FIELD: rubber industry. SUBSTANCE: deactivation of live polymer is performed using very well soluble in water compounds with general formulas R-OH and R'-COOH, wherein R is C2-C20-alkyl optionally substituted by one or more polar functional groups (hydroxyl or carboxyl) and R' is C1-C20-alkyl or C6-C20-aryl. Hydrogenation of deactivated polymer is carried out in presence of titanocene catalysts, most preferable of which are compounds with formulas Cp2Ti(PhOCH3)2 and Cp2Ti(CH2PPh2)2.. EFFECT: facilitated and enhanced deactivation of live polymer before hydrogenation stage. 7 cl
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Authors
Dates
2000-05-27—Published
1997-06-20—Filed