Characterization of structure of comblike polymer by pyrolysis gas chromatography and Fourier transform infrared spectroscopy

Authors
Yang, R Li, GP Wang, KH
Citation
R. Yang et al., Characterization of structure of comblike polymer by pyrolysis gas chromatography and Fourier transform infrared spectroscopy, J APPL POLY, 81(2), 2001, pp. 359-363
Citations number
7
Categorie Soggetti
Organic Chemistry/Polymer Science","Material Science & Engineering
Journal title
JOURNAL OF APPLIED POLYMER SCIENCE
ISSN journal
00218995 → ACNP
Volume
81
Issue
2
Year of publication
2001
Pages
359 - 363
Database
ISI
SICI code
0021-8995(20010711)81:2<359:COSOCP>2.0.ZU;2-A
Abstract
The characterization of branching in comblike polymers using high-resolutio n pyrolysis gas chromatography (HRPGC) and Fourier transform infrared spect roscopy (FTIR) is investigated. The branching type can be identified from c haracteristic peaks of monomer and a group of dimers in pyrograms derived f rom alpha- and beta -scission of branched atoms. By resolving the overlappi ng bands between 2800-3000 cm(-1), the relative absorbance of CH2 can be us ed to calculate the average branch length L. This method is helpful in eval uating the property of drag-reduction agents. (C) 2001 John Wiley & Sons, I nc.