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Cotton fabric graft copolymerization using microwave plasma. I. Universal attenuated total reflectance–FTIR study
Author(s) -
Abidi Noureddine,
Hequet Eric
Publication year - 2004
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.20442
Subject(s) - attenuated total reflection , fourier transform infrared spectroscopy , copolymer , monomer , materials science , plasma , microwave , grafting , cellulose , polymer chemistry , chemical engineering , analytical chemistry (journal) , chemistry , composite material , polymer , chromatography , organic chemistry , physics , quantum mechanics , engineering
The effect of microwave plasma on lightweight cotton fabric was investigated. N 2 ‐plasma, O 2 ‐plasma, and Ar‐plasma were obtained using a microwave generator at 2.45 GHz under vacuum. The universal attenuated total reflectance–Fourier transform infrared (UATR–FTIR) instrument was used to monitor the changes created after N 2 ‐, O 2 ‐, and Ar‐plasma treatments. The exposure of cotton fabrics to the plasma for 240 s with a microwave power of 500 W was sufficient to create active carbonyl groups, as shown by the presence of a peak around 1725 cm −1 in the FTIR spectra of the treated cotton fabrics. Ar‐plasma was found to generate more active groups than N 2 ‐ and O 2 ‐plasmas. The active centers created within the cellulose chains were used to initiate copolymerization reactions with vinyl monomers to impart hydrophobic character to lightweight cotton fabric. The efficiency of the grafting process and the presence of grafted monomers on fabric surface were confirmed using UATR–FTIR. Testing of treated fabric revealed that excellent water repellency was obtained. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 93: 145–154, 2004