Preparation and characterization of cellulose acet... - BV FAPESP
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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Preparation and characterization of cellulose acetate/polysiloxane composites

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Autor(es):
Brandao, Larissa Reis [1] ; Pagotto Yoshida, Inez Valeria [1] ; Felisberti, Maria Isabel [1] ; Goncalves, Maria do Carmo [1]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Univ Estadual Campinas UNICAMP, Inst Chem, BR-13083970 Campinas, SP - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: Cellulose; v. 20, n. 6, p. 2791-2802, DEC 2013.
Citações Web of Science: 7
Resumo

Composites of cellulose acetate and polysiloxane were prepared using 3-isocyanatepropyltriethoxysilane, as a coupling agent. The structure, the thermal and dynamic-mechanical behaviors, and the morphology of the obtained composites were investigated. The composites showed phase separation which was confirmed by the presence of siloxane micro- and nano-domains dispersed in the cellulose acetate matrix, with good interfacial adhesion between the phases. The results demonstrated that the incorporation of a polysiloxane phase on a cellulose acetate matrix caused a decrease in the glass transition temperature, storage modulus and hardness. The proposed methodology was seen to be convenient for the preparation of cellulose acetate/polysiloxane composites with useful properties. (AU)

Processo FAPESP: 10/17804-7 - Compósitos poliméricos
Beneficiário:Maria Isabel Felisberti
Modalidade de apoio: Auxílio à Pesquisa - Temático