HIGH TEMPERATURE POLYMERS FROM 1,3-DIPOLAR ADDITION REACTIONS.
Quarterly progress rept. no. 13, 1 Feb-30 Apr 68,
IOWA UNIV IOWA CITY DEPT OF CHEMISTRY
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The suitability of disubstituted acetylenes, quinones, and isocyanates as dipolarophiles in polymer forming reactions with tetrazoles was investigated. The reaction of phenylisocyanate with 2,5-diphenyltetrazole yielded the model compound 1,3,4-triphenyl-1,2,4-triazolone. The other dipolarophiles did not yield the expected model compounds. The synthesis of an A-B monomer, 2-phenyl-5-4-ethynylphenyl-tetrazole is being attempted from p-tolualdehyde. The polymerization reactions of 2,2-diphenyl-5,5-m-phenylene-ditetrazole with m- and p-diethynylbenzene, tetrafluoro terephthalonitrile, terephthalonitrile, and 4,4-dicyanobiphenyl were carried out to yield poly1,1-diphenyl-3,3-m-phenylene-5,5-m-phenylenedipyrazole, poly1,1-diphenyl-3,3-m-phenylene-5,5-p-phenylenedipyrazole, poly1,1-diphenyl-3,3-m-phenylene-5,5-tetrafluoro-p-phenylene-ditriazole, poly1,1-diphenyl-3,3-m-phenylene-5,5-p-phenyleneditriazole and poly1,1-diphenyl-3,3-m-phenylene-5,5-p-biphenyleneditriazole respectively. Author
- Polymer Chemistry