Synthesis and characterization of epoxidized palm oil hydrogel

A bio-based hydrogel (HPEPO) was synthesized from epoxidized palm oil (EPO) by using ring opening polymerization (ROP) in the presence of a fluoroantimonic acid hexahydrate (HSbF6·6H2O) catalyst, followed by a chemical hydrolysis catalyzed with sodium hydroxide (NaOH). A response surface methodology...

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Main Author:	Wan Tajulruddin, Wan Nurhayati
Format:	Thesis
Language:	English
Published:	2016
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/60555/1/WanNurhayatiWanMFChE2016.pdf
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spelling	my-utm-ep.605552017-10-08T07:31:50Z Synthesis and characterization of epoxidized palm oil hydrogel 2016-09 Wan Tajulruddin, Wan Nurhayati TP Chemical technology A bio-based hydrogel (HPEPO) was synthesized from epoxidized palm oil (EPO) by using ring opening polymerization (ROP) in the presence of a fluoroantimonic acid hexahydrate (HSbF6·6H2O) catalyst, followed by a chemical hydrolysis catalyzed with sodium hydroxide (NaOH). A response surface methodology (RSM) was adopted to optimize the reaction parameters, namely, concentration of NaOH solution, NaOH solution loading and reaction time used during the chemical hydrolysis. The successful ring opening of EPO was confirmed by the disappearance of the epoxy functional group at 833 cm-1 of the Fourier transform infrared and at 2.8 to 3.0 ppm of nuclear magnetic resonance spectra. The increase of melting points of HPEPO was observed in the temperature range between 45 °C to 60 °C, corresponded to the increase of crystalline phase in hydrogel as determined by differential scanning calorimetry. The thermal stability of hydrogel was improved up to 200 °C, as shown by thermogravimetric analysis. Apart from that, the swelling behavior that was largely influenced by the hydrophilic carboxyl group and the hydrophobic alkyl group of hydrogel showed some sensitiveness towards the temperature changes, ranging from 15 °C to 40 °C. Meanwhile, the RSM analysis showed that the optimum conditions for all reaction parameters were achieved at 0.33 M concentration of NaOH solution, 73 mL of NaOH solution loading and 25 hours of reaction time. 2016-09 Thesis http://eprints.utm.my/id/eprint/60555/ http://eprints.utm.my/id/eprint/60555/1/WanNurhayatiWanMFChE2016.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:93817 masters Universiti Teknologi Malaysia, Faculty of Chemical Engineering Faculty of Chemical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Wan Tajulruddin, Wan Nurhayati Synthesis and characterization of epoxidized palm oil hydrogel
description	A bio-based hydrogel (HPEPO) was synthesized from epoxidized palm oil (EPO) by using ring opening polymerization (ROP) in the presence of a fluoroantimonic acid hexahydrate (HSbF6·6H2O) catalyst, followed by a chemical hydrolysis catalyzed with sodium hydroxide (NaOH). A response surface methodology (RSM) was adopted to optimize the reaction parameters, namely, concentration of NaOH solution, NaOH solution loading and reaction time used during the chemical hydrolysis. The successful ring opening of EPO was confirmed by the disappearance of the epoxy functional group at 833 cm-1 of the Fourier transform infrared and at 2.8 to 3.0 ppm of nuclear magnetic resonance spectra. The increase of melting points of HPEPO was observed in the temperature range between 45 °C to 60 °C, corresponded to the increase of crystalline phase in hydrogel as determined by differential scanning calorimetry. The thermal stability of hydrogel was improved up to 200 °C, as shown by thermogravimetric analysis. Apart from that, the swelling behavior that was largely influenced by the hydrophilic carboxyl group and the hydrophobic alkyl group of hydrogel showed some sensitiveness towards the temperature changes, ranging from 15 °C to 40 °C. Meanwhile, the RSM analysis showed that the optimum conditions for all reaction parameters were achieved at 0.33 M concentration of NaOH solution, 73 mL of NaOH solution loading and 25 hours of reaction time.
format	Thesis
qualification_level	Master's degree
author	Wan Tajulruddin, Wan Nurhayati
author_facet	Wan Tajulruddin, Wan Nurhayati
author_sort	Wan Tajulruddin, Wan Nurhayati
title	Synthesis and characterization of epoxidized palm oil hydrogel
title_short	Synthesis and characterization of epoxidized palm oil hydrogel
title_full	Synthesis and characterization of epoxidized palm oil hydrogel
title_fullStr	Synthesis and characterization of epoxidized palm oil hydrogel
title_full_unstemmed	Synthesis and characterization of epoxidized palm oil hydrogel
title_sort	synthesis and characterization of epoxidized palm oil hydrogel
granting_institution	Universiti Teknologi Malaysia, Faculty of Chemical Engineering
granting_department	Faculty of Chemical Engineering
publishDate	2016
url	http://eprints.utm.my/id/eprint/60555/1/WanNurhayatiWanMFChE2016.pdf
_version_	1747817759452954624

Synthesis and characterization of epoxidized palm oil hydrogel

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