Picture of smart phone in human hand

World leading smartphone and mobile technology research at Strathclyde...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by Strathclyde researchers from the Department of Computer & Information Sciences involved in researching exciting new applications for mobile and smartphone technology. But the transformative application of mobile technologies is also the focus of research within disciplines as diverse as Electronic & Electrical Engineering, Marketing, Human Resource Management and Biomedical Enginering, among others.

Explore Strathclyde's Open Access research on smartphone technology now...

Synthesis of Davankov-type hypercrosslinked resins using different isomer compositions of vinylbenzyl chloride monomer, and application in the solid-phase extraction of polar compounds

Fontanals, Núria and Cortés, Jaime and Galia, Marina and Marce, Rosa Maria and Cormack, Peter A.G. and Borrull, Francesc and Sherrington, David C. (2005) Synthesis of Davankov-type hypercrosslinked resins using different isomer compositions of vinylbenzyl chloride monomer, and application in the solid-phase extraction of polar compounds. Journal of Polymer Science Part A: Polymer Chemistry, 43 (8). pp. 1718-1728. ISSN 0887-624X

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

Abstract

Two different gel-type resins have been prepared by suspension polymerization using 2 wt % divinylbenzene (DVB) with either p-vinylbenzyl chloride (pVBC) or a mixture of VBC isomers (similar to 70% m-; similar to 30% p-). Significant difference in the chlorine content was observed, which was attributed to a more favored hydrolysis process when p-VBC was used. The presence of hydroxyl groups has been confirmed by elemental microanalytical data and solid-state C-13 cross-polarization/magic angle spinning (CP-MAS) nuclear magnetic resonance (NMR) spectra. Hypercrosslinked resins were prepared from both gel-type precursors by treatment with FeCl3, in 1,2-dichloroethane (DCE) at 80 degrees C. The resultant resins showed differences in specific surface area and degree of hydrophilicity. The performance of the hypercrosslinked resins was evaluated in solid-phase extraction (SPE) of polar compounds, and better results were obtained for the hypercrosslinked resin prepared from p-VBC that combines a relatively high specific surface area (908 m(2) g(-1)) and somewhat higher oxygen content (3.96 wt % O).