Two-dimensional benzobisoxazole rigid-rod polymers

A two-dimensional, rigid-rod polymer of the formula: wherein x, y and z each has a value of 5 to 40; wherein the sum of x, y and z is about 20 to 100; and wherein PBX is a repeating group of the formula: is prepared by the polycondensation of trimeric acid (TMA) with 4-[5-amino-6-hydroxybenzoxazol-2...

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Bibliographische Detailangaben
Hauptverfasser:	DOTRONG, MY, EVERS, ROBERT C, MINHHOA
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	A two-dimensional, rigid-rod polymer of the formula: wherein x, y and z each has a value of 5 to 40; wherein the sum of x, y and z is about 20 to 100; and wherein PBX is a repeating group of the formula: is prepared by the polycondensation of trimeric acid (TMA) with 4-[5-amino-6-hydroxybenzoxazol-2-yl]benzoic acid (ABA) in polyphosphoric acid (PPA). A two-dimensional, rigid-rod polymer of the formula: wherein x, y and z each has a value of 5 to 40; wherein the sum of x, y and z is about 20 to 100; and wherein PBX is a repeating group of the formula: is prepared by the polycondensation of trimeric acid (TMA) with 4-[5-amino-6-hydroxybenzoxazol-2-yl]benzoic acid (ABA) in polyphosphoric acid (PPA).