Rheokinetics of Linear Polybutadiene-Based Polyurethanes Affirms Universal Course of Curing

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F07%3APU69924" target="_blank" >RIV/00216305:26310/07:PU69924 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Rheokinetics of Linear Polybutadiene-Based Polyurethanes Affirms Universal Course of Curing
Original language description
Curing of sixteen dihydroxypolybutadiene-based polyurethane compositions was studied by oscillatory rheometry in a broad time interval. The compositions contained chain extender only, consequently, preferably physical crosslinks were formed. The individual samples differed also in the miscibility and reactivity of their components. Studied linear polyurethanes showed the same general curing behaviour as chemically crosslinked systems investigated in previous work. Regardless of type of the crosslinks, miscibility and reactivity of components development of structures responsible for the viscous response precede development of the elastically effective structures which is faster at the beginning. Formation and evolution of the physical and chemical networks, in systems of different miscibility or reactivity are in general identical at least from the small deformation standpoint. Mechanical properties of final product are, however, affected by both the reactivity and miscibility of react
Czech name
Reokinetika lineárních polybutadienových polyurethanů potvrzuje univerzální průběh síťování
Czech description
Síťování polybutadienových polyurethanů o různém složení (16 vzroků) studované oscilační reometrií v čase.

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CD - Macromolecular chemistry
OECD FORD branch
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Publication year
2007
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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