Functionalization of lamellar chalcogenides (2D) and its application in nanocomposites of olefin polymer

• Grant number: 16/14493-7
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: November 01, 2016
• End date: December 22, 2021
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: Edson Roberto Leite
• Grantee: Rebecca Faggion Albers
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
• Associated research grant: 13/07296-2 - CDMF - Center for the Development of Functional Materials, AP.CEPID
• Associated scholarship(s): 17/22304-2 - Fabrication of highly-loaded composites through magnetic assembly of functionalized MoS2 flakes, BE.EP.DR

Abstract

Two dimensional materials (2D) have attracted much attention from the scientifica comunity, owe to its distinct behavior when compared to the bulk material. 2D-MoS2 is the lamellar transition metal chalcogenide most studied in the world, because of its thermal, electrical and mechanical superior properties. Recently, polymers have been invorporated to the MoS2 structure with the purpose of enhance the final material properties. For the polymer nanocomposite to be obtained, it's necessary a great amount of material, and the composite can be obtained in a single step by exfoliating MoS2, in a organic solvent, assisted by polymer, through ultrassonication. The main objective of this project is studying the mechanical exfoliation process of MoS2 in polymeric solution, formulating solvents and polymers mixtures, with the ideal precursors concentrations, as well as adjust the best reaction conditions to maximize the exfoliation efficiency for each material, so that its application could be viable. The composites will be characterized by transmission electron microscopy, atomic force microscopy, Raman, FTIR and X-ray photoelectron spectroscopies, X-ray diffratometyr and thermogravimetric analysis.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

FAGGION ALBERS, REBECCA; YAN, WENQING; ROMIO, MATTEO; LEITE, EDSON R.; SPENCER, NICHOLAS D.; MATYJASZEWSKI, KRZYSZTOF; BENETTI, EDMONDO M.. Mechanism and application of surface-initiated ATRP in the presence of a Zn-0 plate. Polymer Chemistry, v. 11, n. 44, p. 7009-7014, NOV 28 2020. (16/14493-7, 17/22304-2)

ALBERS, REBECCA FAGGION; MAGRINI, TOMMASO; ROMIO, MATTEO; LEITE, EDSON R.; LIBANORI, RAFAEL; STUDART, ANDRE R.; BENETTI, EDMONDO M.. Fabrication of Three-Dimensional Polymer-Brush Gradients within Elastomeric Supports by Cu-0-Mediated Surface-Initiated ATRP. ACS MACRO LETTERS, v. 10, n. 9, p. 1099-1106, SEP 21 2021. (16/14493-7, 17/22304-2)