About Kinetic analysis of reactions of Si-based epoxy resins by near-infrared spectroscopy, ^1^3C NMR and soft-hard modelling [An article from: Analytica Chimica Acta] detail
- Published on: 2007-02-05
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Kinetic analysis of reactions of Si-based epoxy resins by near-infrared spectroscopy, ^1^3C NMR and soft-hard modelling [An article from: Analytica Chimica Acta] Description
This digital document is a journal article from Analytica Chimica Acta, published by Elsevier in 2007. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
Soft- and hard-modelling strategy was applied to near-infrared spectroscopy data obtained from monitoring the reaction between glycidyloxydimethylphenyl silane, a silicon-based epoxy monomer, and aniline. On the basis of the pure soft-modelling approach and previous chemical knowledge, a kinetic model for the reaction was proposed. Then, multivariate curve resolution-alternating least squares optimization was carried out under a hard constraint, that compels the concentration profiles to fulfil the proposed kinetic model at each iteration of the optimization process. In this way, the concentration profiles of each species and the corresponding kinetic rate constants of the reaction, unpublished until now, were obtained. The results obtained were contrasted with ^1^3C NMR. The joint interval test of slope and intercept for detecting bias was not significant (@a=5%).
