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Homogeneous polyimide films with increased bis(N,N'-disalicylidene-1,2-phenylenediaminato)zirconium(IV) content

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dc.contributor.author He, Liling en_US
dc.contributor.author Wagner, Shawn en_US
dc.contributor.author Illingsworth, Marvin en_US
dc.contributor.author Jensen, Andrew en_US
dc.contributor.author Yap, Glenn en_US
dc.contributor.author Rheingold, Arnold en_US
dc.date.accessioned 2006-07-19T19:39:02Z en_US
dc.date.available 2006-07-19T19:39:02Z en_US
dc.date.issued 1997-12 en_US
dc.identifier.citation Chemistry of Materials 9N12 (1997) 3005-3011 en_US
dc.identifier.issn 1520-5002 en_US
dc.identifier.uri http://hdl.handle.net/1850/2166 en_US
dc.description RIT community members may access full-text via RIT Libraries licensed databases: http://library.rit.edu/databases/
dc.description.abstract To increase the concentration of inorganic component in polyimide films and enhance the materials' resistance to atomic oxygen, the complex (4-amino-N,N'-disalicylidene-1,2-phenylenediaminato)(N,N'-disalicylidene-1,2-phenylenediaminato)zirconium(IV), Zr(adsp)(dsp), was synthesized and allowed to react with poly(maleic anhydride) (PMA). The resulting Zr-PMA pendent polymer was mixed with a commercially available polyamic acid of pyromellitic dianhydride and 4,4'-oxydianiline (PMDA-ODA) in various proportions in NMP. Films were then cast onto glass substrates, and thermally imidized. The new mixed ligand complex and the Zr-PMA polymer were characterized by TLC, IR, 1H NMR, and elemental analysis, along with X-ray crystallography for the former and TGA for the latter. The imidized films of the Zr-PMA polymer blended with PMDA-ODA polyimide were studied by optical examination of multilayer film samples for crack formation, and SEM photography before and after atomic oxygen erosion in a plasma asher. The upper limit of Zr complex incorporation onto prebaked poly(maleic anhydride) was approximately 24% (mol of Zr/mol of repeat units). The upper limit of zirconium complex concentration for the Zr-PMA/PMDA-ODA blends, above which films crack upon imidization, was 8 mol %, compared to 4 mol % for mixtures of Zr(dsp)2 in PMDA-ODA polyimide. en_US
dc.description.sponsorship The authors wish to gratefully acknowledge the NASA Joint Venture program and RIT for financial support of this research. en_US
dc.format.extent 31371 bytes en_US
dc.format.mimetype application/pdf en_US
dc.language.iso en_US en_US
dc.publisher The American Chemical Society: Chemistry of Materials en_US
dc.subject Atomic oxygen en_US
dc.subject Polyimide films en_US
dc.subject Resistance en_US
dc.title Homogeneous polyimide films with increased bis(N,N'-disalicylidene-1,2-phenylenediaminato)zirconium(IV) content en_US
dc.type Abstract en_US
dc.identifier.url http://dx.doi.org/10.1021/cm970356i

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