In Situ Synthesis of Ultrahigh Molecular Weight Polyethylene/Graphene Oxide Nanocomposite Using the Immobilized Single-site Catalyst

被引：5

作者：

Heidari, Amin ^{[1
]}

Talebi, Saeid ^{[1
]}

Rezaei, Mostafa ^{[1
]}

Keshavarz-Mirzamohamadi, Hasan ^{[1
]}

Jafariyeh-Yazdi, Elchin ^{[2
]}

机构：

[1] Sahand Univ Technol, Inst Polymer Mat, Dept Polymer Engn, Tabriz 513351996, Iran

[2] Sahand Univ Technol, Dept Chem Engn, Tabriz, Iran

来源：

POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING | 2018年 / 57卷 / 13期

关键词：

Disentangled; immobilization; nanocomposites; single-site catalyst; ultrahigh molecular weight polyethylene; POLYMERIZATION-FILLING TECHNIQUE; X-RAY-DIFFRACTION; MECHANICAL-PROPERTIES; GRAPHENE OXIDE; CHAIN MOBILITY; ENTANGLED POLYETHYLENE; OLEFIN POLYMERIZATION; CRYSTALLINE FRACTION; REACTOR POWDER; WEAR BEHAVIOR;

D O I：

10.1080/03602559.2017.1381246

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

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. [GRAPHICS] .

引用

页码：1313 / 1324

页数：12

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