Cationic polymerization of 3-azidomethyl-3-methyloxetane in the presence of the boron fluoride etherate—ethylene glycol system
The kinetics of oligomerization of 3-azidomethyl-3-methyloxetane in the presence of the boron fluoride etherate—ethylene glycol initiating system is studied by gel-permeation chromatography and IR spectroscopy methods. It is found that the molecular-mass distribution of the resulting oligooxetanediol depends on the concentration of ethylene glycol, while its molecular mass remains practically unchanged throughout the reaction. In other words, ethylene glycol serves as a chain-transfer agent. The relative chaintransfer constant is 0.5. The schemes of polymerization reactions are proposed.
KeywordsEthylene Glycol Polymer Science Series Chain Transfer Molecular Mass Distribution Chain Transfer Agent
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- 1.P. H. Plesh, The Chemistry of Cationic Polymerization (Pergamon, New York, 1963; Mir, Moscow, 1966).Google Scholar
- 2.Yu. M. Mikhailov and E. R. Badamshina, Energy-Saturated Polymers: Synthesis, Structure, Properties (Gos-NIP, Moscow, 2008) [in Russian].Google Scholar
- 5.A. Weissberger, E. Proskauer, J. Riddick, and E. Toops, Organic Solvents. Physical Properties and Methods of Purification (Wiley, New York, 1955; Inostrannaya Literatura, Moscow, 1958).Google Scholar
- 6.B. Keil, Laboratorni technika organické chemie (Nakladatelstvi Ceskoslovenské Academie véd, Praha, 1963; Mir, Moscow, 1966).Google Scholar
- 7.A. I. Kuzaev, in Heterophase Network Polymers Synthesis, Characterization and Properties (Taylor and Francis, London, 2002), p. 27.Google Scholar
- 8.A. I. Kuzaev, Vysokomol. Soedin., Ser. A 22, 1146 (1980).Google Scholar
- 10.S. G. Entelis, V. V. Evreinov, and A. I. Kuzaev, Reactive Oligomers (Khimiya, Moscow, 1985) [in Russian].Google Scholar