|
| << vorige |
Tijdschrift beschrijving
Alle jaargangen van het bijbehorende tijdschrift
Alle afleveringen van het bijbehorende jaargang
Alle artikelen van de bijbehorende aflevering
Details van artikel 7 van 7 gevonden artikelen
| Titel: |
The Kinetics of the Three-dimensional Photopolymerization of Some Diacrylates |
| Auteur: |
Bratus, A. Turovski, A. Medvedevskikh, Yu. Semenyuk, I. Zaikov, G. |
| Verschenen in: |
International journal of polymeric materials |
| Paginering: | Jaargang 48 (2001) nr. 3 pagina's 371-379 |
| Jaar: |
2001 |
| Inhoud: |
The kinetics of photopolymeryzation of diacrylates: diethylene glycol(DEGDA)-, 1, Cbutanediol-, 1,6-hexanediol- and dipropylene glycol diacrylate at a wide range of photoinitiator concentration and thickness of the layer of the polymerization composition was inves- tigated. We found the dependencies between the maximum rate of the process and the thickness of photocomposition layer and kinetic parameters. Experimental data were compared with a kinetic model of the photoinitiated three-dimensional polymerization. It was deter- mined that the kinetic model allows us to describe the process of three- dimensional polymerization over the whole range of conversion. Molar extinction coefficient of photopolymerization (ε) and quantum yield of the photoinitiator decomposition (λ), rate constants of homo (k1)- and heterophase (k2) process were estimated. It was determined that the constants k1 and k2 of the investigated diacrylates are first order. Quantum yields (λ) of the decomposition of photoinitiator are about 1.0. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 7 van 7 gevonden artikelen
| << vorige |