METHOD FOR PRODUCING LOW-MOLECULAR ISOBUTYLENE POLYMER

FIELD: organic chemistry; polymerization. SUBSTANCE: isobutylene is produced by polymerization carried out in hydrocarbon solvent, such as toluene, xylene or isopentane, at temperature 0-60 C, by successively introducing into solvent isobutylene and conjugated diene, such as butadiene or isoprene. M...

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Bibliographische Detailangaben
Hauptverfasser:	BYRIKHIN V.S, GOL'BERG I.P, KHLUSTIKOV V.I, RJAKHOVSKIJ V.S, AKSENOV V.I, ZOLOTAREV V.L, GORJACHEV JU.V, GOLOVINA N.A, GRISHCHENKO A.I, GRUNIN G.N, NESMELOV A.I
Format:	Patent
Sprache:	eng
Schlagworte:	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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Beschreibung
Zusammenfassung:	FIELD: organic chemistry; polymerization. SUBSTANCE: isobutylene is produced by polymerization carried out in hydrocarbon solvent, such as toluene, xylene or isopentane, at temperature 0-60 C, by successively introducing into solvent isobutylene and conjugated diene, such as butadiene or isoprene. Monomers are taken in amounts 10-60 wt.-%, diene content being 0.5-20 wt. -%. Polymerization is carried out in presence of titanium tetrachloride taken in amount 0.05-1.0 mole per 100 kg of monomers, as well as in presence of triisobutyl aluminium taken in titanium-to-aluminium molar ratio of 100:1 to 1:2. EFFECT: higher polymer quality. 1 tbl