caa a22 4500 465787703 CHVBK 20180323112014.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF00983961 doi (NATIONALLICENCE)springer-10.1007/BF00983961 Polymerization of propylene by highly active catalysts synthesized with Mg(OEt)2/benzoyl chloride/TiCl4 [Elektronische Daten] Determination of active site concentration by CO inhibition method [II Kim, Seong Woo] Summary: Active centers have been studied in the polymerization of propylene using highly active Mg(OEt)2/Benzoyl chloride/TiCl4 catalysts activated with AlEt3. The method for the measurement of active centers is based on the inhibiting effect of CO on polymerization. The activity of the present catalysts, which is higher than that of TiCl3 or MgCl2-supported catalyst, is mainly due to the higher concentration of active centers by one order of magnitude. In order to investigate the stability of active centers during polymerization the number of active centers are compared at various polymerization times. Springer-Verlag, 1990 Kim II Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, Cheongryang, P.O. Box 131, Seoul, Korea aut Woo Seong Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, Cheongryang, P.O. Box 131, Seoul, Korea aut Polymer Bulletin Springer-Verlag 23/1(1990-01-01), 35-42 0170-0839 23:1<35 1990 23 289 https://doi.org/10.1007/BF00983961 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00983961 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kim II Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, Cheongryang, P.O. Box 131, Seoul, Korea aut NATIONALLICENCE 700 1- Woo Seong Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, Cheongryang, P.O. Box 131, Seoul, Korea aut NATIONALLICENCE 773 0- Polymer Bulletin Springer-Verlag 23/1(1990-01-01), 35-42 0170-0839 23:1<35 1990 23 289 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer