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Alireza Karimi

Alireza Karimi

Academic rank: Professor
ORCID: https://orcid.org/0000-0001-5006-8642
Education: PhD.
ScopusId: 57217189368
Faculty: Science
Address: Arak University
Phone:

Research

Title
Sulfonic Acid-Functionalized Fe3O4 Reinforced Soluble Polyimide: Synthesis and Properties
Type
JournalPaper
Keywords
Functionalized nanoparticles; magnetic nanoparticles; nanocomposite; polyimide
Year
2016
Journal Polymer-Plastics Technology and Engineering
DOI
Researchers Khalil Faghihi ، ahmad rayisi ، MAHDI AMINI ، Meisam Shabanian ، Alireza Karimi

Abstract

In this study, a series of nanocomposite films based on an aromatic polyimide and sulfonic acidfunctionalized magnetic nanoparticles was successfully prepared via an in situ technique. For this purpose, new soluble aromatic polyimide containing sulfone group as a polymeric matrix of the nanocomposites was synthesized. The surfaces of MNP were grafted with 3-mercaptopropyl trimethoxysilane. Then sulfonic acid-functionalized magnetic nanoparticle was obtained by oxidation of the thiol group. Effects of sulfonic acid-functionalized magnetic nanoparticles on thermal, tensile, and magnetic properties of the prepared nanocomposite films were studied. The magnetic nanoparticles containing the sulfonic acid groups could have strong intermolecular bond interactions between the hydroxyl groups of SO3H and the sulfone and carbonyl groups of the polyimide matrix which caused the better dispersion of nanoparticle and exhibited superior mechanical properties, good magnetic properties, and high thermal stability.