Cationic precipitation polymerization of vinyl carbazole
Abstract
Abstract A PROCESS IS PROVIDED FOR OBTAINING PARTICULATE LOW MOLECULAR WEIGHT POLY (VINYL CARBAZOLE) COMPRISING CHARGING (1) MONOMERIC VINYL CARBAZOLE, (2) AN INERT ORGANIC SOLVENT FOR SAID VINYL CARBAZOLE, SAID SOLVENT BEING A NONSOLVENT FOR THE RESULTING POLYMER AND (3) A CATALYTICALLY EFFECTIVE AMOUNT OF A CATIONIC POLYMERIZATION CATALYST TO A POLYMERIZATION ZONE; MAINTAINING THE RESULTING MIXTURE IN SAID ZONE AT A TEMPERATURE RANGING FROM ABOUT -50$C. TO ABOUT + 100$C. FOR A PERIOD OF TIME SUFFICIENT TO CAUSE POLYMERIZATION OF SAID MONOMER AND SUBSTANTIALLY SIMULTANEOUS PRECIPITATION OF DISCRETE PARTICLES OF POLY (VINYL CARBAZOLE) FORMING A POLYMER SLURRY, AND THEREAFTER RECOVERING SAID POLYMER FROM SAID SLURRY.
Inventors
- 👤 Eugene V Hort
Bibliographic Details
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