Picture of person typing on laptop with programming code visible on the laptop screen

World class computing and information science 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 researchers from the Department of Computer & Information Sciences involved in mathematically structured programming, similarity and metric search, computer security, software systems, combinatronics and digital health.

The Department also includes the iSchool Research Group, which performs leading research into socio-technical phenomena and topics such as information retrieval and information seeking behaviour.

Explore

Synthesis of ultra-high surface area monodisperse polymer nanoparticles

Sherrington, D.C. and MacIntyre, F.S. (2006) Synthesis of ultra-high surface area monodisperse polymer nanoparticles. Macromolecules, 39 (16). pp. 5381-5384. ISSN 0024-9297

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

Abstract

Synthesis of vinyl benzyl chloride (VBC)/divinylbenzene (DVB) copolymers via surfactant-free emulsion polymerization yields near monodisperse chloromethylated polystyrene precursor nanospheres 400 nm in diameter. These are analogous to gel-type suspension polymerized particles typically of 100-500 ím in diameter and are essentially nonporous in the dry state having only a very nominal surface area (10 m2 g-1). Cross-linking of appropriate dichloroethane swollen precursors with a high content of VBC residues in the presence of FeCl3 (i.e., using a Davankov-type strategy) yields near monodisperse porous hyper-cross-linked nanoparticles with extremely high surface areas up to 1200 m2 g-1. The latter display all the characteristics of Davakov-type resins in terms of their ability to sorb both thermodynamically “poor” and “good” solvents and in particular despite their superficial hydrophobic makeup are able to sorb significant quantities of water (up to 2.5 g/g). By adjusting the content of VBC in the precursor particles, the surface area of the near monodisperse nanoparticles can be adjusted in the range 15-1300 m2 g-1.