Picture of UK Houses of Parliament

Leading national thinking on politics, government & public policy through Open Access research

Strathprints makes available scholarly Open Access content by researchers in the School of Government & Public Policy, based within the Faculty of Humanities & Social Sciences.

Research here is 1st in Scotland for research intensity and spans a wide range of domains. The Department of Politics demonstrates expertise in understanding parties, elections and public opinion, with additional emphases on political economy, institutions and international relations. This international angle is reflected in the European Policies Research Centre (EPRC) which conducts comparative research on public policy. Meanwhile, the Centre for Energy Policy provides independent expertise on energy, working across multidisciplinary groups to shape policy for a low carbon economy.

Explore the Open Access research of the School of Government & Public Policy. Or explore all of Strathclyde's Open Access research...

Strathprints

Equilibrium speciation in moderately concentrated formaldehyde−methanol−water solutions investigated using 13C and 1H nuclear magnetic resonance spectroscopy

Gaca, Katarzyna and Parkinson, John and Lue, Leo and Sefcik, Jan (2014) Equilibrium speciation in moderately concentrated formaldehyde−methanol−water solutions investigated using 13C and 1H nuclear magnetic resonance spectroscopy. Industrial and Engineering Chemistry Research, 53 (22). pp. 9262-9271. ISSN 0888-5885

Full text not available in this repository.Request a copy from the Strathclyde author

Abstract

We used 13C and 1H NMR spectroscopy to examine the equilibrium speciation in formaldehyde−methanol−water solutions at moderate formaldehyde concentrations such as those used in the synthesis of formaldehyde-based organic gels. Concentrations of small methylene glycol oligomers and their methoxylated forms found in these solutions were quantitatively determined over a range of formaldehyde concentrations and methanol−water ratios, and at temperatures between 10 and 55 °C. Using the measured concentrations, equilibrium constants for methylene glycol dimer and trimer formation as well as methoxylation of these oligomers were calculated. Based on this, we developed a quantitative equilibrium model for calculation of formaldehyde-related species concentrations over a range compositions relevant for formaldehyde based sol−gel processes allowing for more rational design of formaldehyde polymerization systems.

Item type:Article
ID code:48875
Keywords:NMR spectroscopy, formaldehyde, equilibrium models, Chemistry, Chemical Engineering(all), Chemistry(all), Industrial and Manufacturing Engineering
Subjects:Science > Chemistry
Department:Faculty of Engineering > Chemical and Process Engineering
Faculty of Science > Pure and Applied Chemistry
Technology and Innovation Centre > Bionanotechnology
Technology and Innovation Centre > Continuous Manufacturing and Crystallisation (CMAC)
Depositing user: Pure Administrator
Date deposited:30 Jun 2014 08:59
Last modified:15 Feb 2019 03:38
Related URLs:
URI:https://strathprints.strath.ac.uk/id/eprint/48875
Export data:
CORE (COnnecting REpositories)