Reokinetika lineárních polybutadienových polyurethanů potvrzuje univerzální průběh síťování

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Polymer Materials

ISSN

0970-0838

e-ISSN

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Svazek periodika

24

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

119-128

Kód UT WoS článku

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EID výsledku v databázi Scopus

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