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Characterization of structure of comblike polymer by pyrolysis gas chromatography and Fourier transform infrared spectroscopy
Author(s) -
Yang Rui,
Li Guoping,
Wang Kunhua
Publication year - 2001
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1446
Subject(s) - fourier transform infrared spectroscopy , branching (polymer chemistry) , monomer , pyrolysis , absorbance , polymer , fourier transform , infrared , characterization (materials science) , infrared spectroscopy , materials science , spectroscopy , polymer chemistry , analytical chemistry (journal) , fourier transform spectroscopy , chemistry , organic chemistry , chemical engineering , chromatography , composite material , nanotechnology , mathematics , physics , optics , quantum mechanics , engineering , mathematical analysis
The characterization of branching in comblike polymers using high‐resolution pyrolysis gas chromatography (HRPGC) and Fourier transform infrared spectroscopy (FTIR) is investigated. The branching type can be identified from characteristic peaks of monomer and a group of dimers in pyrograms derived from α‐ and β‐scission of branched atoms. By resolving the overlapping bands between 2800–3000 cm −1 , the relative absorbance of CH 2 can be used to calculate the average branch length L . This method is helpful in evaluating the property of drag‐reduction agents. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 81: 359–363, 2001