GLASS-TRANSITION TEMPERATURES OF POLYURETHANE-UREA ELASTOMERS BASED ON N,N'-ETHYLENETHIOUREA AND N,N'-ETHYLENEUREA AS CHAIN EXTENDERS

Citation
M. Debowski et al., GLASS-TRANSITION TEMPERATURES OF POLYURETHANE-UREA ELASTOMERS BASED ON N,N'-ETHYLENETHIOUREA AND N,N'-ETHYLENEUREA AS CHAIN EXTENDERS, Journal of thermal analysis, 43(1), 1995, pp. 219-225
Citations number
5
Categorie Soggetti
Chemistry Analytical
Journal title
ISSN journal
03684466
Volume
43
Issue
1
Year of publication
1995
Pages
219 - 225
Database
ISI
SICI code
0368-4466(1995)43:1<219:GTOPEB>2.0.ZU;2-P
Abstract
Glass transition temperatures of polyurethane-urea elastomers (PU) bas ed on two urea derivatives, have been investigated with differential s canning calorimetry (DSC) and dynamic mechanical thermal analysis (DMT A) methods. The DMTA measurements have been proved as more useful to d etermine an optimal annealing time and to controlling polyurethane-ure a synthesis then the DSC analysis.