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Amin Heidari

Amin Heidari

Academic rank: Assistant Professor
ORCID:
Education: PhD.
ScopusId:
HIndex:
Faculty: 1
Address:
Phone: 09365365331

Research

Title
In situ synthesis of ultrahigh molecular weight polyethylene/graphene oxide nanocomposite using the immobilized single-site catalyst
Type
JournalPaper
Keywords
Disentangled, immobilization, nanocomposites, single-site catalyst, ultrahigh molecular weight polyethylene
Year
2017
Journal POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING
DOI
Researchers Amin Heidari ، saeid talebi ، mostafa rezaei ، Hasan Keshavarz-Mirzamohamadi ، Elchin Jafariyeh-Yazdi

Abstract

We address the immobilization of single-site catalyst on the graphite oxide (GO) surface using methylaluminoxane. Ethylene polymerization was performed using the immobilized catalyst and the nanocomposite of ultrahigh molecular weight polyethylene (UHMWPE)/GO with less entanglement density was obtained. It was observed that the drawability, mechanical and thermal properties of the produced polymer significantly are affected by the anchoring of polymer chains to the GO nanosheets. The orientation and location of crystalline lamellae and nanosheets were verified by microscopic techniques. Besides, X-ray analysis demonstrated the dispersion of GO within the UHMWPE phase and crystallinity of UHMWPE/GO nanocomposites enhanced during drawing process.