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An effective method to identify the type and content of α-olefin in polyolefine copolymer by Fourier Transform Infrared–Differential Scanning Calorimetry
Article first published online: 4 MAY 2009
DOI: 10.1002/app.30249
Copyright © 2009 Wiley Periodicals, Inc.
1097-4628/asset/cover.gif?v=1&s=e26a028b9ea53b1db3bdcdf154d4f4fab00f90a5 "Journal of Applied Polymer Science")
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How to Cite
Zhang, Q., Chen, P., Xie, X. and Cao, X. (2009), An effective method to identify the type and content of α-olefin in polyolefine copolymer by Fourier Transform Infrared–Differential Scanning Calorimetry. J. Appl. Polym. Sci., 113: 3027–3032. doi: 10.1002/app.30249
Publication History
- Issue published online: 1 JUN 2009
- Article first published online: 4 MAY 2009
- Manuscript Accepted: 14 JUL 2008
- Manuscript Received: 2 NOV 2007
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Keywords:
- FTIR-DSC;
- identification;
- polyolefine;
- copolymer;
- α-olefin
Abstract
A new method for identification of ethylene/α-olefin copolymer was established by Fourier Transform Infared (FTIR)–Differential Scanning Calorimetery (DSC) in this article. DSC and FTIR spectroscopy techniques were used to analysis the type and content of α-olefin in polyolefine copolymer. FTIR was available to identify the structures of polyethylene and copolymers of ethylene with different α-olefins. The type of polyethylene can be determined by the peak position of 1378 and 1369 cm−1. According to the peak location of 770, 784, and 895 cm−1, the type of α-olefin can also be determined. DSC method was used to decide the position of melting peaks. The quantitative investigation of the content of α-olefin in polyethylene was calculated by the formula: −ln(CH2 mol fraction) = −0.331+135.5/Tm. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009