Responsive polymer networks and methods of their use

Details Responsive polymer networks and methods of their use Responsive polymer networks and methods of their use

C - Chemistry, Metallurgy

08

J

C08J 3/075 (2006.01) B29D 35/12 (2010.01) A41C 3/10 (2006.01) A42B 1/22 (2006.01) A42B 3/12 (2006.01) A43B 7/18 (2006.01) A43B 13/18 (2006.01) A61K 8/91 (2006.01) A61K 47/34 (2006.01) A61Q 7/00 (2006.01) A61Q 19/00 (2006.01) A63B 71/14 (2006.01) A63B 71/08 (2006.01)

Patent

CA 2230727

A polymer network exhibiting the property of reversible gelation in response to a change in an environmental stimulus is provided. The solvated network polymer, comprises about 0.01 to 20 wt.% of an associating component linked to about 0.01 to 20 wt.% of a solvophilic component. The solvated composition exhibits at least a five-fold increase in viscosity upon gelation. The gelation may be triggered by a change in an environmental stimulus, such as temperature, pH and ionic strength.

Réticulat polymérique présentant la propriété de gélification réversible en réponse à un changement intervenu dans un stimulus environnemental. Le réticulat polymérique solvaté comprend environ 0,01 à 20 % en poids d'un composant d'association et environ 0,01 à 20 % en poids d'un composant solvophile lié au composant d'association. La composition solvatée présente un accroissement d'au moins cinq fois sa viscosité lors de la gélification. Un changement intervenu dans un stimulus environnemental, tel que la température, le pH et la force ionique, peut déclencher la gélification.

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