| 摘要 |
THE PROCESS FOR PREPARING HIGHLY REACTIVE POLYISOBUTENES HAVING A TERMINAL VINYLIDENE GROUP CONTENT OF MORE THAN 80 MOLAND AN AVERAGE MOLECULAR WEIGHT OF FROM 500 TO 5000 DALTON BY CATIONIC POLYMERIZATION OF ISOBUTENE IN THE LIQUID PHASE IN THE PRESENCE OF A COMPLEX COMPRISING BORON TRIFLUORIDE AT FROM +40°C TO -60°C COMPRISES POLYMERIZING IN THE PRESENCE OF A COMPLEX COMPRISING BORON TRIFLUORIDE AND @A)A PRIMARY ALCOHOL HAVING 1-20 CARBON ATOMS OR A SECONDARY ALCOHOL HAVING 3-20 CARBON ATOMS, OR MIXTURE OF THESE ALCOHOLS, AND@B) AN ETHER CONTAINING NO TERTIARY ALKYL GROUPS AND HAVING THE FORMULA 1
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