This work describes the synthesis of thermosensitive eight-point star-shaped polymers with a central core comprised of residual octa-ester-tert-butylcalix[8]arene with oligo-2-ethyl-2-oxazoline-block-2-isopropyl-2-oxazoline rays. It is found that, despite the presence of two blocks with substantially different temperatures of the coil – globule transition, block copolymers exhibit only one lower critical solution temperature (LCST), and the phase transition is observed at a temperature close to the transition temperature of the homopolymer with a lower LCST. For the first time it is found that, upon incubating for some time in an aqueous solution above the LCST, star polymers with temperature-sensitive polyoxazoline rays self-assemble to form nanofibers and structures with more complex morphology.
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References
Y. Sheng, C. H. Nung, and H. K. Tsao, J. Phys. Chem. B., 110, No. 24, 2164-2165 (2006).
G. Podoprygorina, J. Zhang, et al., Org. Lett., 5, No. 26, 5071-5074 (2003).
Y. Yang and T. M. Swager, Macromolecules, 39, No. 6, 2013-2015 (2006).
Y. Liu, L. Li, Z. Fan, et al., Nano Lett., 2, No. 4, 257-261 (2002).
H. Schlaad, C. Diehl, et al., Macromol. Rapid Commun., 31, No. 6, 511-525 (2010).
H. Aseyev, F. Tenhu, and M. Winnik, Adv. Polymer Sci., 1-134 (2011).
A. V. Tenkovtsev, A. E. Trofimov, and L. I. Scherbinskaya, Vysokomol. Soed., 54B, No. 3, 471-478 (2012).
S. Angot, K. S. Murthy, et al., Macromolecules, 33, No. 20, 7261-7274 (2000).
H. Kuodo, H. Inoue, and T. Nishikubo, Polymer J., 38, No. 3, 289-297 (2006).
C. Diehl, I. Dombowsky, et al., Macromol. Rapid Commun., 32, No. 6, 1753-1757 (2011).
The work was supported by the Russian Foundation for Basic Research. Grant No. 15-03-04934A.
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Translated: Proceedings of the III International Conference “Modern Trends in Chemistry and Technology of Polymeric Materials.” Translated from Khimicheskie Volokna, No. 4, pp. 69-74, July – August, 2015.
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Kurlykin, M.P., Bursian, A.E., Dudkina, M.M. et al. Synthesis of Star-Shaped Polymers Based on 2-ALKYL-2-Oxazoline with a Calix[8]Arene Central Core and the Study of Their Heat-Sensitive Properties. Fibre Chem 47, 291–297 (2015). https://doi.org/10.1007/s10692-016-9681-x
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DOI: https://doi.org/10.1007/s10692-016-9681-x