Naphthyl and ether chain-containing carboxyl derivatives

Details Naphthyl and ether chain-containing carboxyl derivatives Naphthyl and ether chain-containing carboxyl derivatives

1996-08-14

1998-01-27

Richter, Johann

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

562446, 562840, 562853, C07C 69773, C07C 6322, C07C 5160, C07C 6338

Patent

active

057124094

ABSTRACT:
New aromatic dicarboxylic acids, 1,4- or 2,6-Bis(p-carboxyphenoxy)naphthyl is prepared by the reaction of p-fluorobenzonitrile with 1,4-naphthalenediol, followed by hydrolysis. Wholly aromatic polyamides having superior solubility in a variety of organic solvents and have good thermal stability can be obtained by reacting the new aromatic dicarboxylic acids with aromatic diamines. Transparent, tough and flexible films of these polyamides can be cast from the solutions thereof and these polyamides are easily processable high-performance polymer materials.

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