Study of chemical and thermal properties of kenaf biomass-based polylactic acid (PLA)

The development of polylactic acid (PLA) from natural source remains a great challenge. PLA can be produced from its monomer (i.e. lactic acid) via fermentation process. In this study, the production of PLA from kenaf biomass was investigated. It was started with the introduction of kenaf biomass as...

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Main Authors:	Mohd Nasir, Nur Aimi, Anuar, Hazleen, Mel, Maizirwan, Othman, Rashidi, Mohamed, Nurhafizah Seeni, Mohd Ithnin, Ahmad Fitrie, Uyup, Mohd Khairun Anwar
Format:	Article
Language:	English English
Published:	American-Eurasian Network for Scientific Information 2014
Subjects:	TP1080 Polymers, plastics and their manufacture
Online Access:	http://irep.iium.edu.my/36626/ http://irep.iium.edu.my/36626/ http://irep.iium.edu.my/36626/1/Aimi_AEB.pdf http://irep.iium.edu.my/36626/4/36626_Study%20of%20Chemical%20_scopus.pdf

id	iium-36626
recordtype	eprints
spelling	iium-366262017-09-26T03:41:45Z http://irep.iium.edu.my/36626/ Study of chemical and thermal properties of kenaf biomass-based polylactic acid (PLA) Mohd Nasir, Nur Aimi Anuar, Hazleen Mel, Maizirwan Othman, Rashidi Mohamed, Nurhafizah Seeni Mohd Ithnin, Ahmad Fitrie Uyup, Mohd Khairun Anwar TP1080 Polymers, plastics and their manufacture The development of polylactic acid (PLA) from natural source remains a great challenge. PLA can be produced from its monomer (i.e. lactic acid) via fermentation process. In this study, the production of PLA from kenaf biomass was investigated. It was started with the introduction of kenaf biomass as the renewable source. Since kenaf is a lignocellulosic material, pretreatment process is preferable prior to the fermentation process. Different types of pretreatment methods have been investigated. However, the dilute acid hydrolysis method has been chosen in this project due to its outstanding advantages compared to other processes. After the pretreatment process, kenaf biomass was degraded twice with own isolatedRhizopusoryzae strain in the fermentation process. Next, polymerization process was performed to produce PLA. Polylactic acid obtained was analyzed via Fourier transform infrared (FTIR) and differential scanning calorimetry (DSC). From the FTIR analysis, it can be seen that PLA was successfully produced from kenaf biomass especially at 1,741.42 cm-1 and the band around the region of 1,650-1,450 cm-1when compared to the commercial PLA. In terms of thermal properties, the glass transition temperature (Tg) of PLA from kenaf biomass was around 74.83oC, with its melting temperature (Tm) was in the range of 122 to 125oC, whereas its crystallization temperature (Tc) was not clearly observed. Low molecular weight (444 to 543 g/mol) and low polydispersity index (PD) (1.2) of PLA produced from kenaf biomass by gel permeation chromatography (GPC) analysis indicated that the polymer hasa poor stability state. American-Eurasian Network for Scientific Information 2014 Article PeerReviewed application/pdf en http://irep.iium.edu.my/36626/1/Aimi_AEB.pdf application/pdf en http://irep.iium.edu.my/36626/4/36626_Study%20of%20Chemical%20_scopus.pdf Mohd Nasir, Nur Aimi and Anuar, Hazleen and Mel, Maizirwan and Othman, Rashidi and Mohamed, Nurhafizah Seeni and Mohd Ithnin, Ahmad Fitrie and Uyup, Mohd Khairun Anwar (2014) Study of chemical and thermal properties of kenaf biomass-based polylactic acid (PLA). Advances in Environmental Biology, 8 (3 Spec. Issue). pp. 633-638. ISSN 1995-0756 E-ISSN 1998-1066 http://www.aensiweb.com/aeb.html
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	TP1080 Polymers, plastics and their manufacture
spellingShingle	TP1080 Polymers, plastics and their manufacture Mohd Nasir, Nur Aimi Anuar, Hazleen Mel, Maizirwan Othman, Rashidi Mohamed, Nurhafizah Seeni Mohd Ithnin, Ahmad Fitrie Uyup, Mohd Khairun Anwar Study of chemical and thermal properties of kenaf biomass-based polylactic acid (PLA)
description	The development of polylactic acid (PLA) from natural source remains a great challenge. PLA can be produced from its monomer (i.e. lactic acid) via fermentation process. In this study, the production of PLA from kenaf biomass was investigated. It was started with the introduction of kenaf biomass as the renewable source. Since kenaf is a lignocellulosic material, pretreatment process is preferable prior to the fermentation process. Different types of pretreatment methods have been investigated. However, the dilute acid hydrolysis method has been chosen in this project due to its outstanding advantages compared to other processes. After the pretreatment process, kenaf biomass was degraded twice with own isolatedRhizopusoryzae strain in the fermentation process. Next, polymerization process was performed to produce PLA. Polylactic acid obtained was analyzed via Fourier transform infrared (FTIR) and differential scanning calorimetry (DSC). From the FTIR analysis, it can be seen that PLA was successfully produced from kenaf biomass especially at 1,741.42 cm-1 and the band around the region of 1,650-1,450 cm-1when compared to the commercial PLA. In terms of thermal properties, the glass transition temperature (Tg) of PLA from kenaf biomass was around 74.83oC, with its melting temperature (Tm) was in the range of 122 to 125oC, whereas its crystallization temperature (Tc) was not clearly observed. Low molecular weight (444 to 543 g/mol) and low polydispersity index (PD) (1.2) of PLA produced from kenaf biomass by gel permeation chromatography (GPC) analysis indicated that the polymer hasa poor stability state.
format	Article
author	Mohd Nasir, Nur Aimi Anuar, Hazleen Mel, Maizirwan Othman, Rashidi Mohamed, Nurhafizah Seeni Mohd Ithnin, Ahmad Fitrie Uyup, Mohd Khairun Anwar
author_facet	Mohd Nasir, Nur Aimi Anuar, Hazleen Mel, Maizirwan Othman, Rashidi Mohamed, Nurhafizah Seeni Mohd Ithnin, Ahmad Fitrie Uyup, Mohd Khairun Anwar
author_sort	Mohd Nasir, Nur Aimi
title	Study of chemical and thermal properties of kenaf biomass-based polylactic acid (PLA)
title_short	Study of chemical and thermal properties of kenaf biomass-based polylactic acid (PLA)
title_full	Study of chemical and thermal properties of kenaf biomass-based polylactic acid (PLA)
title_fullStr	Study of chemical and thermal properties of kenaf biomass-based polylactic acid (PLA)
title_full_unstemmed	Study of chemical and thermal properties of kenaf biomass-based polylactic acid (PLA)
title_sort	study of chemical and thermal properties of kenaf biomass-based polylactic acid (pla)
publisher	American-Eurasian Network for Scientific Information
publishDate	2014
url	http://irep.iium.edu.my/36626/ http://irep.iium.edu.my/36626/ http://irep.iium.edu.my/36626/1/Aimi_AEB.pdf http://irep.iium.edu.my/36626/4/36626_Study%20of%20Chemical%20_scopus.pdf
first_indexed	2023-09-18T20:52:28Z
last_indexed	2023-09-18T20:52:28Z
_version_	1777410085414240256

Study of chemical and thermal properties of kenaf biomass-based polylactic acid (PLA)

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