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Study of a new synthetic route for the encapsulation of ZnO nanoparticles by raft-mediated emulsion polymerization

Grant number: 19/11749-9
Support type:Scholarships abroad - Research Internship - Scientific Initiation
Effective date (Start): July 15, 2020
Effective date (End): October 14, 2020
Field of knowledge:Engineering - Chemical Engineering - Chemical Technology
Principal researcher:Amilton Martins dos Santos
Grantee:Gabriel da Silva Motta
Supervisor abroad: Elodie Bourgeat-Lami
Home Institution: Escola de Engenharia de Lorena (EEL). Universidade de São Paulo (USP). Lorena , SP, Brazil
Research place: Université Claude Bernard Lyon 1, France  
Associated to the scholarship:18/20682-2 - Study of a new synthetic route for the encapsulation of ZnO nanoparticles via controlled radical polymerization of the RAFT emulsion type, BP.IC

Abstract

In the current scientific scenario, both the academic community and the industry have given great importance to the study and improvement of the techniques of incorporation of inorganic nanoparticles into polymer matrixes. The nanostructured materials stand out due to their innumerable properties and technological potentialities that provide several benefits for the most varied applications. Among the nanofillers used, the zinc oxide (ZnO) due to its relevant properties have been showing some prominence. The main objective of this project is to develop a simple and optimized synthetic route that allows the encapsulation of ZnO nanoparticles in polymeric matrixes. The strategy is based on the use of the RAFT-mediated emulsion polymerization. Initially it will be studied the adsorption of a chain transfer agent of RAFT type, called in this project as CTARAFT. Then, the encapsulation of the ZnO nanoparticles will be made by emulsion polymerization without surfactant of the methyl methacrylate (MMA), n-butyl acrylate (BA) and acrylic acid (AA) in a continuous process. Through the proposed synthetic route, it is expected that the chosen CTARAFT allows the encapsulation of the nanofiller by the polymer matrix, acting as colloidal stabilizer of the hybrid particles that will be formed at the end of the polymerization reactions. This project is linked to the FAPESP 2018/20682-2 project, coordinated in Brazil by Prof. Dr. Amilton Martins dos Santos and developed in partnership with the group of Dr. Elodie bourgeat-Lami, of the LCPP/C2P2/CNRS, in Lyon, France. (AU)

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