Polyenamines from aromatic diacetylenic diketones and diamines

Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing

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564315, 564323, 564330, 564342, 564344, 564430, 546262, 546264, 528229, C07C 8720, C08G 1200

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active

047743590

ABSTRACT:
The synthesis and characterization of several polyenamine ketones are discussed wherein conjugated diacetylenic diketones and aromatic diamines are used as a route to the formation of high molecular weight polyenamine ketones which exhibit good mechanical properties and can be cast into creasible films. Typical polymerization conditions involved the reaction of stoichiometric amounts of 1,4- or 1,3-PPPO and a diamine at 60.degree.-130.degree. C. in m-cresol at (w/w) solids content of 8-26% for a specified period of time under a nitrogen atmosphere. Novel polyenamine ketones were prepared with inherent viscosities as high as 1.99 dl/g and tough, clear amber films with tensile strengths of 12,400 psi and tensile moduli of 397,000 psi were cast from solutions of the polymers in chloroform. The polymers exhibited T.sub.g s as high as 235.degree. C. and weight losses of 14% after aging at 232.degree. C. in circulating air for sixty hours. The specific conditions for the preparation of the various polyenamine ketones are presented in Table I. In most cases, the elemental analyses for the polynamine ketones, shown in Table II, agree within .+-.0.3% of the theoretical values.

REFERENCES:
patent: 3242215 (1966-03-01), Heitmiller
Ueda, M. et al., Journal of Polymer Science, vol. 14, pp. 931-938 (1976).
Ueda, M. et al., Journal of Polymer Science, vol. 16, pp. 2809-2815 (1978).
Paulisko, J. A. et al., Journal of Polymer Science, Polymer Chemistry Edition, vol. 20, No. 11, pp. 3079-3094 (1982).

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