Birefringence in solutions and films of poly[4,4'-bis(4'-N-phenoxy)diphenylsulfon]imide of 1,3 bis(3',4-dicarboxyphenoxy)benzene
| Autor: | A. S. Gubarev, Georges M. Pavlov, I. P. Kolomiets, V. M. Svetlichnyi, G.F. Kolbina, A. L. Didenko |
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| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Materials science Birefringence Optical anisotropy Polymers and Plastics 02 engineering and technology Polymer 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound chemistry Polymer chemistry Materials Chemistry Physical chemistry 0210 nano-technology Imide Benzene Beam (structure) Macromolecule |
| Zdroj: | Polymer Science, Series A. 59:193-197 |
| ISSN: | 1555-6107 0965-545X |
| DOI: | 10.1134/s0965545x17020079 |
| Popis: | Birefringence in solutions and films of poly[4,4'-bis(4''-N-phenoxy)diphenylsulfon]imide of 1,3-bis(3',4-dicarboxyphenoxy)benzene macromolecules is studied. The method of birefringence in the flow of polymer solutions in DMF allows one to determine the proper specific optical anisotropy of the repeating unit of chain βM = +15 × 10–27 cm3 mol/g. Spontaneous birefringence in polymer films of different thickness is studied under various incidence angles of a polarized beam. The total data analysis allows one to estimate the orientation order parameter of polymer chain fragments in the vicinity of surface S0 =–0.01, which is typical of flexible-chain polymers. |
| Databáze: | OpenAIRE |
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