Thermosetting hydrazide polymers
Abstract
Abstract RESINS HAVING GOOD THERMAL AND CHEMICAL STABILITY CAN BE MADE BY CURING CHEMICALLY STABLE ALICYCLIC ENDO END CAPPED AROMATIC PREPOLYMERS. THE PREPOLYMERS CAN BE MADE BY REACTING PROPER STOICHIOMETRIC AMOUNTS OF AN AROMATIC OR ALIPHATIC POLYCARBOXYLIC ACID OR DERIVATIVE WITH A SUBSTITUTED OR UNSUBSTITUTED HYDRAZINE COMPOUND, SUCH AS METHYLHYDRAZINE, DIMETHYLHYDRAZINE, PHENYLHYDRAZINE, OR DIPHENYLHYDRAZINE AND END CAPPING WITH AN ALICYCLIC ENDO COMPOUND HAVING THE FORMULA: 1-Y2,2-Y3,3-Y4,4-Y5,5-Y6,5-Y7,6-(Z2-Z1-),6-Y1,1,4-(-X-)- CYCLOHEX-2-ENE WHEREIN Y1-Y7, INCLUSIVE, CAN BE HYDROGEN, HALOGEN, NITRO, ARYL, ALKYL, ALKYL ETHER, OR ALKARYL; X CAN BE CARBONYL, OXYGEN, SULFUR, METHYLENE, HALOGEN SUBSTITUTED METHYLENE, ALKYL SUBSTITUTED METHYLENE, OR ARYL SUBSTITUTED METHYLENE; Z1 CAN BE AN ARYLENE RADICAL OR AN ALKYLENE GROUP HAVING 0 TO 4 CARBON ATOMS; AND Z2 CAN BE AN ACID GROUP, AND ACID HALIDE, AN AMINE, OR AN ESTER GROUP. THE END CAPPING COMPOUNDS ARE SYNTHESIZED BY REACTING A CYCLODIOLEFIN WITH AN OLEFINIC COMPOUND ACCORDING TO A DIELS-ALDER REACTION.
Inventors
- 👤 E Burns
- 👤 P Peninsula
- 👤 R Jones
Bibliographic Details
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