Mechanism of Nitrogen-Containing Cyclic Polymerization

摘要: Abstract The comprehensive polymerization mechanism of the nitrogen-containing cycles 1-azobicyclo (3,1,0)-hexane (ABH), conidine, quinuclidine, and triethylenediamine under action quaternary ammonium salts, BF3 complex with conidine is studied. Polymerization living polymers type, active centers monomer are ions ion pairs: activity latter comparable to exceeds that free ions. effects nature counterion, cation, medium polarity on reaction rate investigated. found depend counterion in pairs, but not proportional size pairs. In case K+ = 0.2, K±(Cl−) 0.28, K±(Br−) 0.36, K±(I−) 0.51, K±(ClO4 −) 0.62 (liter)/(mole)(min). heats nitrogen-cyclic polymer...