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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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Author(s):
Vedovello, Priscila [1] ; de Oliveira Gomes, Ana Catarina [2] ; da Rocha Oliveira, Lucas Mendonca [1] ; Cruz, Sandra Andrea [1] ; Paranhos, Caio Marcio [1]
Total Authors: 5
Affiliation:
[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
Total Affiliations: 2
Document type: Journal article
Source: SN APPLIED SCIENCES; v. 3, n. 5 MAY 2021.
Web of Science Citations: 0
Abstract

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)

FAPESP's process: 11/12410-3 - Ionic liquids: new class of tensoactives on the preparation of polymeric nanocomposites.
Grantee:Priscila Vedovello
Support Opportunities: Scholarships in Brazil - Scientific Initiation