Spectroscopic study of the penetration depth of grafted polystyrene onto poly (tetrafluoroethylene-co-perfluoropropylvinylether) substrates. 1. Effect of grafting conditions

Cardona, F., George, G. A., Hill, D. J. T. and Perera, S. (2002) Spectroscopic study of the penetration depth of grafted polystyrene onto poly (tetrafluoroethylene-co-perfluoropropylvinylether) substrates. 1. Effect of grafting conditions. Journal of Polymer Science. Part A, Polymer Chemistry, 40 19: 3191-3199. doi:10.1002/pola.10409


Author Cardona, F.
George, G. A.
Hill, D. J. T.
Perera, S.
Title Spectroscopic study of the penetration depth of grafted polystyrene onto poly (tetrafluoroethylene-co-perfluoropropylvinylether) substrates. 1. Effect of grafting conditions
Journal name Journal of Polymer Science. Part A, Polymer Chemistry
ISSN 1099-0518
0887-624X
0360-6376
Publication date 2002-10-01
Sub-type Article (original research)
DOI 10.1002/pola.10409
Volume 40
Issue 19
Start page 3191
End page 3199
Total pages 9
Place of publication Easton, PA. U.S.A.
Publisher Wiley
Collection year 2002
Language eng
Subject C1
250502 Physical Chemistry of Macromolecules
780103 Chemical sciences
Abstract This study concerns the radiation grafting of styrene onto poly(tetrafluoroethylene-co-perfluoropropylvinylether) (PFA) substrates and the penetration depth of the graft. Grafting was obtained by the simultaneous irradiation method, and the spectroscopic analysis was made with the micro-Raman technique. Effects of grafting conditions such as the type of solvent, dose rate, and irradiation dose on the grafting yield were investigated. Of the different solvents used, the most efficient in terms of increasing grafting yield were dichloromethane, benzene, and methanol, respectively. A mixture of methanol and dichloromethane used as a solvent for styrene achieved a higher degree of grafting and concentration of grafted polystyrene onto the surface of PFA substrates than solutions of the monomer in the separate solvents. The degree of grafting increased with increasing radiation dose up to 500 kGy, stabilizing above this dose. However, the grafting yield decreased with an increase in the dose rate. The increase in the overall grafting yield was accompanied by a proportional increase in the penetration depth of the grafts into the substrate. (C) 2002 Wiley Periodicals, Inc.
Keyword Polymer Science
Surface
Raman Spectroscopy
Poly(tetrafluoroethylene-co-perfluoropropylvinylether) (pfa)
Polystyrene
Radiation
Graft Copolymers
Depth Profile
Cation-exchange Membranes
Pfa Copolymer Films
Teflon-fep Films
Point Illumination
Styrene
Fluoropolymers
Raman
Poly(ethylene-alt-tetrafluoroethylene)
Polypropylene
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Physical Sciences Publications
 
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Created: Tue, 14 Aug 2007, 17:34:05 EST