METHOD FOR POLYMERIZATION OF N-VINYLCARBAZOLE

METHOD FOR POLYMERIZATION OF N-VINYLCARBAZOLE

N-vinylcarbazole is bead polymerized in a polymerization reaction mixture made by mixing (1) molten monomer of N-vinylcarbazole suspended in water with a dispersant and (2) a solution of a free radical catalyst in sufficient water insoluble organic solvent to maintain the catalyst and a substantial...

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Hauptverfasser: TETSUO TANAKA, AKIHIRO TOGUCHI, NARIO YAMAGUCHI, MASAO MASUMURA
Format: Patent
Sprache:eng
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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
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creator TETSUO TANAKA
AKIHIRO TOGUCHI
NARIO YAMAGUCHI
MASAO MASUMURA
description N-vinylcarbazole is bead polymerized in a polymerization reaction mixture made by mixing (1) molten monomer of N-vinylcarbazole suspended in water with a dispersant and (2) a solution of a free radical catalyst in sufficient water insoluble organic solvent to maintain the catalyst and a substantial amount of monomer in suspended droplet form, said solvent having a specific gravity of 1.0 or more; and then agitating vigorously the mixture of (1) and (2) at a temperature above the melting point of N-vinylcarbazole in an inert atmosphere.
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subjects 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
title METHOD FOR POLYMERIZATION OF N-VINYLCARBAZOLE
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