Polyadditions of diisocyanatodiketenes, 3-(&-isocyanatoalkyl)-4-(&-isocyanatoalkyliden)-2-oxetanones, and polymeranalogous reactions with the resulting polymers - Mormann - 1988 - Macromolecular Chemistry and Physics - Wiley Online Library
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Reactions of diisocyanatodiketenes, 3-(&-isocyanatoalkyl)-4-(&-isocyanatoalkylidene)-2-oxetanones (3a&c), with oligomeric diols (4 or 5) as well as 1,4-butanediol afforded linear polyurethanes containing reactive diketene moieties. From these poly(diketene-urethane)s polymeranalogues products were prepared by reaction with ethanol, ammonia, water or acetic acid. The resulting polyurethanes containing &-ketoester, &-ketoamide or keton moieties were characterized by IR spectroscopy, viscosimetry, differential scanning calorimetry and size exclusion chromatography. The properties of the products based on diols 4 or 5 are mainly determined by the oligomeric diols, whereas the (modified) diisocyanate part has a great influence e.g. on the thermal behaviour of the polyurethanes.Polymer Analogous Reactions using Lonic Liquids as Reaction Medium and Catalyst - ??????? ???? ???? ??? - ??????? : ???? ?? - DBpia
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Fax: +33 (0)3 83 50 46 66Faire une nouvelle rechercheMake a new searchTitre du document / Document titlePolymeranalogous reactions of polyolefins with phenols an aminophenolsAuteur(s) / Author(s) ;
Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)Bashkortostan State univ., Bashkortostan 450074, RUSSIE, FEDERATION DERésumé / AbstractPolymer analogous reactions of poly(α-olefin)s with phenols and aminophenols in the presence of catalytic complexes of the type Mt[AlCl4], where Mt=Li, Na, K, were investigated. Optimal conditions for carrying out the process were found. A process was developed for obtaining the final products in an almost quantitative yield. It was shown that the synthesized compounds served as polyfunctional additives for a number of chlorinated polymersRevue / Journal Title
Source / Source1994, vol. 36, no8, pp.
(7 ref.)Langue / LanguageAnglaisEditeur / PublisherInterperiodica, Birmingham, AL, ETATS-UNIS
(Revue)Mots-clés anglais / English Keywords ;
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Localisation / LocationINIST-CNRS, Cote INIST : 0
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