Biodegradation studies of polylactic acid copolymers

Cadar Oana and Paul Maria and Roman Cecilia and Cadar Sergiu and Senila Marin and Irsai Isabela and Majdik Cornelia: Biodegradation studies of polylactic acid copolymers.

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Abstract

Medium molecular weight copolymers were synthesized by the condensation of L-lactic acid (LA), terephthalic acid (TPA) and 1,3-propanediol (PDO). The obtained copolymers were characterized for acid value, hydroxyl value and number average molecular weight. Also, the biodegradation behavior by different fungal species (A spergillus niger, A spergillu s versicolor, A lternaría altern a ta and P enicilliu m ) was performed. The degree of biodegradation was examined by weight loss. It was observed that the biodegradation of copolymer with higher quantity of lactic acid was faster and more effective than the biodegradation of copolymer with smaller quantity of lactic acid.

Item Type:	Conference or Workshop Item
Journal or Publication Title:	Proceedings of the International Symposium on Analytical and Environmental Problems
Date:	2012
Volume:	17
ISBN:	978-963-315-066-5
Page Range:	pp. 255-258
Language:	English
Publisher:	SZAB
Place of Publication:	Szeged
Event Title:	International Symposium on Analytical and Environmental Problems (17.) (2011) (Szeged)
Event Type:	Conference
Event Location:	Szeged
Event Dates:	2011. szeptember 19.
Related URLs:	http://acta.bibl.u-szeged.hu/76381/
Uncontrolled Keywords:	Környezetkémia, Biodegradáció
Additional Information:	Bibliogr.: 258. p. ; ill. ; összefoglalás angol nyelven
Subjects:	02. Engineering and technology 02. Engineering and technology > 02.07. Environmental biotechnology
Date Deposited:	2022. Aug. 10. 10:19
Last Modified:	2022. Aug. 22. 10:23
URI:	http://acta.bibl.u-szeged.hu/id/eprint/76437

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