Fractionation of moderate molecular weight polysiloxanes by centrifugal TLC.
Fractionation of polydispersed polysiloxanes (1-2 g) into narrow molecular weight fractions has been achieved by a rapid (30-60 min) convenient process, using the Cyclograph Centrifugal Chromatography System. These narrow molecular weight poly(dimethylsiloxane) fractions can be used as secondary standards for GPC.
Gupta
S K
SK
KB and DP Loker Hydrocarbon Institute, Department of Chemistry, University of Southern California, Los Angeles 90089-1661, USA.
Sargent
J R
JR
Weber
W P
WP
D002498:Centrifugation / Q000379:methods; D002850:Chromatography, Gel; D002855:Chromatography, Thin Layer / Q000379:methods; D020099:Coated Materials, Biocompatible / Q000032:analysis*; D004129:Dimethylpolysiloxanes / Q000032:analysis*; D012828:Silicones / Q000032:analysis*
D020099:Coated Materials, Biocompatible; D004129:Dimethylpolysiloxanes; D012828:Silicones; C013830:baysilon