July 2024
Intermediate to advanced
280 pages
12h 52m
English
Content preview from The Essential Handbook of Polymer Terms and Attributes
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224 Temperature-Sensitive Hydrogel
Temperature-sensitive hydrogels, which are part of the family of stimulus-sensitive hydrogels, consist of water-filled polymer networks (i.e. gels) that display a temperature-dependent degree of swelling. They can display either a positive temperature response, meaning that the gel material swells with increasing temperature, or a negative temperature response, meaning that the gel material shrinks with increasing temperature.
An intensively investigated temperature-sensitive polymer is poly(N-isopropyl acrylamide) (PNIPAAm).
The theory of temperature-sensitive polymers (similarly, microgels) begins in the 1940s with work from Flory and Huggins, who both independently produced ...
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