Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/14664

TitleBiobased grafted polyesters prepared by in situ ring-opening polymerization
Author(s)Moura, I.
Nogueira, R.
Legare, Véronique Bounor
Machado, A. V.
KeywordsEthyl vinyl acetate copolymer
e-Caprolactone
Lactide
In situ polymerization
Biodegradable
epsilon-Ca prolactone
-Caprolactone
Issue dateJul-2011
PublisherElsevier
JournalReactive and Functional Polymers
Abstract(s)EVA-g-PLA and EVA-g-PCL copolymers were synthesized by in situ polymerization of e-caprolactone and lactide, in the presence of molten ethylene vinyl acetate (EVA) copolymer, using titanium phenoxide (Ti(OPh)4) as initiator. The materials prepared in a internal batch mixer were characterized by 1H NMR, SEM, FTIR, rheology, DSC, TGA and SEC and the synthesized copolymers identified through selective extraction. The mechanical performance was characterized by tensile tests and the biodegradability by the biochemical oxygen demand method. The results indicated that approximately 11 wt.% of EVA-g- PCL and 8 wt.% of EVA-g-PLA copolymers were synthesized. Moreover, the increase of the Young modulus was higher for the sample containing EVA-g-PCL. This sample also exhibited the higher biodegradability (36%).
TypeArticle
URIhttp://hdl.handle.net/1822/14664
DOI10.1016/j.reactfunctpolym.2011.03.012
ISSN1381-5148
Publisher versionwww.elsevier.com/ locate/react
Peer-Reviewedyes
AccessRestricted access (UMinho)
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series
IPC - Artigos em revistas científicas internacionais com arbitragem

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