Patent ID: 6303722
Filing Date: 2001-10-16
Classification: C08F

Abstract:
A method for producing a (co)polymer, which comprises:reacting an anionically polymerizable monomer of the formula: ##STR11##with an initiator of the formula(PR.sup.6 R.sup.7 R.sup.8 R.sup.9).sup.+ (R.sup.10 R.sup.11 N)-(PR.sup.6 R.sup.7 R.sup.8 R.sup.9).sup.+ (R.sup.12 O)-or(PR.sup.6 R.sup.7 R.sup.8 R.sup.9).sup.+ (R.sup.13 S)-at a temperature of from -78.degree. C. to 40.degree. C., in a solvent in which the initiator at least partially dissolves and which does not quench the reaction, for a length of time sufficient to polymerize the monomer(s) and form a reaction mixture, wherein:R.sup.1 is selected from the group consisting of H, CN, straight-chain or branched alkyl of from 1 to 6 carbon atoms which may be substituted with from 1 to (2n+1) halogen atoms, straight-chain or branched alkenyl of from 2 to 6 carbon atoms which may be substituted with from 1 to (2n-1) halogen atoms, straight-chain or branched alkynyl of from 2 to 6 carbon atoms which may be substituted with from 1 to (2n-3) halogen atoms, and aryl, where n is the number of carbon atoms in the alkyl, alkenyl or alkynyl group; andR.sup.2 is independently selected from the group consisting of CN, C(.dbd.X)R.sup.3, C(.dbd.X)NR.sup.4 R.sup.5 and heterocyclic rings capable of stabilizing an .alpha.-anion, where X is NR, 0 or S, R being C.sub.1 -C.sub.20 alkyl; R.sup.3 is alkyl of from 1 to 20 carbon atoms, alkoxy of from 1 to 20 carbon atoms or alkylthio of from 1 to 20 carbon atoms; and R.sup.4 and R.sup.5 are independently alkyl of from 1 to 20 carbon atoms or are joined together to form an alkylene group of from 2 to 5 carbon atoms, thus forming a 3- to 6-membered ring;R.sup.6, R.sup.7, R.sup.8 and R.sup.9 are independently alkyl of from 1 to 20 carbon atoms, aryl or aralkyl, and any pair of R.sup.6, R.sup.7, R.sup.8 and R.sup.9 may be joined to form a ring, including the possibility that both pairs of R.sup.6 -R.sup.9 may be joined to form a ring,R.sup.10 and R.sup.11 are independently alkyl of from 1 to 20 carbon atoms, cycloalkyl of from 3 to 10 carbon atoms, an aryl group, a trialkylsilyl group or an electronegative group, or R.sup.10 and R.sup.11 may be joined together to form a heterocycle, andR.sup.12 is independently H, straight-chain or branched alkyl of from 1 to 20 carbon atoms or cycloalkyl of from 3 to 10 carbon atoms, straight-chain or branched alkenyl of from 2 to 20 carbon atoms, straight-chain or branched alkynyl of from 2 to 20 carbon atoms, aryl, aralkyl or a (co)polymer radical;R.sup.13 is independently R.sup.12, straight-chain or branched alkenyl of from 2 to 20 carbon atoms, or straight-chain or branched alkynyl of from 2 to 20 carbon atoms;quenching the reaction mixture with an acyl halide, an acid anhydride or a substance containing an active hydrogen atom to form a (co)polymer; andisolating the formed (co)polymer.