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Phthalonitrile-terminated aromatic polyimides
standard
posted on 2016-06-07, 00:00 authored by Gaetano Francis D'AlelioPhthalonitrile-terminated aromatic polyimides and polyimide-phthalocyanines are provided. The phthalonitrile-terminated polyimides are prepared by reacting an anhydride end-capped, aromatic polyimide with at least two moles of a dicyano aromatic monoamine to give a polyimide of the structural formula: ##SPC1## Wherein Ar is a divalent aromatic organic radical, Ar' is a tetravalent aromatic organic radical, the four carbonyl groups being attached directly to separate carbon atoms and each pair of carbonyl groups being attached to adjacent carbon atoms in the Ar' radical, R' is an aromatic organic radical, the two cyano groups being ortho in the aromatic radical and n is a positive integer of at least 1. The phthalonitrile-terminated polyimides may be chain-extended to higher molecular weight, infusible, insoluble polymers by heating at about 180.degree.C. to about 300.degree.C., or by reaction with polyvalent metals, such as copper, iron, magnesium, etc. or salts of such metals to yield the polyimidemetallo phthalocyanines. The materials described herein are useful as high temperature resistant coatings, molded articles and laminated structures.
History
Patent Number
US 3890274 B2Other Application
05/514,256Inventor
Gaetano Francis D'AlelioInventor from Local Institution
Gaetano Frank D'AlelioAssignee
University of Notre Dame Du LacDate Modified
2016-06-07Language
- English
Claims
7Publisher
United States Patent and Trademark OfficeCooperative Patent Classification Codes
C08G 73/0611 (20130101); C08G 73/101 (20130101); C08G 73/1046 (20130101); C09B 47/067 (20130101); C08G 73/1085 (20130101); C08G 73/1089 (20130101); C08G 73/1067 (20130101)Contributor
Gaetano Frank D'AlelioInternational Patent Classification Codes
C08G 73/00 (20060101); C08G 73/10 (20060101); C08G 73/06 (20060101); C09B 47/04 (20060101); C09B 47/067 (20060101); C08g 020/32 ()US Patent Classification Codes
528/127; 525/436; 528/125; 528/128; 528/168; 528/172; 528/173; 528/176; 528/183; 528/184; 528/189; 528/190; 528/192; 528/193; 528/226; 528/228; 528/229; 528/352; 528/353; 528/360; 528/361; 528/481; 528/503; 540/123;Usage metrics
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