ENTHALPY RELAXATION STUDIES IN ISOTACTIC POLYSTYRENE - EFFECTS OF CRYSTALLINITY

Citation
C. Tsitsilianis et Ep. Bokaris, ENTHALPY RELAXATION STUDIES IN ISOTACTIC POLYSTYRENE - EFFECTS OF CRYSTALLINITY, Polymer bulletin, 30(5), 1993, pp. 609-616
Citations number
19
Categorie Soggetti
Polymer Sciences
Journal title
ISSN journal
01700839
Volume
30
Issue
5
Year of publication
1993
Pages
609 - 616
Database
ISI
SICI code
0170-0839(1993)30:5<609:ERSIIP>2.0.ZU;2-H
Abstract
The enthalpy relaxation of the amorphus isotactic polystyrene is stron gly affected from the crystalline phase induced by annealing at temper atures between Tg and Tm. All the parameters describing the relaxation process, DELTADELTAH, Tmax and Tons depend also on the above Tg annea ling conditions as the induced crystallinity alters the quantity and t he quality (i.e.Tg,Tgons,DELTATg) of the remaining amorphous phase.