Temperature behaviour of the crystalline lattice of oriented polytetrafluoroethylene during annealing

The temperature changes of the crystalline lattice parameters a and c, and the linear coefficients of crystalline lattice expansion were determined for PTFE over the range 298–598 K from changes in angular position of equatorial (100) and meridional (0015) X-ray reflections. By heating to 373 K the...

Full description

Saved in:
Bibliographic Details
Published in:Polymer science USSR 1986, Vol.28 (6), p.1454-1460
Main Authors: Shirina, N.G, Zubov, Yu.A, Kostromina, S.V
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The temperature changes of the crystalline lattice parameters a and c, and the linear coefficients of crystalline lattice expansion were determined for PTFE over the range 298–598 K from changes in angular position of equatorial (100) and meridional (0015) X-ray reflections. By heating to 373 K the lattice expands in the direction of molecular chains, but it contracts at higher temperatures. The results obtained are discussed from the point of view of PTFE lattice dynamics.
ISSN:0032-3950
1878-268X
DOI:10.1016/0032-3950(86)90139-5