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Title: Graft copolymerization of pu membranes with acrylic acid and crotonic acid using benzoyl peroxide initiator
Authors: Babayiğit, Doğan
Pulat, Mehlika
Keywords: Denge su içeriği
Graft kopolimerizasyonu
Poliüretan membranlar
Acrylic acid
Akrilik asit
Graft copolymerization
Polyurethane membranes
Crotonic acid
Krotonik asit
Equilibrium water content
Issue Date: 28-Jan-2001
Publisher: John Wiley & Sons, Inc.
Citation: Babayiğit, D. ve M. Pulat. (2001). Journal of Applies Polymer Science. Volume 80, Issue 14, 28 June 2001, Pages: 2690–2695.
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.
ISSN: 1097-4628
Appears in Collections:Makale 2000-2009 yılları

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