Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/26800
Título: | Effect of PCL and EVA molar mass on the development of sustainable polymers |
Autor(es): | Moura, I. Nogueira, R. Bounor-Legare, Véronique Machado, A. V. |
Palavras-chave: | Biodegradability Copolymers Morphology Transesterification |
Data: | 2014 |
Editora: | Taylor and Francis |
Revista: | Soft Materials |
Resumo(s): | Biodegradable grafted copolymers, EVA-g-PCL, have been synthesized by reactive extrusion, through transesterification reaction between ethylene-vinyl acetate copolymer (EVA) and poly(ε-caprolactone) (PCL) using titanium propoxide (Ti(OPr)4) as catalyst. The effect of EVA and PCL molar mass on the amount of grafted copolymer and materials properties was investigated. The prepared blends were characterized by several analytical techniques, such as, selective extractions, rheology, TGA, DSC, SEM, mechanical properties, and the biodegradability was evaluated based on biochemical oxygen demand method. The results showed that the amount of copolymer increases as the amount of catalyst increases. Moreover, using EVA and PCL with high and low molar mass, respectively, allowed to obtain a material exhibiting properties similar to conventional polymers and higher biodegradability. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/26800 |
DOI: | 10.1080/1539445x.2012.756818 |
ISSN: | 1539-445X 1539-4468 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series IPC - Artigos em revistas científicas internacionais com arbitragem |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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1539445X.2012.pdf Acesso restrito! | 776,62 kB | Adobe PDF | Ver/Abrir |