Short alkyl chain length ionic liquid as organic m... - BV FAPESP
Busca avançada
Ano de início
Entree
Conteúdo relacionado
(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.)

Short alkyl chain length ionic liquid as organic modifier in polypropylene/clay nanocomposite: a thermal comparative study

Texto completo
Autor(es):
Vedovello, Priscila [1] ; de Oliveira Gomes, Ana Catarina [2] ; da Rocha Oliveira, Lucas Mendonca [1] ; Cruz, Sandra Andrea [1] ; Paranhos, Caio Marcio [1]
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] Univ Fed Sao Carlos, Dept Chem, Polymer Lab, Rod Washington Luiz, Km 235, BR-13565905 Sao Carlos, SP - Brazil
[2] SENAI Innovat Inst Green Chem, Rua Moraes E Silva, 53, Bd 09, BR-20271030 Rio De Janeiro, RJ - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: SN APPLIED SCIENCES; v. 3, n. 5 MAY 2021.
Citações Web of Science: 0
Resumo

The most common polymeric nanocomposites are constituted of organically-modified clays. Generally, these organic modifiers are based on quaternary ammonium salts. These systems have as disadvantage the low thermal resistance of its modifiers under processing. Ionic liquids (IL) with different molecular structures can be used as organic modifier in lamellar clays-based polymeric nanocomposites, being promising not only to increase interactions between the nanoclay and the matrix, but also to increase the thermal resistance. In this study, polypropylene-based/montmorillonite nanocomposites were compared from two different organic modifiers. The use of short alkyl chain length imidazolium-based IL as montmorillonite modifier was investigated in terms of the thermal stability when compared to the usual quaternary ammonium salt surfactant. Integral procedure decomposition temperature was employed to determine the effect of these two different organoclay modifiers in PP-nanocomposites. The activation energy for these samples was calculated using Flynn-Wall-Ozawa (FWO) method. It was also used the multiple linear regression analysis to calculate the activation energy in order to evaluate the accuracy of this method when applied to nanocomposites. (AU)

Processo FAPESP: 11/12410-3 - Líquidos iônicos: novos tensoativos preparação de nanocompósitos poliméricos
Beneficiário:Priscila Vedovello
Modalidade de apoio: Bolsas no Brasil - Iniciação Científica