Grafting of acrylic acid-co-itaconic acid onto ePTFE and characterization of water uptake by the graft copolymers

Norsyahidah Mohd Hidzir, Qianhui Lee, David J T Hill, Firas Rasoul, Lisbeth Grøndahl

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Expanded 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.

Original languageEnglish
JournalJournal of Applied Polymer Science
Volume132
Issue number7
DOIs
Publication statusPublished - 1 Feb 2015
Externally publishedYes

Fingerprint

Graft copolymers
Grafts
Acrylics
Bone
Copolymers
Membranes
Acids
Water
Polytetrafluoroethylene
Interfacial energy
Gamma rays
Surgery
Surface treatment
Fourier transforms
Polymers
X ray photoelectron spectroscopy
Monomers
Topology
Infrared radiation
Polytetrafluoroethylenes

Keywords

  • biomedical applications
  • grafting
  • membranes
  • radical polymerization
  • swelling

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics
  • Surfaces, Coatings and Films
  • Chemistry(all)

Cite this

Grafting of acrylic acid-co-itaconic acid onto ePTFE and characterization of water uptake by the graft copolymers. / Mohd Hidzir, Norsyahidah; Lee, Qianhui; Hill, David J T; Rasoul, Firas; Grøndahl, Lisbeth.

In: Journal of Applied Polymer Science, Vol. 132, No. 7, 01.02.2015.

Research output: Contribution to journalArticle

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AU - Rasoul, Firas

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