Temperature-controlled transitions between glass, liquid and gel states in dense p-NIPA suspensions
Journal article published in 2010 by
Giovanni Romeo,
Hm Hans Wyss,
Alberto Fernandez-Nieves,
Hans M. Wyss 
,
Domenico Acierno,
Da David Weitz,
David A. Weitz
,
Domenico Acierno,
Da David Weitz,
David A. Weitz
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Abstract
(Figure Presented) The elastic modulus, G'p, of concentrated suspensions of thermoresponsive microgel particles highlights transitions between glassy, liquid-like, and gel-like behavior as the temperature is varied. Approaching the low critical solution temperature of the particles, Tc ≈ 29 °C, the material undergoes solid-to-liquid transitions even above random close packing and irrespective of particle concentration.