Formation, structure and physical properties of ordered polyurethane networks

0188493 - UMCH-V 20010271 RIV DE eng J - Článek v odborném periodiku
Ilavský, Michal - Valentová, H. - Sedláková, Zdeňka - Nedbal, J.
Formation, structure and physical properties of ordered polyurethane networks.
Macromolecular Symposia. Roč. 171, - (2001), s. 105-114. ISSN 1022-1360.
[Polymer Networks Group Meeting: Polymer Networks - Formation-Structure-Properties /15./. Rzeszów, 17.07.2000-21.07.2000]
Grant CEP: GA AV ČR IAA4112901; GA AV ČR KSK2050602
Výzkumný záměr: CEZ:AV0Z4050913
Klíčová slova: polyurethane networks * sol-gel transition * mesogenic diol
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 0.634, rok: 2001

Thermal and dynamic mechanical behaviour of ordered stoichiometric as well as off-stoichiometric polyurethane networks based on mesogenic diol - 6,6-[ethylenebis(1,4-phenyleneoxy)]dihexanol, 2(4)-methyl-1,3-phenylene diisocyanate and poly(oxypropylene) triol is reviewed. The effects of various initial molar ratios of the reactive groups([OH]_T/[NCO]_DI/[OH]_D) and of the ordered or isotropic state of the diol on the critical gel structure at the sol-gel transition and a power-law mechanical behavior is discussed.
Trvalý link: http://hdl.handle.net/11104/0084428