In the biphenol-type epoxy resin cured with catechol novolac (CN), a very weak glass transition and, thus, a very high rubbery modulus were observed. On the other hand, the glass transition was clearly observed in the system cured with phenol novolac (PN). This means that the micro-Brownian motion o
Phenolic resins: 2. Influence of catalyst type on reaction mechanisms and kinetics
โ Scribed by Marie-Florence Grenier-Loustalot; Stephane Larroque; Daniel Grande; Philippe Grenier; Didier Bedel
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 506 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0032-3861
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## Abstract The kinetics of the esterification of acetic acid with the secondary alcohol, 2โpropanol, catalyzed by the cation exchange resins, Dowex 50Wx8โ400, Amberlite IRโ120, and Amberlyst 15 has been studied at temperatures of 303, 323, and 343 K; acid to alcohol molar ratios of 0.5, 1, and 2;