| Autor: |
Privalko, V. P., Kramarenko, V. Yu., Maslak, Yu. V., Rosovitsky, V. F. |
| Zdroj: |
Colloid & Polymer Science; April 1993, Vol. 271 Issue: 4 p322-327, 6p |
| Abstrakt: |
Heterocyclic networds prepared by copolymerization of oligomeric epoxy rubber (ER) with different amounts of hexamethylene diisocyanate (HMDI) were characterized by room-temperature static Young's and bulk moduli, as well as by measurements of dynamic Young's modulus and linear thermal expansivity in the temperature interval 293–503 K. It was concluded that the major factor affecting thermoelastic properties of these networks is the relative content of three-arm, six-membered isocyanoureate rings which determine the apparent overall network density, and of two-arm, five-membered oxazolidone rings which act as a sort of “internal diluent”. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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