1. On heat regimes of anion-activated polymerization of ε-caprolactam.
- Author
-
Davtyan, Sevan, Zakaryan, Hayk, Tonoyan, Anahit, and Varderesyan, Gagik
- Subjects
ADDITION polymerization ,CRYSTALLIZATION ,HEAT of formation ,CAPROLACTAM ,THERMAL properties of polymers ,ANIONS - Abstract
Quantitatively, the Semenov diagram of heat generation--temperature relationship is analyzed. Critical transitions of heat regimes during anion-activated polymerization of ε-caprolactam are investigated. Various outcomes as compared with classic cases already discussed by Semenov are observed for the polymerization and crystallization processes running sequentially. It was shown that the critical Semenov parameter holds even for the weak-exothermal polymerization reaction when steep transition from quasi-thermal--low temperature to quasi-adiabatic--high temperature heat regime takes place. [ABSTRACT FROM AUTHOR]
- Published
- 2007