Method for preparing polyamide-imides from (O, imide and polyami

Details Method for preparing polyamide-imides from (O, imide and polyami Method for preparing polyamide-imides from (O, imide and polyami

1991-08-30

1993-11-30

Anderson, Harold D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528 15, 528 25, 528 27, 528 28, 528 33, 528170, 528220, 528225, 528229, 528319, 528321, C08G 7314

Patent

active

052666786

ABSTRACT:
A method for preparing a polymer including the step of reacting carbon monoxide and a reactant pair having respective general formulas ##STR1## and or a reactant having the general formula ##STR2## in the presence of catalyst and free iodo or bromo ions. X is a nonortho halide selected from --Br and --I. n is an integer from 0 to 4. R.sup.1 is selected from the group consisting of alkyl, arylalkyl, aryl, heteroaryl, and cycloalkyl. R.sup.2 is selected from the group consisting of ##STR3## and Each R.sup.5 is independently selected from the group consisting of alkyl and aryl, m is an integer from 1-12, and j is an integer between 0 and 300. R.sup.3 is selected from the group consisting of substituted aryl, unsubstituted aryl, substituted heteroaryl, and unsubstituted heteroaryl.

REFERENCES:
patent: 4933419 (1990-06-01), Perry et al.
patent: 4933466 (1990-06-01), Perry et al.
patent: 4933467 (1990-06-01), Perry et al.
patent: 4933468 (1990-06-01), Perry et al.
Macromolecules "Novel Synthesis of Aromatic Polyamides by Palladium-Catalyzed Polycondensation Aromatic Dibromides, Aromatic Diamines and Carbon Monoxide" 1988, vol. 21, 1908-1911.
Chemical Communications, J. of the Chemical Soc., W. J. Scott, 1987 1755.
Chemical Communications, J. of the Chemical Soc., Mutin et al, 1988, 896.

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