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Hypercrosslinked polystyrene microspheres by suspension and dispersion polymerization
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SYSNO ASEP 0360930 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Hypercrosslinked polystyrene microspheres by suspension and dispersion polymerization Author(s) Šálek, Petr (UMCH-V) RID, ORCID
Horák, Daniel (UMCH-V) RID, ORCIDSource Title E-Polymers. - : EUROPEAN POLYMER FEDERATION - ISSN 1618-7229
-, 064 (2011), s. 1-12Number of pages 12 s. Language eng - English Country US - United States Keywords polystyrene ; microspheres ; hypercrosslinked Subject RIV EE - Microbiology, Virology R&D Projects GA203/09/0857 GA ČR - Czech Science Foundation (CSF) GAP503/10/0664 GA ČR - Czech Science Foundation (CSF) 2B06053 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000291989400004 DOI 10.1515/epoly.2011.11.1.688 Annotation To determine the influence of particle size on the specific surface area of hypercrosslinked poly(styrene-co-divinylbenzene) (PS) microspheres. Suspension and dispersion polymerization were chosen for their preparation. Dispersion copolymerization of styrene and divinylbenzene (DVB) in ethanol was stabilized by (hydroxypropyl)cellulose (HPC) and initiated with dibenzoyl peroxide . Monodisperse 1.4-µm microspheres were prepared in the presence of 3.6 wt% HPC. Microspheres were chloromethylated with chloromethyl methyl ether , chloromethyl ethyl ether or chloromethyl octyl ether to investigate the effect of the chloromethylation agent on the specific surface area of microspheres. Chloromethylated microspheres were hypercrosslinked in 1,2-dichloroethane (DCE) with SnCl4. The effects of the (DVB) and DCE/microsphere ratio on properties of the product were studied. Characterization of porous structure were done by dynamic desorption of nitrogen, cyclohexane regain and mercury porosimetry. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2012 Electronic address http://www.e-polymers.org/journal/papers/dhorak_230611.pdf
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