Abstract
Poly(4VP-co-NIPAM) microgels were prepared from 4-vinyl pyridine (4VP) and N-isopropyl acrylamide (NIPAM) with methylene-bis-acrylamide (MBAm) as a cross-linking agent using partially quarternized poly(4-vinyl pyridine) as emulsifier, which is a special emulsion polymerization method.The morphology and hydrodynamic diameter of the microgel particles were characterized by TEM and photon correlation spectroscopy (PCS). The dependence of pH and temperature of the copolymer microgel particles were investigated and the influence of the KCl concentration in the microgel dispersion was observed.Hydrodynamic diameters of the microgel particles were drastically increased below pH 5 and those of the microgel particles were depended on temperature and KCl concentration in the microgel dispersion. The dependence of pH and temperature on the microgel particles were affected by molar ratio of 4VP/NIPAM. The cross-linked copolymer microgels composed of 4VP/NIPAM ratio of 1/9, exhibited broad shrinking transition. The swelling behavior for the microgel dispersion was much sensitive to the KCl concentration in the microgel dispersion at elevated temperature.
Similar content being viewed by others
Article PDF
References
R. A. Siegel and B. A. Firestone, Macromolecules, 21, 3254 (1988).
T. Tanaka, I. Nishio, S. T. Sun, and S. Ueno-Nishio, Science, 218, 467 (1982).
G. Chen and A. S. Hoffman, Nature, 313, 49 (1995).
M. Shibayama, F. Ikkai, S. Ionamoto, S. Nomura, and C. C. Han, J. Chem. Phys., 105, 4358 (1996).
J. Zang and N. A. Peppas, Macromolecules, 33, 102 (2000).
R. H. Pelton, H. M. Pelton, A. Morphesis, and R. L. Rowell, Langmuir, 5, 816 (1989).
K. Makino, S. Yamamoto, K. Fujimoto, H. Kawaguchi, and H. Ohsima, Colloid Interface Sci., 168, 251 (1994).
H. G. Schild and D. A. Tirrell, J. Phys. Chem., 94, 4352 (1990).
Y. Hirokawa, T. Tanaka, and E. S. Matsuo, J. Chem. Phys., 81, 6379 (1984).
K. Kubota, S. Fujishige, and I. Ando, J. Phys. Chem., 94, 5154 (1990).
A. Loxley and B. Vincent, Colloid Polym. Sci., 275, 1108 (1997).
D. Duracher, F. Sauzedte, A. Elaissari, A. Perrin, and C. Pichot, Colloid Polym. Sci., 276, 219 (1998).
K. Kratz, T. Hellweg, and W. Eimer, Colloid Surf., A: Physicochem. Eng. Aspects, 170, 137 (2000).
F. Ikkai, M. Shibayama, and C. C. Han, Macromolecules, 31, 3275 (1998).
B. E. Rodriquez, M. S. Wolfee, and M. Fryd, Macromolecules, 27, 6642 (1994).
K. Makino, H. Agata, and H. Ohshima, J. Colloid Interface Sci., 230, 128 (2000).
T. Sawai, S. Yamazaki, Y. Ikariyama, and M. Aizawa, Macromolecules, 24, 2117 (1991).
S. Katayama, Y. Hirokawa, and T. Tanaka, Macromolecules, 17, 2641 (1984).
G. H. Ma and T. Fukutomi, J. Appl. Polym. Sci., 43, 1451 (1991).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kim, K., Vincent, B. pH and Temperature-sensitive Behaviors of Poly(4-vinyl pyridine-co-N-isopropyl acrylamide) Microgels. Polym J 37, 565–570 (2005). https://doi.org/10.1295/polymj.37.565
Published:
Issue Date:
DOI: https://doi.org/10.1295/polymj.37.565
Keywords
This article is cited by
-
Synthesis and properties of organic-inorganic hybrid P(NIPAM-co-AM-co-TMSPMA) microgels
Chinese Journal of Polymer Science (2011)
-
Synthesis of thermoresponsive polysilsesquioxane with methoxyethylamide group and crown ether
Polymer Journal (2010)
-
Thermoresponsive polysilsesquioxane grafted methacrylate polymer with a methoxyethylamide group
Polymer Journal (2010)
-
Dispersion polymerization of styrene employing lyophilic comonomer in the absence of stabilizer: Synthesis of impurity-free microspheres
Macromolecular Research (2009)
-
Molecular complex of lignosulfonic acid/poly(vinyl pyridine) via ionic interaction: characterization of chemical composition and application to material surface modifications
Journal of Wood Science (2008)