METHOD FOR PREPARING (CO)POLYMERS BY METAL-FREE ANIONIC POLYMERIZATION IN THE PRESENCE OF A PHOSPHONIUM CATION CONTAINING AT LEAST ONE ANNELLATED AROMATIC RING

The present invention concerns a novel method for preparing polymers (preferably (meth)acrylate polymers and copolymers) having a narrow molecular weight distribution by metal-free anionic polymerization in the presence of a phosphonium cation containing at least one annellated aromatic ring as subs...

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Bibliographische Detailangaben
Hauptverfasser:	WARZELHAN, VOLKER, HOGEN-ESCH, THIEO, E, GAUSEPOHL, HERMANN, DIMOV, DIMO, K, JUENGLING, STEPHAN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention concerns a novel method for preparing polymers (preferably (meth)acrylate polymers and copolymers) having a narrow molecular weight distribution by metal-free anionic polymerization in the presence of a phosphonium cation containing at least one annellated aromatic ring as substituent on the phosphorous atom. L'invention concerne un nouveau procédé servant à préparer des polymères, de préférence, des polymères et des copolymères de méthacrylate présentant une répartition limitée de poids moléculaire, ce qui consiste à effectuer une polymérisation anionique sans métal en présence d'un cation de phosphonium contenant au moins un noyau aromatique annelé en tant que substituant sur l'atome de phosphore.