Molecular motion in polytetrafluoroethylene at cryogenic temperatures
- 1 December 1967
- journal article
- research article
- Published by Taylor & Francis in Journal of Macromolecular Science, Part B
- Vol. 1 (4) , 795-800
- https://doi.org/10.1080/00222346708212363
Abstract
Speculation is offered on the nature of the molecular motion in crystals of polytetrafluoroethylene at temperatures well below the 19°C transition. It is proposed that a specific type of defect in the chain, a helix reversal point, creates a mechanism whereby large dynamic angular displacements of chain segments about their long axes can occur without significantly affecting the X-ray diffraction data.Keywords
This publication has 3 references indexed in Scilit:
- Partial disordering and crystal transitions in polytetrafluoroethylene*Zeitschrift für Kristallographie, 1962
- Point dislocations in crystals of high polymer moleculesJournal of Polymer Science, 1962
- NMR Absorption in Teflon FibersJournal of Applied Physics, 1960