Use este identificador para citar ou linkar para este item: http://repositorio.ital.sp.gov.br/jspui/handle/123456789/290
Título: O-ATRP synthesized poly(β-pinene) blended with chitosan for antimicrobial and antioxidant bio-based films production
Autor(es): Rodrigues, Plínio Ribeiro; et. al.







Palavras-chave: Biopolymer
Blend
Data do documento: 2021
Editor: Elsevier Ltd.
Citação: International Journal of Biological Macromolecules v. 193, p. 425-432, 2021.
Resumo: Antioxidant and antimicrobial activities are important characteristics of active film packaging designed to extend food preservation. In this study, functional bio-based films were produced using different concentrations of antioxidant poly(β-pinene) bio-oligomer synthesized via organocatalyzed atom transfer radical polymerization (O-ATRP) and blended with chitosan of different molecular weights. The structural, mechanical, thermal, solubility, antioxidant, and antimicrobial properties of the films were investigated. The poly(β-pinene)-chitosan blends presented significant pores and irregularities with the increase of poly(β-pinene) concentration over 30%. Chitosan molecular weight did not show any important influence in the physical properties of the blends. Poly (β-pinene) load decreased the materials' tensile strength and melting temperature, exhibiting a plasticizing effect on chitosan chains. The antioxidant and antimicrobial activities of the films were improved by poly(β-pinene) incorporation and mainly depended on its concentration. Therefore, the incorporation of poly(β-pinene) in chitosan films can be an alternative for active packaging production.
URI: http://repositorio.ital.sp.gov.br/jspui/handle/123456789/290
Outros identificadores: 
Aparece nas coleções:Artigos cientificos

Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
O-ATRP synthesized poly(β-pinene).pdf2.35 MBAdobe PDFVisualizar/Abrir


Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.