Graft copolymerization of pu membranes with acrylic acid and crotonic acid using benzoyl peroxide initiator
Loading...
Date
2001-01-28
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
John Wiley & Sons, Inc.
Abstract
To improve water wettability of polyurethane (PU) ,graft copolymerization with acrylic acid (AA) and crotonic acid (CA) was performed using benzoyl peroxide (BO) initiator. The grafting reaction was carried out by placing the membranes in aqueous solutions of AA and CA at constant temperatures. Variations of graft yield with time ,temperature, initiator and monomer concentrations were investigated.The optimum temperature, polymerization time, monomer and initiator concentrations for AA were found to be 70 C; 3h; 1.5 M; 5.0 x 10-2 M and for CA 70 C; 1h; 1.5 M; 4.0 x 10(-2) M , respectively. The grafting membranes were characterized by FTIR spectroscopy and scanning electron microscopy (SEM) analysis and the effect of grafting on equilibrium water content (EWC) of PU membranes was obtained by swelling measurements.
Description
Keywords
Denge su içeriği, Graft kopolimerizasyonu, Poliüretan membranlar, Acrylic acid, Akrilik asit, Polyurethanes, Poliüretanlar, Graft copolymerization, Polyurethane membranes, Crotonic acid, Krotonik asit, FTIR, Equilibrium water content, SEM
Citation
Babayiğit, D. ve M. Pulat. (2001). Journal of Applies Polymer Science. Volume 80, Issue 14, 28 June 2001, Pages: 2690–2695.