Grafting of acrylic acid‐co‐itaconic acid onto ePTFE and characterization of water uptake by the graft copolymers
Copyright policy )Grafting of acrylic acid‐co‐itaconic acid onto ePTFE and characterization of water uptake by the graft copolymers
ABSTRACTExpanded polytetrafluoroethylene, ePTFE, is an attractive material for use as the implant in facial reconstruction surgery because it is bioinert; however, its low surface energy does not facilitate a strong interfacial bond with bone and thus for some applications the surfaces need to be modified to enhance their bone‐integration properties. The surface modification of ePTFE membranes with copolymers of acrylic acid (AA) and itaconic acid (IA) using in situ gamma radiation induced grafting has been studied. Solutions with AA mole fractions ranging from 0.4 to 1.0 have been investigated. Graft yields of 35–50% with water uptakes of greater than 300% were obtained using 3 mol L−1 aqueous solutions of the monomers and a total incident dose of 10 kGy. The grafts were characterized by Fourier transform infrared and X‐ray photoelectron spectroscopy analyses and the compositional microstructure of the grafted copolymers was investigated. The water uptake by the grafted membranes displayed a complex dependence on polymer chemistry and topology. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41482.
- University of Queensland Australia
- University of Queensland Australia
- University of Queensland Australia
Membranes, Grafting, 2508 Surfaces, Coatings and Films, 540, 1600 Chemistry, 2507 Polymers and Plastics, Biomedical applications, Coatings and Films, Radical polymerization, 2508 Surfaces, Swelling, 2505 Materials Chemistry
Membranes, Grafting, 2508 Surfaces, Coatings and Films, 540, 1600 Chemistry, 2507 Polymers and Plastics, Biomedical applications, Coatings and Films, Radical polymerization, 2508 Surfaces, Swelling, 2505 Materials Chemistry
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