Solid State 13C-NMR as an Indicator of the Microstructure of a Silicon Containing Dianhydride and Derived Bisimides
| Autor: | Frank J. Dinan, Willis T. Schwartz, Terry L. St. Clair, Roger A. Wolfe, Daniel S. Hojnicki, J. Richard Pratt |
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| Rok vydání: | 1992 |
| Předmět: |
Diffraction
Materials science Polymers and Plastics Silicon Organic Chemistry chemistry.chemical_element 02 engineering and technology Carbon-13 NMR 021001 nanoscience & nanotechnology Charge-transfer complex Microstructure Spectral line chemistry.chemical_compound Crystallography Monomer 020401 chemical engineering chemistry Materials Chemistry 0204 chemical engineering 0210 nano-technology Spectroscopy |
| Zdroj: | High Performance Polymers. 4:131-139 |
| ISSN: | 1361-6412 0954-0083 |
| DOI: | 10.1088/0954-0083/4/3/001 |
| Popis: | The CP/MAS 13C-NMR spectrum of bis(3,4-dicarboxyphenyl)-dimethylsilane dianhydride (SiDA) as well as the spectra of the N-methyl and N-n-propyl bisimides derived from this dianhydride confirm the occurrence of solid state charge transfer complex (CTC) formation in these compounds. The proposed solid state alignment for SiDA was confirmed by X-ray diffraction spectroscopy. These compounds are monomeric models for polyimides and CTC formation in them supports the probability that such complexes form in polyimides. |
| Databáze: | OpenAIRE |
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