IR STUDY OF CHEMICAL DEGRADATION OF CAST- MOLDED POLYURETHANES

Authors
ROMANOV DA YAGUND EM BAKIROVA IN MAKLAKOV LI ZENITOVA LA
Citation
Da. Romanov et al., IR STUDY OF CHEMICAL DEGRADATION OF CAST- MOLDED POLYURETHANES, Vysokomolekularnye soedinenia. Seria A, 39(8), 1997, pp. 1408-1411
Citations number
8
Categorie Soggetti
Polymer Sciences
Journal title
Vysokomolekularnye soedinenia. Seria A → ACNP
ISSN journal
05075475
Volume
39
Issue
8
Year of publication
1997
Pages
1408 - 1411
Database
ISI
SICI code
0507-5475(1997)39:8<1408:ISOCDO>2.0.ZU;2-K
Abstract
Products of the chemical degradation of cast-molded polyurethanes base d on aromatic diisocyanate and various oligoesters were studied by IR spectroscopy. The degradation proceeds according to the mechanism of t ransesterification of the urethane and ester groups. The possibility o f obtaining secondary polyurethanes with good mechanical properties by using the degradation products is demonstrated.