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Carbodiimide catalysis in cross‐linking of cotton cellulose with 1,2,3,4‐butanetetracarboxylic acid
Author(s) -
Choi HyungMin,
Mahmood Tariq,
Li Jiang Dong,
Schlup John
Publication year - 1995
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.1995.070550220
Subject(s) - cyanamide , sodium hypophosphite , carbodiimide , cellulose , catalysis , urea , chemistry , polymer chemistry , organic chemistry , electroplating , layer (electronics)
This study examined carbodiimde catalysis (cyanamide, dicyandiamide, disodium cyanamide) in the cross‐linking of cotton cellulose with 1,2,3,4‐butanetetracarboxylic acid (BTCA). Considerable improvement in the smooth drying appearance of the treated cotton substantiated the fact that cellulose cross‐linking has been achieved by BTCA in the presence of carbodiimide. Bath pH was a very important factor in determining the performance properties of the treated cotton. Two possible reaction mechanisms were proposed: direct esterification and anhydride intermediate formation. Both pathways involved the formation of urea. Semiquantitative analyses of the spectra obtained by Fourier transform infrared spectroscopy revealed that the cyanamide was somewhat less effective than were dicyandiamide and sodium hypophosphite in esterification efficiency. © 1995 John Wiley & Sons, Inc.