Zirconium pendent poly(amic acid) and polyimide based on 3,4'-ODA and ODPA

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dc.contributor.author Yang, K. en_US
dc.contributor.author Illingsworth, Marvin en_US
dc.date.accessioned 2006-07-19T19:40:32Z en_US
dc.date.available 2006-07-19T19:40:32Z en_US
dc.date.issued 2000-03 en_US
dc.identifier.citation Polymer Preprints 41N1 (2000) 211-212 en_US
dc.identifier.uri http://hdl.handle.net/1850/2171 en_US
dc.description Article may be found at: http://www.polyacs.org/main/preprintsonline.shtml en_US
dc.description RIT community members may access full-text via RIT Libraries licensed databases: http://library.rit.edu/databases/
dc.description.abstract Aromatic polyimides long been attractive for applications in the aerospace and electronic industries. But many polyimide materials are readily oxidized by atomic oxygen (AO) in low earth orbit (LEO) because neutral atomic oxygen (AO) is the most predominant species. Polysiloxane-polyimide polymer blend, manufactured by Dupont as a back up material for the International Space Station (ISS) solar array design, is very durable in ground-based plasma ash testing. However this silicon containing material was observed to produce volatile contaminants, which form and escape via cracks in the coating when tested on the Long-Duration Exposure Facility, which was 69 months in LEO. In 1993, Dr. Illingsworth found that a Zr complex produced no volatile intermediates upon ground-based plasma AO exposure. In addition, zirconium complexes were thought to have all other properties required for atomic oxygen resistance (AOR) materials: ZrO sub 2 is one of the most stable metal oxides; a ZrO sub 2 protective layer should formed if the initial protective layer is compromised, i.e., a 'self-healing' property similar to that of Si-AOR film should be exhibited; Zr is relatively abundant. In this study, we synthesized and characterized a high AO durable polymer by binding Zr (adsp)(dsp) complex to the polymer chain. 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: Polymer Preprints en_US
dc.subject Erosion en_US
dc.subject Polyimides en_US
dc.subject Spacecraft en_US
dc.title Zirconium pendent poly(amic acid) and polyimide based on 3,4'-ODA and ODPA en_US
dc.type Abstract en_US

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