The Solvation of High Molecular Substances, Especially Rubber
| Autor: | C. M. Blow, P. Stamberger |
|---|---|
| Rok vydání: | 1930 |
| Předmět: |
chemistry.chemical_classification
Polymers and Plastics Depolymerization Vapor pressure technology industry and agriculture Solvation Thermodynamics Polymer complex mixtures Toluene Solvent Viscosity chemistry.chemical_compound chemistry Natural rubber visual_art Materials Chemistry visual_art.visual_art_medium Organic chemistry |
| Zdroj: | Rubber Chemistry and Technology. 3:409-417 |
| ISSN: | 1943-4804 0035-9475 |
| DOI: | 10.5254/1.3535503 |
| Popis: | 1. On the basis of new experimental data on rubber, the theories of the solvation of high molecular substances are discussed. 2. In this discussion the measurements of the swelling pressure of rubber in toluene are described. The values obtained, and also the measurements of the depression of the vapor pressure lead to the conclusion that rubber cannot be considered a mixture of homologous polymers. 3. The consistency or viscosity of gels is without effect on the decrease in the activity of the solvent (measured by the depression of the vapor pressure and the swelling pressure). 4. The conclusion is drawn that mastication cannot be considered a depolymerization. 5. On the basis of measurements of the viscosity of solutions of rubber-gas black compounds it follows that conclusions as to the molecular weight of the dissolved phase cannot be drawn from viscosity measurements without further ado. 6. The theories of the distribution of high molecular substances in solution are briefly discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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