Miscibility and Crosslinking of Polybutadiene-Based Polyurethanes

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Title:Miscibility and Crosslinking of Polybutadiene-Based Polyurethanes
Creators:
Pekař, Miloslav
Kopecký, Pavel
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 65, 11, pp. 1820-1832
Uncontrolled Keywords:Macromolecules, Polyurethanes, Rheokinetics, Polymers, Crosslinking, Miscibility, Polybutadiene

Abstract

Rheokinetics of polybutadiene-based polyurethanes was studied. Sixteen mixtures differing in the miscibility of reactive components and hard segments contents were prepared. Regardless of the miscibility of the components, the rheokinetics behaviour is qualitatively very similar. The viscous response part is formed and finished much earlier than the elastic part. The quantitative dissimilarities, caused by cooperative effect of miscibility and differences in reactivity, are described. Using a well miscible initial mixture need not give the best results as a reactive crosslinker can easily react with isocyanate and separate from the rest of the reaction mixture thus impairing the final phase structure. <p>

Title:Miscibility and Crosslinking of Polybutadiene-Based Polyurethanes
Creators:
Pekař, Miloslav
Kopecký, Pavel
Uncontrolled Keywords:Macromolecules, Polyurethanes, Rheokinetics, Polymers, Crosslinking, Miscibility, Polybutadiene
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:65
Number:11
Page Range:pp. 1820-1832
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc20001820UNSPECIFIED
ID Code:1761
Item Type:Article
Deposited On:06 Feb 2009 17:12
Last Modified:06 Feb 2009 16:12

Citation

Pekař, Miloslav; Kopecký, Pavel (2000) Miscibility and Crosslinking of Polybutadiene-Based Polyurethanes. Collection of Czechoslovak Chemical Communications, 65 (11). pp. 1820-1832. ISSN 0010-0765

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