Molecular-mass distributions resulting from the homopolymerization of monoepoxides initiated by tertiary amines
| Autor: | R. J. J. Williams, A. Vazquez, R. Deza |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Reaction mechanism
Polymers and Plastics Tertiary amine Chemistry Chain transfer General Chemistry Degree of polymerization Condensed Matter Physics Ring-opening polymerization Anionic addition polymerization Computational chemistry Intramolecular force Polymer chemistry Materials Chemistry Molar mass distribution |
| Zdroj: | Polymer Bulletin. 28:459-465 |
| ISSN: | 1436-2449 0170-0839 |
| DOI: | 10.1007/bf00297340 |
| Popis: | A reaction scheme based on propagation and intramolecular chain transfer steps is proposed for the anionic homopolymerization of epoxides initiated by tertiary amines. Chain transfer regenerates a living chain and gives a dead chain with terminal vinilydene unsaturations and hydroxy groups. The possibility of generating phenols or substituted phenols is also considered. Molecular-mass distributions were predicted as a function of conversion by both kinetic and Monte Carlo methods. Predictions were compared with experimental results reported in the literature. The evolution of the number-average degree of polymerization could be reasonably predicted. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink