TY - JOUR
T1 - Deswelling characteristics of poly(N‐isopropylacrylamide) hydrogel
AU - Park, Tae Gwan
AU - Hoffman, Allan S.
PY - 1994/4/4
Y1 - 1994/4/4
N2 - Poly(N‐isopropylacrylamide) gels exhibit a lower critical solution temperature (LCST) behavior in aqueous solution. At temperatures below the LCST, the gel is more hydrated than at temperatures above the LCST. At the LCST, the volume change is sharp. It is shown here that the water content of the gel above the LCST depends upon previous states of the gel (e.g., dry or wet), the heating rate, and the gel thickness. Deswelling kinetics are also affected by the gel thickness. Caffeine release experiments indicate that microscopic water pockets are formed within the matrix during the rapid gel collapse procedure. © 1994 John Wiley & Sons, Inc.
AB - Poly(N‐isopropylacrylamide) gels exhibit a lower critical solution temperature (LCST) behavior in aqueous solution. At temperatures below the LCST, the gel is more hydrated than at temperatures above the LCST. At the LCST, the volume change is sharp. It is shown here that the water content of the gel above the LCST depends upon previous states of the gel (e.g., dry or wet), the heating rate, and the gel thickness. Deswelling kinetics are also affected by the gel thickness. Caffeine release experiments indicate that microscopic water pockets are formed within the matrix during the rapid gel collapse procedure. © 1994 John Wiley & Sons, Inc.
UR - http://www.scopus.com/inward/record.url?scp=84985611202&partnerID=8YFLogxK
U2 - 10.1002/app.1994.070520110
DO - 10.1002/app.1994.070520110
M3 - Article
AN - SCOPUS:84985611202
SN - 0021-8995
VL - 52
SP - 85
EP - 89
JO - Journal of Applied Polymer Science
JF - Journal of Applied Polymer Science
IS - 1
ER -