Abstract
Cationic block and/or graft copolymerization of 1,3-dioxolane (DOL) onto poly(p-methoxystyrene) [poly(p-MOS)] was investigated. Block copolymer were obtained by the polymerization of DOL initiated with living poly(p-MOS) prepared with an iodine initiator in carbon tetrachloride at 0∼−15°C. The successful block copolymerization required the presence of a neutral salt with a less nucleophilic counterion (ClO4⊖, BF4⊖, or SbF6⊖), which activates the living end via counterion exchange; in the absence of the salt, the living poly(p-MOS) could not polymerize DOL. The blocking reactions were accompanied by the formation of graft copolymers due to the attack of the propagating poly(DOL) chains onto the aromatic rings of poly(p-MOS). The ClO4⊖ anion functioned as the best counterion, leading to higher yields of the block copolymer with less graft copolymers. p-MOS–DOL graft copolymers were also prepared by the DOL polymerization with an acetyl salt, (AcX; X=ClO4⊖, BF4⊖, SbF6⊖), in the presence of a dead poly(p-MOS).
Similar content being viewed by others
Log in or create a free account to read this content
Gain free access to this article, as well as selected content from this journal and more on nature.com
or
References
T. Higashimura and O. Kishiro, Polym. J., 9, 87 (1977).
T. Higashimura, M. Mitsuhashi, and M. Sawamoto, Macromolecules, 12, 178 (1979).
Y. Yamashita, M. Okada, and M. Hirota, Angew. Makromol. Chem., 9, 136 (1969).
P. K. Bossaer, E. J. Goethals, P. J. Hackett, and D. C. Pepper, Eur. Polym. J., 13, 489 (1977).
C. S. Marvel and G. L. Schertz, J. Am. Chem. Soc., 65, 2056 (1943).
R. F. Nystram and W. G. Brown, J. Am. Chem. Soc., 69, 1197 (1947).
H. C. Haas, P. M. Kamath, and N. W. Schular, J. Polym. Sci., 24, 85 (1957).
T. Masuda, Y. Miki, and T. Higashimura, Polym. J., 3, 724 (1972).
F. R. Jones and P. H. Plesch, Chem. Commun., 1230 (1969).
R. E. Prud’homme, J. Polym. Sci., Polym. Phys. Ed., 15, 1619 (1977).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Ikeda, I., Suzuki, K., Maekawa, T. et al. Cationic Block and Graft Polymerization of 1,3-Dioxolane onto Living Poly(p-methoxystyrene). Polym J 12, 423–429 (1980). https://doi.org/10.1295/polymj.12.423
Issue date:
DOI: https://doi.org/10.1295/polymj.12.423
