Abstract
Three different random block copolymers composed of vinyl phenol (VPh) and styrene (St) were prepared through living radical polymerization mediated by 4-methoxy-2,2,6,6-tetramethylpiperidine-1-oxyl: poly(vinyl phenol)-block-poly(VPh-ran-St) (PVPh-b-RC1), poly(VPh-ran-St)-block-polystyrene (RC2-b-PSt), and poly(VPh-ran-St)-block-poly(VPh-ran-St) with different unit ratios (RC2-b-RC3). All the copolymers formed micelles in the presence of 1,4-butanediamine (BDA) in 1,4-dioxane, a nonselective solvent. The effects of the unit ratios of the random copolymer blocks and the location in the diblock copolymers on the size of micelles, relative scattering intensity, and critical micelle concentration were investigated. Light scattering studies demonstrated that PVPh-b-RC1 formed smaller micelles than PVPh-b-PSt, while there was a slight difference in the relative intensity. On the other hand, RC2-b-PSt and PVPh-b-PSt produced the micelles with similar sizes, RC2-b-PSt, however, needed more BDA to form micelles than PVPh-b-PSt. RC2-b-RC3 formed the largest micelles among the three random block copolymers, owing to the longest corona blocks. The relative intensity of the RC2-b-RC3 micelles was between those of PVPh-b-RC1 and RC2-b-PSt, suggesting that the RC2-b-RC3 formed the micelles through weaker aggregation force than PVPh-b-RC1, but stronger than RC2-b-PSt.
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P. Munk, A. Qin, M. Tian, C. Ramireddy, S. E. Webber, Z. Tuzar, and K. Prochazka, J. Appl. Polym. Sci., Apll. Polym. Symp., 52, 45 (1993).
M. Nakano, H. Matsuoka, H. Yamaoka, A. Poppe, and D. Richter, Macromolecules, 32, 697 (1999).
J. B. McClain, D. E. Betts, D. A. Canelas, E. T. Samulski, J. M. DeSimone, J. D. Londono, H. D. Cochran, G. D. Wignall, D. C. Martino, and R. Triolo, Science, 274, 2049 (1996).
L. Zhang and A. Eisenberg, Science, 268, 1728 (1995).
Halperin, Macromolecules, 24, 1418 (1991).
Y. Morishima, S. Nomura, T. Ikeda, M. Seki, and M. Kamachi, Macromolecules, 28, 2874 (1995).
T. Fukuda, T. Terauchi, A. Goto, Y. Tsujii, and T. Miyamoto, Macromolecules, 29, 3035 (1996).
E. Yoshida and Y. Takiguchi, Polym. J., 31, 429 (1999).
E. Yoshida and S. Kunugi, J. Polym. Sci., Polym. Chem. Ed., 40, 3063 (2002).
E. Yoshida and S. Kunugi, Macromolecules, 35, 6665 (2002).
T. Miyazawa, T. Endo, S. Shiihashi, and M. Okawara, J. Org. Chem., 50, 1332 (1985).
D. Morrison, E. F. Grabowski, and C. A. Herb, Langmuir, 1, 496 (1985).
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Yoshida, E. Micellization of Random Block Copolymers in a Nonselective Solvent Using α,ω-Diamine. Polym J 35, 484–490 (2003). https://doi.org/10.1295/polymj.35.484
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DOI: https://doi.org/10.1295/polymj.35.484
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