A comparative study of polyethylene and polyethylene/C60 nanocomposites modified with organic peroxide. Issue 1 (16th November 2012)

• Record Type: Journal Article
• Authors: Wan, Dong; Xing, Haiping; Liu, Feng; Wang, Lu; Wang, Yujie; Tan, Haiying; Jiang, Zhiwei; Tang, Tao
• Is Part Of: Journal of applied polymer science. Volume 129:Issue 1(2013:Jul. 05)
• Page Start: 371
• Page End: 382
• Publication Date: 2012-11-16
• Subjects: Polymers -- Periodicals; Polymerization -- Periodicals; 668.9
• DOI: 10.1002/app.38615
• Languages: English
• ISSNs: 0021-8995

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Polyethylene (PE)/fullerene C₆₀ nanocomposites, and PE samples for comparison in the presence of 0.1 wt % and 0.3 wt % 2, 5‐dimethyl‐2, 5(tert‐butylperoxy) hexane peroxide (DHBP) were prepared by melt mixing. FTIR characterization showed that reactive C₆₀ could be grafted onto PE chains via a radical mechanism. As a result, the dispersion state of C₆₀ was improved, and the chain extension reaction of PE macroradicals and final topological structures were largely influenced. Linear viscoelastic response of PE and PE/C₆₀ nanocomposites containing the same content of peroxide showed much difference. Furthermore, the results of dynamic time sweep tests demonstrated that the addition of C₆₀ could accelerate chain extension reaction. The presence of C₆₀ could largely improve the thermal stability of PE due to the radical scavenging nature of C₆₀. However, the crystallization behavior, melting behavior and mechanical properties of both PE and PE/C₆₀ samples were mainly determined by the content of peroxide. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013</p> </abstract>