Novel initiating system based on AlCl3 etherate for quasiliving cationic polymerization of styrene |
| |
| Authors: | Sergei V. Kostjuk Alexei Yu. Dubovik Irina V. Vasilenkol Vyacheslav P. Mardykin Ludmila V. Gaponik Fyodor N. Kaputsky Lev M. Antipin |
| |
| Affiliation: | (1) Research Institute for Physical Chemical Problems of the Belarusian State University, Leningradskaya St., 14, 220050 Minsk, Belarus;(2) Institute of Physical Chemistry, Russian Academy of Sciences, Leninsky prosp., 31, 119991 Moscow, Russian Federation |
| |
| Abstract: | Summary Quasiliving cationic polymerization of styrene was obtained in the system 2-phenyl-2-propano-/AlCl3·OBu2/Bu2O in a mixture of 1,2-dichloroethane and n-hexane (55:45 viv) at -15 °C. The molecular weights of the polymers (Mn) increased in direct proportion to the monomer conversion. However, the experimental Mns are essentially higher than theoretical ones, indicating that slow initiation relative to propagation takes place. The molecular weight distributions were broad (Mw/Mn 2.5), probably due to the slow initiation and slow exchange between reversibly terminated and propagating species. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
