Poly(dinaphthyl arylene ether) and preparation thereof

Details Poly(dinaphthyl arylene ether) and preparation thereof Poly(dinaphthyl arylene ether) and preparation thereof

1987-03-13

1989-02-21

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528125, 528170, 528171, 528174, 528210, 528212, 528214, 528215, 528217, C08G 6500

Patent

active

048066176

ABSTRACT:
When two 4-naphthoxyphenyl moieties are connected through a polar linking group, Y, it does not interfere with an oxidation process which results in dehydrogenative polymerization to yield polyarylene polyether (PAPE) polymers having a weight average mol wt greater than 10,000. Homo- and copolymers having a repeating unit in which a 4,4'-di(1-naphthoxyphenyl) moiety is connected through its phenyl rings to a bivalent polar residue are described. A specific monomer is selected from the group consisting of 4,4'-di(1-naphthoxy)diphenyl sulfone (DNDPS, Y=SO.sub.2) and, 4,4'-di(1-naphthoxy)benzophenone (DNBP, Y=CO). Because the process provides thermoplastic PAPE polymers having a Tg in the range from about 250.degree. C. to about 350.degree. C. with excellent physical properties, the polymers are suitable for use in the fabrication of composites for aerospace vehicles subjected to elevated temperatures.

REFERENCES:
patent: 3810870 (1974-05-01), Feasey et al.

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