Partial specific volume of thermotropic polybibenzoates with different spacers
| Autor: | M.J. González-Tejera, JoséM. Pereña, Irmina Hernández-Fuentes, and Antonio Bello |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
chemistry.chemical_classification
Materials processing Polymers and Plastics Chemistry General Chemistry Polymer Condensed Matter Physics Tetrachloroethane Thermotropic crystal Crystallography Group (periodic table) Partial specific volume Liquid crystal Polymer chemistry Materials Chemistry Solvent effects |
| Zdroj: | Polymer Bulletin. 31:111-115 |
| ISSN: | 1436-2449 0170-0839 |
| DOI: | 10.1007/bf00298772 |
| Popis: | Partial specific volume (v 2 o ) of polybibenzoates with all-methylene and oxyethylene spacers have been determined in chloroalifatic solvents. The polybibenzoate with a heptamethylene spacer exhibits a more expanded state than the ones with one, two and three oxyethylene units in the spacer. A solvent effect on v 2 o has been observed. Nevertheless, the values of v 2 o in tetrachloroethane are in accord with the calculated by group contributions from rubbery polymers. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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