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https://open.uns.ac.rs/handle/123456789/10557
Nаziv: | Rubber elasticity study of polyurethane networks prepared by cyclotrimerisation crosslinking reaction of isocyanate groups | Аutоri: | Budinski-Simendić, Jaroslava Ilavsky M. Šomvarsky J. Špirkova M. Korugic-Karasz L. Radičević R. Dikić T. Dušek K. |
Dаtum izdаvаnjа: | 1-дец-2007 | Čаsоpis: | Materials Science Forum | Sažetak: | The aim of this contribution was to study the rubber elasticity of dry and swollen networks obtained by cyclotrimerization crosslinking reaction of isocyanate groups located at a linear telechelic network precursor. Telechelic diisocyanates were prepared in the undiluted state from 2,4-tolylene diisocyanate, α,ω,dihydroxypoly(oxypropylenes) and different contents of the monool component 2-(2-metoxyetoxy) ethanol. The network synthesis proceeded in a bulk. Detailed network topology was calculated by the theory of branching processes. The equilibrium swelling degree of prepared samples was related to the parameters, which are experimentally accessible for a network arising from an end-linking process using the Flory-Rehner theory. The experimental data for network modulus were compared with those arising from the "affine" model, "phantom' model" and the model of constrained junctions. | URI: | https://open.uns.ac.rs/handle/123456789/10557 | ISBN: | 0878494413 | ISSN: | 02555476 |
Nаlаzi sе u kоlеkciјаmа: | TF Publikacije/Publications |
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