PROCEDURE FOR PRODUCING CATIONIC POLYELECTROLYTES

The invention relates to a method for producing water-soluble, cationic polyelectrolytes. Polymerisation of water-soluble monomers is initiated by a combination of UV light, a photoinitiator and a redox system at low temperatures. The inventive method is characterised in that the redox system can on...

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Bibliographische Detailangaben
1. Verfasser:	BREHM, HELMUT
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CABLES CHEMISTRY COMPOSITIONS BASED THEREON CONDUCTORS ELECTRICITY IMPREGNATING OR COATING OF PAPER INSULATORS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	The invention relates to a method for producing water-soluble, cationic polyelectrolytes. Polymerisation of water-soluble monomers is initiated by a combination of UV light, a photoinitiator and a redox system at low temperatures. The inventive method is characterised in that the redox system can only initiate polymerisation at temperatures of 20 °C or above. The polymers have a high molecular weight and a low residual monomer content. Postupak se odnosi na proizvodnju u vodi rastvorljivih, katjonskih polielektrolita, kod kojih se polimerizacija u vodi rastvorljivih monomera sprovodi na niskim temperaturama pomoću kombinacije ultra-ljubičastog svetla, fotoinicijatora i jednog redoks-sistema, koji je karakterističan po tome što redoks-sistem može da pobudi polimerizaciju tek na temperaturama višim ili jednakim 20В°C, Polimerizati imaju veliku molekularnu težinu i nizak sadržaj ostatka monomera.[The invention relates to a method for producing water-soluble, cationic polyelectrolytes. Polymerisation of water-soluble monomers is initiated by a combination of UV light, a photoinitiator and a redox system at low temperatures. The inventive method is characterised in that the redox system can only initiate polymerisation at temperatures of 20 В°C or above. The polymers have a high molecular weight and a low residual monomer content.