Claims
- 1. A heterocycle comprising the condensation product of the reaction of a carboxylic acid chloride of the formula: ##STR30## wherein X.sub.1 =--O-- or --SO.sub.2 --,
- q=--(CF.sub.3).sub.2 C--, --SO.sub.2, --S--, or --CO--, and
- .phi.=phenyl with a difunctional diamine selected from the group consisting of compounds of the formula: ##STR31## wherein R is an aromatic hydrocarbon, and Z is selected from the group consisting of --OH, --SH, or NH.sub.2, each Z being attached to a carbon atom adjacent to a carbon having a terminal amine group.
- 2. The heterocycle of claim 1 wherein the Z=--OH.
- 3. The heterocycle of claim 1 wherein Z=--SH.
- 4. The heterocycle of claim 1 wherein Z=--NH.sub.2.
- 5. An oligomer comprising the condensation product of:
- (a) 2 moles of a phenylimide end cap including a reactive amine, phenol or sulfhydryl group;
- (b) n moles of a four-functional compound of the general formula: ##STR32## wherein R is a hydrocarbon, Y is selected from the group consisting of --OH, --NH.sub.2, or --SH, Y is on a carbon adjacent to the carbon having an --NH.sub.2, and n is selected so that the oligomer has an average formula weight of between about 500-30,000; and
- (c) n+1 moles of a dicarboxylic acid halide,
- 6. The oligomer of claim 5 wherein the end cap is selected from the group consisting of: ##STR33## R.sub.1 =lower alkyl, aryl, substituted aryl, lower alkoxy, aryloxy, halogen, or mixtures thereof;
- G=--SO.sub.2 --, --S--, --O--, or --CH.sub.2 --;
- i=1 or 2;
- j=0, 1, or 2;
- Z=--OH, --NH.sub.2, or --SH;
- T=methallyl or allyl;
- Me=methyl; and
- .phi.=phenyl.
- 7. The oligomer of claim 6 wherein z=--OH.
- 8. The oligomer of claim 6 wherein the four-functional compound is selected from the group consisting of:
- dihydroxybenzidine;
- dimercaptobenzidine;
- 2,6-diamino-3,5-dihydroxybenzene;
- 2,6-diamino-3,5-dimercaptobenzene; or
- diaminobenzidine.
- 9. The oligomer of claim 6 wherein the dicarboxylic acid halide is selected from the group consisting of: ##STR34## wherein X is an acid halide functionality, and
- q=--(CF.sub.3).sub.2 C--, --SO.sub.2 --, --S--, or --CO--.
- 10. A blend comprising the oligomer of claim 6 and a comparable, noncrosslinking polymer.
- 11. A prepreg comprising the oligomer of claim 6 and a reinforcing additive in fiber or particulate form.
- 12. A composite comprising the cured prepreg of claim 6.
REFERENCE TO RELATED APPLICATIONS
This application is a division of application Ser. No. 07/116,592, filed Nov. 3, 1987 now U.S. Pat. No. 4,965,336, which is a continuation-in-part application based upon Ser. No. 06/816,490, filed Jan. 6, 1986, now abandoned which was a continuation-in-part application based upon Ser. No. 06/651,826, filed Sep. 18, 1984, now abandoned.
US Referenced Citations (33)
Non-Patent Literature Citations (1)
Entry |
Sheppard et al., "Novel High Temperature Matrix Materials," Int. SAMPE Exhib. 1986, 31, Mater. Sci. Future 1426-33, Eng. |
Divisions (1)
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Date |
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Parent |
116592 |
Nov 1987 |
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Continuation in Parts (2)
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816490 |
Jan 1986 |
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Parent |
651826 |
Sep 1984 |
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