Abstract
Cationic polymerization of tetrahydrofuran (THF) with 2-methyl-1,3-dioxoleum perchlorate proceeded as a living system without chain transfer and termination, and the initiation reaction was shown to be the bonding mechanism. Poly-THF with terminal dioxolenium perchlorate group was synthesized from poly(tetramethylene glycol) by stepwise reaction with adipoyl chloride, ethylene bromohydrin, and silver perchlorate. The quantitative formation of macromolecular dioxolenium salt was proved from the polymerization behavior of the THF. Polymerization of 3,3-bischloromethyloxetane by the initiator yielded block copolymer, and no chain-transfer reaction except the termination reaction was observed. Polymerization of 7-oxabicyclo[2.2.1]-heptane by the initiator yielded homopolymer as well as block copolymer, and a significant amount of chain transfer reaction was observed. Polymerizatian of dioxolane and tetraoxane by the initiator yielded little block copolymer, demonstrating the different mechanism of the initiation reaction in the case of cyclic formals.
Similar content being viewed by others
Article PDF
References
P. Drefuss and M. P. Drefuss, Adv. Polym. Sci., 4, 528 (1967).
T. Saegusa, S. Matsumoto, and Y. Hashimoto, Macromolecules, 3, 377 (1970).
J. L. Lambert and E. J. Goethals, Makromol. Chem., 133, 289 (1970).
G. Berger, M. Levy, and D. Vofsi, J. Polym. Sci., Part B, 4, 183 (1966).
Y. Yamashita, K. Nobutoki, Y. Nakamura, and M. Hirota, Macromolecules, 4, 548 (1971).
S. Aoki, T. Otsu, and M. Imoto, Kogyo Kagaku Zasshi (J. Chem. Soc. Japan, Ind. Chem. Sect.), 67, 971 (1964).
S. Aoki, T. Otsu, and M. Imoto, Kogyo Kagaku Zasshi, 67, 1953 (1964).
S. Aoki, T. Otsu, and M. Imoto, Kogyo Kagaku Zasshi, 67, 1955 (1964).
S. Aoki, T. Otsu, and M. Imoto, J. Polym. Sci., Part B, 2, 223 (1964).
Y. Yamashita, S. Kozawa, M. Hirota, K. Chiba, H. Matsui, A. Hirao, M. Kodama, and K. Ito, Makromol. Chem., 142, 171 (1971).
W. B. Sorenson and T. W. Campbell, “Preparative Methods of Polymer Chemistry,” John Wiley & Sons, Inc., New York, N. Y., 1961, p 252.
ref 8, p 256.
T. Saegusa, S. Matsumoto, and Y. Hashimoto, Macromolecules, 4, 1 (1971).
Y. Yamashita, S. Kozawa, K. Chiba, and M. Okada, Makromol. Chem., 135, 75 (1970).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Yamashita, Y., Chiba, K. Cationic Polymerization of Cyclic Ethers Initiated by Macromolecular Dioxolenium Perchlorate. Polym J 4, 200–204 (1973). https://doi.org/10.1295/polymj.4.200
Issue Date:
DOI: https://doi.org/10.1295/polymj.4.200
Keywords
This article is cited by
-
Photo-induced living cationic polymerization of tetrahydrofuran. III. Synthesis of poly(THF-co-3-MTHF)
Fibers and Polymers (2000)