VERFAHREN ZUR EINFÜHRUNG VON CARBONYLGRUPPEN IN POLYMERE MIT KOHLENSTOFF-KOHLENSTOFF- DOPPELBINDUNGEN

The invention discloses a method for selectively introducing carbonyl groups into polymers by oxygenation of double C=C bonds of polymers with the aid of nitrous oxide (N 2 O) at a temperature comprised between 50 and 350°C and a pressure of N 2 O of from 0.01 to 100 atmospheres. The introduction of...

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Bibliographische Detailangaben
Hauptverfasser:	STAROKON, EVGENY VLADIMIROVICH, ECHEVSKAYA, LUDMILA GENNADYEVNA, SEMIKOLENOV, SERGEY VLADIMIROVICH, ZAKHAROV, VLADIMIR ALEXANDROVICH, DUBKOV, CONSTANTIN ALEXANDROVICH, PANOV, GENNADY IVANOVICH, PARMON, VALENTIN NIKOLAEVICH
Format:	Patent
Sprache:	ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
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Beschreibung
Zusammenfassung:	The invention discloses a method for selectively introducing carbonyl groups into polymers by oxygenation of double C=C bonds of polymers with the aid of nitrous oxide (N 2 O) at a temperature comprised between 50 and 350°C and a pressure of N 2 O of from 0.01 to 100 atmospheres. The introduction of an insignificant amount of C=O groups allows one to modify the physico-chemical properties of a polymer, with its molecular weight and molecular-weight distribution preserved. Deeper oxygenation results in controlled cleavage of polymer macromolecules and makes it possible to produce oxygen-containing oligomers having a desired molecular weight.