79706/
http://dx.doi.org/10.1016/j.arabjc.2016.01.001
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spelling my.utm.797062019-01-28T06:38:17Z http://eprints.utm.my/id/eprint/79706/ Effect of homogeneous acidic catalyst on mechanical strength of trishydrazone hydrogels: characterization and optimization studies Abdullah, N. H. Wan Abu Bakar, W. A. Hussain, R. Bakar, M. B. van Esch, J. H. QD Chemistry Characterization utilizing X-ray photoelectron spectroscopy (XPS) revealed the presence of all the expected elements found in trishydrazone hydrogels (3). Morphological study on confocal laser scanning microscopy (CLSM) and atomic force microscopy (AFM) revealed the branching and bundling of fibers that led hydrogels network as well as the presence of cross-linked nanofibrillar network structure. A three-factor three-level Box Behnken design was implemented to study the concurrent effects of three main variables (concentration of precursor; 10–20 mM, pH; 3–7, and concentration of buffer; 50–150 mM) on mechanical strength of hydrogels. Analysis of variance (ANOVA) was conducted to investigate the potential interactive and quadratic effects between these variables and revealed that interaction between the pH value and the concentration of buffer (X2X3) showed a significant effect on the response since the significance of the design model (p-value) was set at <0.05. Experimental results showed that acid catalyst at pH 5 had a significant effect on mechanical properties of hydrogels compared to uncatalyzed condition at pH 7 where the mechanical strength at pH 5 is almost 10 times higher than pH 7. The processing conditions that contributed to an optimum hydrogels setting were found at concentration of precursor = 20 mM, pH = 5 and concentration of buffer = 100 mM. Elsevier B.V. 2018 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/79706/1/WanAzelee2018_EffectofHomogeneousAcidicCatalystonMechanical.pdf Abdullah, N. H. and Wan Abu Bakar, W. A. and Hussain, R. and Bakar, M. B. and van Esch, J. H. (2018) Effect of homogeneous acidic catalyst on mechanical strength of trishydrazone hydrogels: characterization and optimization studies. Arabian Journal of Chemistry, 11 (5). pp. 635-644. ISSN 1878-5352 http://dx.doi.org/10.1016/j.arabjc.2016.01.001 DOI:10.1016/j.arabjc.2016.01.001
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic QD Chemistry
spellingShingle QD Chemistry
Abdullah, N. H.
Wan Abu Bakar, W. A.
Hussain, R.
Bakar, M. B.
van Esch, J. H.
Effect of homogeneous acidic catalyst on mechanical strength of trishydrazone hydrogels: characterization and optimization studies
description Characterization utilizing X-ray photoelectron spectroscopy (XPS) revealed the presence of all the expected elements found in trishydrazone hydrogels (3). Morphological study on confocal laser scanning microscopy (CLSM) and atomic force microscopy (AFM) revealed the branching and bundling of fibers that led hydrogels network as well as the presence of cross-linked nanofibrillar network structure. A three-factor three-level Box Behnken design was implemented to study the concurrent effects of three main variables (concentration of precursor; 10–20 mM, pH; 3–7, and concentration of buffer; 50–150 mM) on mechanical strength of hydrogels. Analysis of variance (ANOVA) was conducted to investigate the potential interactive and quadratic effects between these variables and revealed that interaction between the pH value and the concentration of buffer (X2X3) showed a significant effect on the response since the significance of the design model (p-value) was set at <0.05. Experimental results showed that acid catalyst at pH 5 had a significant effect on mechanical properties of hydrogels compared to uncatalyzed condition at pH 7 where the mechanical strength at pH 5 is almost 10 times higher than pH 7. The processing conditions that contributed to an optimum hydrogels setting were found at concentration of precursor = 20 mM, pH = 5 and concentration of buffer = 100 mM.
format Article
author Abdullah, N. H.
Wan Abu Bakar, W. A.
Hussain, R.
Bakar, M. B.
van Esch, J. H.
author_facet Abdullah, N. H.
Wan Abu Bakar, W. A.
Hussain, R.
Bakar, M. B.
van Esch, J. H.
author_sort Abdullah, N. H.
title Effect of homogeneous acidic catalyst on mechanical strength of trishydrazone hydrogels: characterization and optimization studies
title_short Effect of homogeneous acidic catalyst on mechanical strength of trishydrazone hydrogels: characterization and optimization studies
title_full Effect of homogeneous acidic catalyst on mechanical strength of trishydrazone hydrogels: characterization and optimization studies
title_fullStr Effect of homogeneous acidic catalyst on mechanical strength of trishydrazone hydrogels: characterization and optimization studies
title_full_unstemmed Effect of homogeneous acidic catalyst on mechanical strength of trishydrazone hydrogels: characterization and optimization studies
title_sort effect of homogeneous acidic catalyst on mechanical strength of trishydrazone hydrogels: characterization and optimization studies
publisher Elsevier B.V.
publishDate 2018
url http://eprints.utm.my/id/eprint/79706/1/WanAzelee2018_EffectofHomogeneousAcidicCatalystonMechanical.pdf
http://eprints.utm.my/id/eprint/79706/
http://dx.doi.org/10.1016/j.arabjc.2016.01.001
_version_ 1643658269585047552
score 13.211869

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