TY  - CONF
T2  - International Symposium on Analytical and Environmental Problems (17.) (2011) (Szeged)
Y1  - 2012///
AV  - public
PB  - SZAB
CY  - Szeged
A1  -  Cadar Oana
A1  -  Paul Maria
A1  -  Roman Cecilia
A1  -  Cadar Sergiu
A1  -  Senila Marin
A1  -  Irsai Isabela
A1  -  Majdik Cornelia
UR  - http://acta.bibl.u-szeged.hu/76437/
TI  - Biodegradation studies of polylactic acid copolymers
M2  - Szeged
VL  - 17
EP  - 258
ID  - acta76437
SN  - 978-963-315-066-5
SP  - 255
KW  - Környezetkémia
KW  -  Biodegradáció
N2  - 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.
N1  - Bibliogr.: 258. p. ; ill. ; összefoglalás angol nyelven
ER  -