Electron paramagnetic resonance spectroscopic investigation of the synthesis of poly(p-phenylene sulfide/disulfide), PPS/DS
| Autor: | Douglas W. Lowman, David R. Fagerburg |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
inorganic chemicals
chemistry.chemical_classification Reaction mechanism Condensation polymer Polymers and Plastics Sulfide Radical Organic Chemistry chemistry.chemical_element Photochemistry Sulfur law.invention Inorganic Chemistry chemistry.chemical_compound chemistry law Poly(p-phenylene) Materials Chemistry Electron paramagnetic resonance Polysulfide |
| Zdroj: | Macromolecules. 26:4606-4612 |
| ISSN: | 1520-5835 0024-9297 |
| DOI: | 10.1021/ma00069a029 |
| Popis: | The reaction of diiodobenzene and sulfur in air at elevated temperatures (230-300°C), has been investigated by high-temperature EPR spectroscopy. The first direct observation of radicals under conditions of poly(p-phenylene sulfide/disulfide) synthesis is reported. Radicals observed include both a sulfur radical and a carbon radical. EPR experiments with monomers indicate the importance of polysulfide linkages, such as disulfide, with and without iodine or iodo substitution for the formation of these radical species |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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