Polyethylene/Graphite Nanocomposites Obtained by In Situ Polymerization

被引：110

作者：

Fim, Fabiana de C. ^{[1
]}

Guterres, Jonathan M. ^{[2
]}

Basso, Nara R. S. ^{[2
]}

Galland, Griselda B. ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, Inst Quim, BR-91570970 Porto Alegre, RS, Brazil

[2] Pontificia Univ Catolica Rio Grande do Sul, Fac Quim, BR-90619900 Porto Alegre, RS, Brazil

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2010年 / 48卷 / 03期

关键词：

graphite nanosheet; in situ polymerization; metallocene catalysts; nanocomposite; polyethylene; polyolefins; METALLOCENE-CATALYZED POLYMERIZATION; POLYPROPYLENE/GRAPHITE NANOCOMPOSITES; ELECTRICAL-PROPERTIES; EXFOLIATED GRAPHITE; POLYSTYRENE/GRAPHITE NANOCOMPOSITES; SOLUTION INTERCALATION; COMPOSITES; ETHYLENE;

D O I：

10.1002/pola.23822

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理];

摘要：

The synthesis of polyethylene/graphite nanocomposites by in situ polymerization was achieved using the catalytic system Cp(2)ZrCl(2) (bis(cyclopentadienyl)zirconium(IV) dichloride)/ methylaluminoxane (MAO). Graphite with nano dimensions, previously treated with MAO, was added into the reactor as filler at percentages of 1, 2, and 5% (w/w). XRD analysis showed that the chemical and thermal treatments employed preserve the structure of the graphite sheets. The formation of graphite nanosheets and nanocomposites was confirmed by TEM and AFM. TEM micrographics showed that the polyethylene grew between the graphene nanosheets, giving intercalated and exfoliated graphite nanocomposites. (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 692-698, 2010

引用

页码：692 / 698

页数：7

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