Two processes make high-performance polymers resistant to solvents, without compromising mechanical characteristics. Polymers show improved solvent resistance while retaining high toughness, thermoformability, and mechanical performance. Multistep process involves conversion of pendent bromo group to ethynyl group, while direct process involves reacting hydroxy-terminated sulfone oligomers or polymers with stoichiometric amount of 5-(4-ethynylphenoxy) isophthaloyl chloride. Applications for new polymers include adhesives, composite resin matrices, moldings, ultrafiltration membranes, protective coatings, and such electrical insulators as thin films for microelectronic circuitry.


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    Titel :

    Sulfone/Ester Polymers Containing Pendent Ethynyl Groups


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    1986-07-01



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Polyimides Containing Pendent Ethynyl Groups

    Hergenrother, Paul M. / Jensen, Brian J. | NTRS | 1994



    Phenoxy Resins Containing Pendent Ethynyl Groups

    Hergenrother, P. M. | NTRS | 1986