| Autor: |
A.M. Dubinskaya, A. N. Streletskii |
| Rok vydání: |
1988 |
| Předmět: |
|
| Zdroj: |
Polymer Science U.S.S.R.. 30:1514-1520 |
| ISSN: |
0032-3950 |
| DOI: |
10.1016/0032-3950(88)90439-x |
| Popis: |
Low-temperature adsorption of argon, volumometry, ESR and mass-spectroscopy were used to study processes taking place during mechanical treatment of polyorganosilsesquioxanes in vibratory mills at 80-to-300°K. After mechanical treatment the specific surface of polymers reaches 300-to-400 m2/g and is stabilized by crosslinks formed during mechanical breakdown. It was found that crosslinking and an increase in the specific surface of polyphenylsilsesquioxane only occur during low-temperature (80-to-240°K) dispersion; a system was proposed for free-radical reactions resulting in crosslinking of polymer chains at low temperature. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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