Poly(arylether)/liquid crystalline polyester block copolymers an

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

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525471, 525535, C08G 8100

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active

056188897

ABSTRACT:
Block copolymers represented by the formula ##STR1## are formed by contacting an ester group containing poly(aryl ether ketone) composed of the recurring units ##STR2## with a liquid crystalline polyester represented by the formula ##STR3## in which R.sub.1, R.sub.2 X.sub.2, X, Z, E.sup.1, E.sup.2 E.sup.5, w, x, y, z a, b and n each represent specified groups or values under conditions such that a transesterification reaction will occur.

REFERENCES:
patent: 4619975 (1986-10-01), Matzner
patent: 4837284 (1989-06-01), Matzner
Advances in Polymer Science, vol. 59 Springer-Verlag, Heidelberg (1984) pp. 1-158.
ACS Symposium Series 435, Weiss et al, American Chemical Society (1990). Current Topics in Liquid Crystalline Polymer pp. 1-13.
Waehumad et al, Polymer Preprint 1989, pp. 252-253.
McGrath et al, Poly. Eng. Sci. vol. 17, p. 648 (1977).
Auman et al, Polymer, vol. 29, p. 938 (1988).

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