caa a22 4500 46578710X CHVBK 20180323112012.0 cr unu---uuuuu 170327e19900901xx s 000 0 eng 10.1007/BF00306576 doi (NATIONALLICENCE)springer-10.1007/BF00306576 A new family of telechelic copolymers [Elektronische Daten] II. Initiation system PVC/BCl3 [Rudolf Lukáš, Luděk Toman] Summary: A new initiation system polyvinylchloride (PVC) /boron trichloride (BCl3) is demonstrated, which makes possible bulk polymerizations of isobutylene at a temperature about-78°C. The bulk polymerizations of isobutylene take place at the boundary between the solid and liquid phase for many hours, and PVC is grafted by isobutylene. Dichloromethane (CH2Cl2) raises the reactivity of the initiation system, and a graft copolymer poly (vinylchloride-g-isobutylene) PVC-g-PIB-Clt is formed, where-PIB-Clt is-[CH2C(CH3)2]n-CH2C(CH3)2Cl. At-20°C the polymerization of isobutylene/BCl3/CH2Cl2 proceeds in the presence of secondary alkylchlorides, such as 2,4-dichloropentane or 2,4,6-trichloroheptane, up to a 100% conversion, with formation of polyisobutylene oil $$(\bar M_n \sim 3 \times 10^3 )$$ . Springer-Verlag, 1990 Lukáš Rudolf Institute of Macromolecular Chemistry, Czechoslovak Academy of Sciences, CS-16206, Prague 6, Czechoslovakia aut Toman Luděk Institute of Macromolecular Chemistry, Czechoslovak Academy of Sciences, CS-16206, Prague 6, Czechoslovakia aut Polymer Bulletin Springer-Verlag 24/3(1990-09-01), 285-291 0170-0839 24:3<285 1990 24 289 https://doi.org/10.1007/BF00306576 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00306576 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lukáš Rudolf Institute of Macromolecular Chemistry, Czechoslovak Academy of Sciences, CS-16206, Prague 6, Czechoslovakia aut NATIONALLICENCE 700 1- Toman Luděk Institute of Macromolecular Chemistry, Czechoslovak Academy of Sciences, CS-16206, Prague 6, Czechoslovakia aut NATIONALLICENCE 773 0- Polymer Bulletin Springer-Verlag 24/3(1990-09-01), 285-291 0170-0839 24:3<285 1990 24 289 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 46578710X BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer