STRUCTURE-PROPERTY RELATIONS IN MULTIBLOCK COPOLY(ETHER-UREA)S STUDIED BY SAXS, DSC AND THERMOMECHANICAL TECHNIQUES

Authors
MARCOSFERNANDEZ A RYAN AJ GONZALEZ L
Citation
A. Marcosfernandez et al., STRUCTURE-PROPERTY RELATIONS IN MULTIBLOCK COPOLY(ETHER-UREA)S STUDIED BY SAXS, DSC AND THERMOMECHANICAL TECHNIQUES, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 97(1-4), 1995, pp. 279-281
Citations number
6
Categorie Soggetti
Physics, Nuclear","Nuclear Sciences & Tecnology","Instument & Instrumentation
Journal title
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms → ACNP
ISSN journal
0168583X
Volume
97
Issue
1-4
Year of publication
1995
Pages
279 - 281
Database
ISI
SICI code
0168-583X(1995)97:1-4<279:SRIMCS>2.0.ZU;2-2
Abstract
The morphology of four copoly(ether-urea)s was studied by using synchr otron radiation in order to relate the changes of morphology with temp erature to the transitions in mechanical and thermal properties. Very different behaviour was found for copolyureas synthesised from aromati c isocyanates and from aliphatic isocyanates. Whilst the former retain the phase separated structure above the hard segment glass transition , the latter did not show evidence of phase separation above the hard segment transition and it did not reappear on cooling.