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Khalil Faghihi

Khalil Faghihi

Academic rank: Professor
ORCID: https://orcid.org/0000-0001-9884-1788
Education: PhD.
ScopusId: 6603751266
Faculty: Science
Address: Arak University
Phone:

Research

Title
Preparation and characteri zation of new polyamide/mo ntmorillonite nanocomposites containing azo moiety in the main chain
Type
JournalPaper
Keywords
Polyamide–montmorillonite nanocomposite; Thermal and photo behaviors
Year
2016
Journal Arabian Journal of Chemistry
DOI
Researchers Khalil Faghihi ، matin taher ، Mohsen Hajibeygi

Abstract

Abstract Two new samples of polyamide /montmorillonite reinforced nanocomposites containing 4,40-azobenzoic acid moiety in the main chain were synthesized by a convenient solution intercalation technique. Polyamide (PA) 4 as a source of polym er matrix was synthesized by the direct polycondensation reaction of 4,40-azobenzoic acid 2 with 4,40-diamino diphenyl ether 3 in the presence of triphenyl phosphite (TPP), CaCl2, pyridine and N-methyl-2-pyrrolidone (NMP). Morphology and structure of the resulting PA-nanocomposite films 4a and 4b with 10 and 20% silicate particles were characterized by FTIR spectroscopy, X-ray diffraction (XRD) and scanning electron microscopy (SEM). The effect of clay dispersion and the interaction between clay and polymeric chains on the properties of nanocomposites films were investigated by using UV–vis spectroscopy, thermogravimetric analysis (TGA) and water uptake measu rements.