Abstract
Various molecular parameters characterizing the solution properties of poly(N-isopropylacrylamide) (in the range of molecular weight from 13.8 to 910×104) in water at 20°C and the temperature dependence of them in the range of 20°C to 30.6°C were determined with static and dynamic light scattering technique. (Modified) Flory’s fifth power law of excluded volume effect predicts well the temperature dependence of the chain dimension. It is shown that this polymer molecule behaves as a flexible coil from the molecular weight dependence of these parameters and the relation between the interpenetration function and expansion coefficients. The unique thermal behavior of this solution, temperature of phase change being independent of molecular weights and concentrations at least in the range of 1 wt%, should be mainly attributed to the hydrated structure.
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References
W. Burchard, “Chemistry and Technology of Water Soluble Polymers,” C. A. Finch, Ed., Plenum Press, New York, N.Y., 1983.
M. Heskins and J. E. Guillet, J. Macromol. Sci.-Chem., A2, 1441 (1968).
O. Chiantore, M. Guaita, and L. Trossarelli, Makromol. Chem., 180, 969 (1979).
S. Fujishige, Polym. J., 19, 297 (1987).
S. Fujishige, K. Kubota, and I. Ando, J. Phys. Chem., 93, 3311 (1989).
K. Kubota, S. Fujishige, and I. Ando, submitted to J. Phys. Chem.
W. Burchard, Ph.D thesis, Freiburg (1966).
M. Peuscher, Ph.D thesis, Freiburg (1982).
K. Kubota, H. Urabe, Y. Tominaga, and S. Fujime, Macromolecules, 17, 2096 (1984).
G. C. Berry, J. Chem. Phys., 44, 4550 (1966).
B. Chu, “Laser Light Scattering,” Academic Press, New York, N.Y., 1974.
D. E. Koppel, J. Chem. Phys., 57, 4814 (1972).
S. Itoh, Kobunshi Ronbunshu, 46, 427 (1989).
C. W. Pyun and M. Fixman, J. Chem. Phys., 41, 937 (1964).
S. Saeki, N. Kuwahara, M. Nakata, and M. Kaneko, Polymer, 17, 685 (1976).
“Polymer Handbook,” J. Brandrup and E. H. Immergut, Ed., Wiley Interscience, New York, N.Y., 1975.
K. Kubota, K. M. Abbey, and B. Chu, Macromolecules, 16, 137 (1983).
T. Kato, T. Katsuki, and A. Takahashi, Macromolecules, 17, 1726 (1984).
H. Oota, graduation thesis, Tokyo Institute of Technology, 1987.
H. Oota, T. Koumoto, I. Ando, S. Fujishige and K. Kubota, Polym. Prepr. Jpn., 37, 931 (1988).
S. Fujishige and S. Itoh, “Chromic Materials and Its Applications,” K. Ichimura, Ed., CMC, Tokyo, 1989.
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Kubota, K., Fujishige, S. & Ando, I. Solution Properties of Poly(N-isopropylacrylamide) in Water. Polym J 22, 15–20 (1990). https://doi.org/10.1295/polymj.22.15
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DOI: https://doi.org/10.1295/polymj.22.15
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