Autor:	Kanji Kajiwara, Zdeněk Tuzar, Michael Kowalski, Dittmar Nerger, Karel Dušek, Libor Matějka, Walther Burchard
Rok vydání:	1984
Předmět:	chemistry.chemical_classification Solvent chemistry.chemical_compound Materials science chemistry Percolation theory Dynamic light scattering Polymer chemistry Static light scattering Triol Polymer Percolation process
Zdroj:	Die Makromolekulare Chemie. 185:2543-2552
ISSN:	0025-116X
DOI:	10.1002/macp.1984.021851207
Popis:	Critically branched polyurethanes of varying molecular weight were prepared from poly(oxypropylene)triol and methylenedi-p-phenylene diisocyanate with and without solvent. The static/dynamic light scattering from DMF solutions of these samples was measured. The results were discussed in terms of the classical (Flory-Stockmayer, FS) and percolation theory of gelation; the bulk-polymerized sample obeyed the FS process, whereas the solution-polymerized samples were better described by the percolation process.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::942e08ae73986b3436e0819b44d9485b https://doi.org/10.1002/macp.1984.021851207 Zobrazit plný text záznamu Plný text