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Filtering by: Alternative title ssim Special report 717 Remove constraint Alternative title ssim: Special report 717 Creator Azmus, Dora J. Taylor Remove constraint Creator: Azmus, Dora J. Taylor Decade 1990-1999 Remove constraint Decade: 1990-1999 Degree Field Chemistry Remove constraint Degree Field: Chemistry

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  • Synthesis of polybenzimidazoles from monomers containing flexible linkages

    Creator:
    Azmus, Dora J. Taylor
    Abstract:
    Polybenzimidazoles were synthesized from 3, 3', 4, 4'-tetraminobiphenyl (diaminobenzidine, or DAB) with orthoesters, carboxylic acid derivatives (an ester and an acid) and with m-benzenedialdehyde. The products were of low molecular weight, as evidenced by low inherent viscosity, except in the case of the dialdehyde plus DAB. The product of that...
    Resource Type:
    Masters Thesis
    Full Text:
    results of such an exact quantitative study. They did not report their method of drying the methanol