1971
DOI: 10.1002/ange.19710831002
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Die Synthese heterocyclischer Ringsysteme für wärmebeständige Kunststoffe aus Polyisocyanaten

Abstract: Die insbesondere in den Vereinigten Staaten durchgefuhrten Untersuchungen auf dem Raumfahrt-und Raketengebiet haben groJes Interesse an Kunststoffen mit erhohter Warmebestandigkeit heruorgerufen. Es zeigte sich, dap es moglich ist, mit organischen Kunststoffen wesentlich iiber die vermutete Grenze der Warmebestiindigkeit hinauszugelangen und Kunststoffe und Polymere zu synthetisieren, die den Temperaturbereich von ca. 200 bis ca. 500°C erreichen, der urspriinglich den anorganischen Stoffen vorbehalten schien.

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Cited by 16 publications
(6 citation statements)
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“…Phenol and cresol are the preferred solvents, and the cresol solutions of 33 can be used directly for wire coating and other applications (99).…”
Section: Addition/condensation Polymersmentioning
confidence: 99%
“…Phenol and cresol are the preferred solvents, and the cresol solutions of 33 can be used directly for wire coating and other applications (99).…”
Section: Addition/condensation Polymersmentioning
confidence: 99%
“…If the reaction of MDI with pyromellitic dianhydride in DMF is conducted at low temperature and terminated with water or benzoic acid, poly (imide ureas) can be obtained . The reactions of diisocyanate with dianhydrides has been summarized recently by Merten (1971).…”
Section: Scheme XV Poly (Imides)mentioning
confidence: 99%
“…Another approach to poly (hydantoins) from diisocyanates involves reaction of Leuch's anhydrides with isocyanates (Merten, 1971).…”
Section: B Poly (Hydantoins)mentioning
confidence: 99%
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“…The diphenyl bases Benzidine have aroused interest as cross-linking agents, e.g., in polyurethane plastics [10], in which they can noticeably increase the temperature stability [11]. The diphenyl radical has a chain-stiffening effect in polyamides [12].…”
Section: Introductionmentioning
confidence: 99%