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Surface Modification of Poly(vinyl alcohol) Fibers
Author(s) -
Chirowodza Helen,
Sanderson Ronald D.
Publication year - 2010
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.201000185
Subject(s) - materials science , vinyl alcohol , grafting , surface modification , cationic polymerization , glyoxal , fiber , fourier transform infrared spectroscopy , polymer chemistry , aqueous solution , chemical engineering , synthetic fiber , composite material , polymer , organic chemistry , chemistry , engineering
The surfaces of PVA fibers prepared by in situ fibrillation were modified by first crosslinking using glyoxal and then attaching cationic and anionic groups by grafting. Crosslinking prior to modification was beneficial in minimizing the solubility of the fibers in the aqueous medium in which they were modified. Heterogeneous modification techniques were employed so that fiber properties could be preserved. PAA and PDMC were grafted from the PVA microfibrils using the KPS/NaS 2 O 3 redox initiating system. Grafting was confirmed by FTIR and NMR spectroscopy. The modified PVA fibers were also analyzed by DSC, TGA, and SEM.