title: Batchwise and continuous nanofiltration of POSS-tagged Grubbs-Hoveyda-type olefin metathesis catalysts.
abstract: New molecular-weight-enlarged metathesis catalysts, which bear polyhedral oligomeric silsesquioxane (POSS) tags, were synthesized and characterized. The catalysts can be recovered from the reaction mixture by using nanofiltration techniques and can be reused. It was found that the membranes Starmem 228 and PuraMem 280 successfully separate the catalyst from the post-reaction mixtures to below 3 ppm. The application of these POSS-tagged catalysts in a continuous metathesis reaction was also investigated.
authors.affiliation: Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
authors.forename: Anna
authors.initials: A
authors.lastname: Kajetanowicz
authors.forename: Justyna
authors.initials: J
authors.lastname: Czaban
authors.forename: G Rajesh
authors.initials: GR
authors.lastname: Krishnan
authors.forename: Maura
authors.initials: M
authors.lastname: Malińska
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Woźniak
authors.forename: Humera
authors.initials: H
authors.lastname: Siddique
authors.forename: Ludmila G
authors.initials: LG
authors.lastname: Peeva
authors.forename: Andrew G
authors.initials: AG
authors.lastname: Livingston
authors.forename: Karol
authors.initials: K
authors.lastname: Grela
mesh_terms: D000475:Alkenes / Q000737:chemistry; D002384:Catalysis; D008567:Membranes, Artificial; D036103:Nanotechnology / Q000295:instrumentation / Q000379:methods*; D017646:Organosilicon Compounds / Q000737:chemistry*; D012428:Ruthenium / Q000737:chemistry*; D014462:Ultrafiltration / Q000295:instrumentation / Q000379:methods
chemical_list: D000475:Alkenes; D008567:Membranes, Artificial; D017646:Organosilicon Compounds; D012428:Ruthenium