Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 89: Issue 3
Biodegradable polymers
Part VI. Biodegradable plastics of soy protein isolate modified with thiourea
Authors:
P. Nanda Ravenshaw College Biodegradable Polymer Research Laboratory, P.G. Department of Chemistry Cuttack 753 003 India

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K. Rao Regional Research Laboratory (CSIR) Bhubaneswar India

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R. Kar Ravenshaw College Biodegradable Polymer Research Laboratory, P.G. Department of Chemistry Cuttack 753 003 India

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P. Nayak Ravenshaw College Biodegradable Polymer Research Laboratory, P.G. Department of Chemistry Cuttack 753 003 India

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Pages:
935–940
Online Publication Date:
11 Aug 2006
Publication Date:
01 Sep 2007
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-006-7491-8
Keywords:
biodegradation; soy protein isolate; thermogravimetric analysis; thiourea
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Abstract  

Potential alternative to petrochemical polymers, soy protein isolate (SPI), a plentily available, natural biopolymer is chemically modified with thiourea at 2.5, 5, 7.5, 10, 15 and 20 mass/mass% for better processing of plastic as a raw material. From the FTIR studies, it has been ascertained that there is no bonding reaction between SPI and thiourea and it acts as a modifier only. Thermogravimetric analysis of the modified material has been followed using a computer analysis method, LOTUS package, developed by us for assigning the degradation mechanism. A number of equations have been used to evaluate the kinetic parameters. The mechanism of degradation of the biopolymer is explained on the basis of the kinetic analysis.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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