Total-reflection X-ray diffraction study of friction-tranferred poly(tetrafluoroethylene) film

Authors
Tanigaki, N Yoshida, Y Kaito, A Yase, K
Citation
N. Tanigaki et al., Total-reflection X-ray diffraction study of friction-tranferred poly(tetrafluoroethylene) film, J POL SC PP, 39(4), 2001, pp. 432-438
Citations number
27
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
ISSN journal
08876266 → ACNP
Volume
39
Issue
4
Year of publication
2001
Pages
432 - 438
Database
ISI
SICI code
0887-6266(20010215)39:4<432:TXDSOF>2.0.ZU;2-H
Abstract
The orientational structure of the friction-transferred poly(tetrafluoroeth ylene) (PTFE) film, which consists of highly oriented polymer strands, was evaluated with energy-dispersive total-reflection X-ray diffractometry. In the film, each PTFE molecule is oriented along the friction direction, and PTFE crystallites have a preferred orientation with respect to the substrat e surface. The orientational distribution of the chain direction was quanti tatively evaluated. The half-width of the distribution was determined to be about 3 degrees. The dependence of the orientational distribution on tempe rature is discussed. (C) 2001 John Wiley & Sons, Inc.