Počet záznamů: 1

Hypercrosslinked polystyrene microspheres by suspension and dispersion polymerization

SYSNO ASEP	0360930
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Hypercrosslinked polystyrene microspheres by suspension and dispersion polymerization
Tvůrce(i)	Šálek, Petr (UMCH-V)_{RID, ORCID} Horák, Daniel (UMCH-V)_{RID, ORCID}
Zdroj.dok.	E-Polymers. - : EUROPEAN POLYMER FEDERATION - ISSN 1618-7229 -, 064 (2011), s. 1-12
Poč.str.	12 s.
Jazyk dok.	eng - angličtina
Země vyd.	US - Spojené státy americké
Klíč. slova	polystyrene ; microspheres ; hypercrosslinked
Vědní obor RIV	EE - Mikrobiologie, virologie
CEP	GA203/09/0857 GA ČR - Grantová agentura ČR
	GAP503/10/0664 GA ČR - Grantová agentura ČR
	2B06053 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy
CEZ	AV0Z40500505 - UMCH-V (2005-2011)
UT WOS	000291989400004
DOI	10.1515/epoly.2011.11.1.688
Anotace	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.
Pracoviště	Ústav makromolekulární chemie
Kontakt	Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358
Rok sběru	2012
Elektronická adresa	http://www.e-polymers.org/journal/papers/dhorak_230611.pdf

Počet záznamů: 1