PROCESS FOR SHORTSTOPPING FREE RADICAL POLYMERIZATION

It has been found that substituted hydroquinones function as a shortstop agent in the polymerization of vinyl monomers. The substituted hydroquinones have the formula: wherein R' = and R'' = wherein p is 1 or 2 and q is 0 or 1; provided that p+q = 1 or 2. The groups R1, R2, R3, R4, Z...

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Bibliographic Details
Main Authors SHARABY, ZAEV, VYVODA, JOSEF C
Format Patent
LanguageEnglish
Korean
Published 13.07.1994
Edition5
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMISTRY
COMPOSITIONS BASED THEREON
GENERAL METHODS OF ORGANIC CHEMISTRY
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC CHEMISTRY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Summary:It has been found that substituted hydroquinones function as a shortstop agent in the polymerization of vinyl monomers. The substituted hydroquinones have the formula: wherein R' = and R'' = wherein p is 1 or 2 and q is 0 or 1; provided that p+q = 1 or 2. The groups R1, R2, R3, R4, Z and W are defined hereafter. The compounds 2,5-di-t-amylhydroquinone and 2,5-di-t-butylhydroquinone are particularly desirable as shortstop agents in the polymerization of vinyl chloride. These hydroquinones also function as stabilizers for the resin and finished articles made therefrom.
Bibliography:Application Number: KR19860003295