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Process for preparation of modified polyphenylene ether or related polymers and the use thereof in modified high temperature rigid polymer of vinyl substituted aromatics

  • US 5,304,600 A
  • Filed: 09/30/1992
  • Issued: 04/19/1994
  • Est. Priority Date: 04/07/1989
  • Status: Expired due to Term
First Claim
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1. Process for the manufacture of modified high temperature rigid poly(vinyl substituted aromatic) compositions, comprising(A) reacting to substantial completion of a compound of the formula:

  • ##STR7## wherein R1 and R4 each may represent hydrogen, halogen, a phenyl group, alkenyl group, alkadienyl group, an aryloxy group, or wherein R1 and R4 each may represent an alkyl group or an alkoxy group, each of the latter containing 12 or less carbon atoms and each optionally substituted by halogen, cyano, hydroxy, phenyl or amino, whereas alkyl or alkoxy groups attached to the terminal phenol nucleus of the chain may be substituted by an amino, dialkylamino or a di(alkanoyl)amide, wherein the alkyl groups each contain 4 or less carbon atoms, wherein R2 and R3 each may represent hydrogen, halogen, a phenyl group, alkenyl group, alkadienyl group, aryloxy group, or wherein R2 and R3 each may represent a primary or secondary alkyl group or alkoxy group as defined for R1 and R4, optionally substituted by halogen, cyano, hydroxy, phenyl, and wherein R1, R2, R3 and R4 may represent different or the same groups in one repeating unit, and n represents an integer having a value of at least 50, with a para substituted phenylsulphonyl halide of the general formula;

    ##STR8## wherein X1 represents halogen or an alkyl group containing 1-4 carbon atoms, and which may optionally be substituted by halogen, and wherein X2 represents halogen in the presence of a catalyst of the formula ##STR9## wherein R5 and R6 both represent in general non-electron withdrawing groups such as alkyl groups containing from 1 to 4 carbon atoms, optionally substituted by at most one phenyl group and wherein R7 and R8 represent hydrogen, halogen or lower alkyl, while R5, R6, R7 and R8 may represent different or the same groups in one molecule, and an acid neutralizing agent, and in the vinyl substituted aromatic monomer as solvent; and

    (B) polymerizing the vinyl substituted aromatic monomer.

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