Patent ID: 6184338
Filing Date: 2001-02-06
Classification: C08F

Abstract:
A hydrocarbon solution comprising at least one tertiary amino anionic polymerization initiator of the formula: ##STR14##wherein:M is an alkali metal;R.sup.1 is chiral or achiral and is selected from the group consisting of saturated and unsaturated, linear and branched, optionally silyl-, amino-, or oxy-substituted, C3-C16 alkyl; and saturated and unsaturated, linear and branched, C3-C16 alkyl containing saturated or unsaturated lower alkyl, aryl, or substituted aryl;R.sup.2 is chiral or achiral and is selected from the group consisting of saturated and unsaturated, linear and branched, optionally silyl-, amino-, or oxy-substituted, C1-C16 alkyl; saturated and unsaturated, optionally silyl-, amino-, or oxy-substituted, C3-C16 cycloalkyl; saturated and unsaturated, linear and branched, substituted C1-C16 alkyl containing saturated or unsaturated lower alkyl, aryl, or substituted aryl; and saturated and unsaturated substituted C3-C16 cycloalkyl containing saturated or unsaturated lower alkyl, aryl, or substituted aryl; andR.sup.3 is a hydrocarbon connecting group or tether selected from the group consisting of saturated and unsaturated, linear and branched C1-C25 alkyl; saturated and unsaturated C3-C25 cycloalkyl; saturated and unsaturated substituted C1-C25 alkyl containing saturated or unsaturated lower alkyl, aryl, or substituted aryl; and saturated and unsaturated substituted C3-C25 cycloalkyl containing saturated or unsaturated lower alkyl, aryl, or substituted aryl, with the proviso that the nitrogen atom and the alkali metal are separated by three or more carbon atoms.