STRUCTURAL TRANSITION OF POLYETHYLENE OXIDE NETWORKS STUDIED BY POSITRON-ANNIHILATION

Authors
WANG B PENG ZL DAI YQ LI SQ WANG SJ LIU H XIE HQ
Citation
B. Wang et al., STRUCTURAL TRANSITION OF POLYETHYLENE OXIDE NETWORKS STUDIED BY POSITRON-ANNIHILATION, Journal de physique. IV, 3(C4), 1993, pp. 257-260
Citations number
10
Categorie Soggetti
Physics
Journal title
Journal de physique. IV → ACNP
ISSN journal
11554339
Volume
3
Issue
C4
Year of publication
1993
Pages
257 - 260
Database
ISI
SICI code
1155-4339(1993)3:C4<257:STOPON>2.0.ZU;2-O
Abstract
Positron lifetime spectra have been measured for network polyethylene oxide (PEO) in the temperature range of 120 - 345K. The glass transiti on and secondary structural transition have been observed and the tran sition temperatures were determined. The changes of free-volume in amo rphous regions and the defect properties in crystalline are discussed.