DOI: 10.1063/1.453267. Volume-phase transitions of ionized <i>N</i>-isopropylacrylamide gels

Volume-phase transitions of ionized N-isopropylacrylamide gels

10.1063/1.453267

Crossref journal-article

AIP Publishing

The Journal of Chemical Physics (317)

Abstract

Equilibrium swelling curves of N-isopropylacrylamide (NIPA) gel and a series of its ionized counterparts were measured as a function of temperature. Nonionic NIPA gels underwent a sharp yet continuous volume change, whereas incorporation of a small amount of ionizable groups into the gel network drives the transition toward a discontinuous one. The critical ionic concentration and polymer network density at which the get undergoes a critical phase transition were determined. The results were analyzed using a mean field theory. Discrepancy between experimental data and theory is nontrivial, and may require the formulation of a more elaborate theory.

Bibliography

Hirotsu, S., Hirokawa, Y., & Tanaka, T. (1987). Volume-phase transitions of ionized N-isopropylacrylamide gels. The Journal of Chemical Physics, 87(2), 1392â1395.

Authors 3

Shunsuke Hirotsu (first)
Yoshitsugu Hirokawa (additional)
Toyoichi Tanaka (additional)

References 11 Referenced 782

10.1103/PhysRevLett.40.820 / Phys. Rev. Lett. (1978)
10.1103/PhysRevLett.45.1636 / Phys. Rev. Lett. (1980)
10.1021/ma00231a019 / Macromolecules (1982)
10.1016/0014-3057(81)90137-3 / Europ. Polym. J. (1981)
10.1063/1.447548 / J. Chem. Phys. (1984)
{'key': '2024021005034860400_r6', 'first-page': '5725', 'volume': '11', 'year': '1982', 'journal-title': 'J. Chem. Phys.'} / J. Chem. Phys. (1982)
10.1021/ma00142a032 / Macromolecules (1984)
10.1103/PhysRevLett.38.771 / Phys. Rev. Lett. (1977)
10.1103/PhysRevLett.43.217 / Phys. Rev. Lett. (1979)
{'key': '2024021005034860400_r10'}
{'key': '2024021005034860400_r11', 'first-page': '7', 'volume': '114', 'year': '1984', 'journal-title': 'Seni Kobunshi Zairyo Kenkyuusho Houkoku (Bulletin of Fiber and Polymer Research Laboratories, in Japanese)'} / Seni Kobunshi Zairyo Kenkyuusho Houkoku (Bulletin of Fiber and Polymer Research Laboratories, in Japanese) (1984)

Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 9:10 a.m.)
Deposited	1 year, 6 months ago (Feb. 10, 2024, 1:30 a.m.)
Indexed	3 weeks, 6 days ago (Aug. 6, 2025, 8 a.m.)
Issued	38 years, 1 month ago (July 15, 1987)
Published	38 years, 1 month ago (July 15, 1987)
Published Print	38 years, 1 month ago (July 15, 1987)

Funders 0

None

BibTeX

@article{Hirotsu_1987, title={Volume-phase transitions of ionized N-isopropylacrylamide gels}, volume={87}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.453267}, DOI={10.1063/1.453267}, number={2}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Hirotsu, Shunsuke and Hirokawa, Yoshitsugu and Tanaka, Toyoichi}, year={1987}, month=jul, pages={1392–1395} }

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