Features of the Crystal Structure of the Polyimide Derived from 3,3'-Diaminobenzophenone and 3,3',4,4'-Benzophenonetetracarboxylic Dianhydride |
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Authors: | Yudin V E Kalbin A G Meleshko T K Grigor'ev A I Gubanova G N Bogorad N N Panov Yu N Pozdnyakov O F Redkov B P Pozdnyakov A O Kudryavtsev V V |
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Institution: | (1) Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg, Russia;(2) Ioffe Physicotechnical Institute, Russian Academy of Sciences, St. Petersburg, Russia;(3) Institute of Machine Science Problems, Russian Academy of Sciences, St. Petersburg, Russia |
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Abstract: | Changes occurring in the structural organization of the thermoplastic polyimide derived from 3,3'-diaminobenzophenone and 3,3',4,4'-benzophenonetetracarboxylic dianhydride on heat treatment at temperatures in the range 250-350°C were studied, and the influence of these changes on the rheological behavior of the polymer was examined. |
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