Premium
Infrared study of the effect of heat on wool
Author(s) -
Moharram M. A.,
AbdelRehim T. Z.,
Rabie S. M.
Publication year - 1981
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.1981.070260315
Subject(s) - wool , infrared , materials science , infrared spectroscopy , absorption (acoustics) , analytical chemistry (journal) , vacuum ultraviolet , absorption band , ultra high vacuum , absorption spectroscopy , chemistry , composite material , optics , nanotechnology , chromatography , organic chemistry , physics
The infrared spectra of wool heated in vacuum and in air to different temperatures ranging from 120 to 250°C were investigated. It was found that certain absorption bands disappear when wool is heated in vacuum to 180°C and in air to 120°C for 2 hr. Also, the results showed that the intensities of the C=O stretching band at 1660 cm −1 , N–H stretching band at 3325 cm −1 and the C–H stretching band at 2940 cm −1 decrease when wool is heated in vacuum to 180°C and in air to 120°C. The spectra of the samples heated in vacuum to 250°C and in air to 225°C exhibited strong absorption bands belonging to the carboxyl and sulfonate groups.