Influence of molecular weight distribution on the IR spectra of polyethylene glycols
| Autor: | Yu.S. Lipatov, L. V. Dubrovina, G.M. Semenovich |
|---|---|
| Rok vydání: | 1986 |
| Předmět: |
Range (particle radiation)
Materials science education technology industry and agriculture General Engineering Analytical chemistry Infrared spectroscopy Polyethylene Spectral line chemistry.chemical_compound chemistry Polymer chemistry Molar mass distribution Chemical stability Sample preparation Macromolecule |
| Zdroj: | Polymer Science U.S.S.R.. 28:460-469 |
| ISSN: | 0032-3950 |
| DOI: | 10.1016/0032-3950(86)90106-1 |
| Popis: | The IR spectra of individual polyethylene glycols ( M = 2000, 6000 and 40,000) and their blends have been investigated over a wide range of composition. It was found that the optical density of structure-sensitive bands in the spectra of the blends depends on their composition and on the temperature conditions of sample preparation. The isomeric composition and conformational regularity of macromolecules in the crystallized samples correspond to the thermodynamic stability of the polymer-homologue blend in the melt. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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