Surface modification of poly(tetrafluoroethylene) by plasma pretreatment and adsorption of polyelectrolytes

Authors
Lappan, U Buchhammer, HM Lunkwitz, K
Citation
U. Lappan et al., Surface modification of poly(tetrafluoroethylene) by plasma pretreatment and adsorption of polyelectrolytes, POLYMER, 40(14), 1999, pp. 4087-4091
Citations number
17
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
POLYMER
ISSN journal
00323861 → ACNP
Volume
40
Issue
14
Year of publication
1999
Pages
4087 - 4091
Database
ISI
SICI code
0032-3861(199906)40:14<4087:SMOPBP>2.0.ZU;2-X
Abstract
The adsorption of polyelectrolytes onto plasma-pretreated poly(tetrafluoroe thylene) (PTFE) surfaces is reported as a method for fluoropolymer surface modification. PTFE was treated in oxygen or ammonia plasmas in order to int roduce oxygen-containing and nitrogen-containing groups, respectively, whic h increase the surface free energy and make possible the adsorption of poly electrolytes via electrostatic interactions. We investigated the adsorption of poly(diallyldimethylammonium chloride) and poly(sodium styrenesulfonate ) on the plasma-pretreated PTFE. The modification effects were evaluated by means of contact angle and streaming potential measurements. (C) 1999 Else vier Science Ltd. All rights reserved.