Polypropylene/Graphene Oxide Nanocomposites Prepared by In Situ Ziegler-Natta Polymerization

被引：234

作者：

Huang, Yingjuan ^{[2
,3
]}

Qin, Yawei ^{[2
,3
]}

Zhou, Yong ^{[2
]}

Niu, Hui ^{[2
]}

Yu, Zhong-Zhen ^{[1
]}

Dong, Jin-Yong ^{[2
]}

机构：

[1] Beijing Univ Chem Technol, Beijing Key Lab Preparat & Proc Novel Polymer Mat, Dept Polymer Engn, Coll Mat Sci & Engn, Beijing 100029, Peoples R China

[2] Chinese Acad Sci, Inst Chem, Joint Lab Polymer Sci & Mat, CAS Key Lab Engn Plast, Beijing 100190, Peoples R China

[3] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

来源：

CHEMISTRY OF MATERIALS | 2010年 / 22卷 / 13期

基金：

美国国家科学基金会;

关键词：

GRAPHITE OXIDE; FUNCTIONALIZED GRAPHENE; POLYETHYLENE/MONTMORILLONITE NANOCOMPOSITES; COMPOSITES; ENHANCEMENT; DISPERSIONS; STABILITY; OXIDATION; ETHYLENE; SURFACE;

D O I：

10.1021/cm100998e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This paper reports the first example of preparation of polypropylene/graphene oxide (PP/GO) nanocomposites via in situ Ziegler-Natta polymerization. A Mg/Ti catalyst species was incorporated into GO via surface functional groups including -OH and -COOH, giving a supported catalyst system primarily structured by nanoscale, predominantly single GO sheet. Subsequent propylene polymerization led to the in situ formation of PP matrix, which was accompanied by the nanoscale exfoliation of GO, as well as its gradual dispersion. Morphological examination of the ultimate PP/GO nanocomposites by TEM and SEM techniques revealed effective dispersion in nanoscale of GO in PP matrix. High electrical conductivity was discovered with thus prepared PP/GO nanocomposites; for example, at a GO loading of 4.9 wt %, sigma(c) was measured at 0.3 S.m(-1).

引用

页码：4096 / 4102

页数：7

共 51 条

[1]

BOEHM HP, 1968, CARBON, V6, P226

[2] Graphite oxide:: Chemical reduction to graphite and surface modification with primary aliphatic amines and amino acids [J].