Method for making heterocyclic block copolymer

Details Method for making heterocyclic block copolymer Method for making heterocyclic block copolymer

1984-05-16

1985-10-01

Anderson, Harold D.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528321, 528331, 528337, C08G 7308

Patent

active

045447136

ABSTRACT:
Thermally stable aromatic heterocyclic block copolymers are prepared by reacting a diamino monomer and terephthalic acid to form a carboxy-terminated rigid rod segment and then polymerizing a carboxy-monoamine monomer therewith to form flexible segments grafted onto the rigid rod segments.

REFERENCES:
patent: 4108835 (1978-08-01), Arnold et al.
patent: 4207407 (1980-06-01), Helminiak et al.
patent: 4377546 (1983-03-01), Helminiak et al.

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