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Poly Thermo-sensitive gels

Thermo-Sensitive Gels Biodegradable Hydrogels from Enantiomeric Copolymers of Poly(lactide) and Poly(ethylene glycol)... [Pg.216]

Poly(vinyl methyl ether), PVME, is a thermo-sensitive polymer. The aqueous solution has a Lower Critical Solution Temperature (LCST) of 37 °C. Therefore, PVME is soluble in water below its LCST, but insoluble above its LCST. When an aqueous solution of PVME is irradiated with y-rays the solution becomes PVME hydrogel [18, 19]. The gel shows thermo-sensitivity similar to the solution, and swells below 37 °C and shrinks above this temperature. It is important to form a fine porous gel structure to obtain quick response gels. There are two methods for the purpose. One is a method using micro-phase separation by heating. The other is a method using micro-phase separation by blending of polymer solutions. [Pg.253]

Arndt KF, Schmidt T, Reichelt R (2001) Thermo-sensitive poly(methyl vinyl ether) micro-gel formed by high energy radiation. Polymer 42(16) 6785-6791... [Pg.126]

Y. Kaneko, R. Yoshida, K. Sakai, Y. Sakurai and T. Okano, Temperature-responsive shrinking kinetics of poly(Y-isopropylacrylamide) copolymer gels with hydrophilic and hydrophobic comonomers, J. Membr. Sci., 1995, 101, 13 Y.H. Lim, D. Kim and D.S. Lee, Drug releasing characteristics of thermo- and pH-sensitive interpenetrating polymer networks based on poly(W-isopropylacrylamide), J. Appl. Polym. Sci., 1997,... [Pg.212]

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