TY - JOUR
T1 - Temperature Sensitive Gels as Size Selective Absorbants
AU - Freitas, Roberto F.S.
AU - Cussler, E. L.
PY - 1987/2/1
Y1 - 1987/2/1
N2 - We have used crosslinked polymer gels as extraction solvents for aqueous solutions. The gels swell to many times their dry weight by absorbing water and low molecular weight solutes, but excluding proteins and other high molecular weight solutes. The swollen gel is removed by filtration. When it is slightly warmed, it collapses, releasing most of the absorbed material. This sudden change of swelling with temperature occurs because the gel is near a critical point. After the gel is separated from the desorbed water by filtration, it is cooled and then can be reused.
AB - We have used crosslinked polymer gels as extraction solvents for aqueous solutions. The gels swell to many times their dry weight by absorbing water and low molecular weight solutes, but excluding proteins and other high molecular weight solutes. The swollen gel is removed by filtration. When it is slightly warmed, it collapses, releasing most of the absorbed material. This sudden change of swelling with temperature occurs because the gel is near a critical point. After the gel is separated from the desorbed water by filtration, it is cooled and then can be reused.
UR - https://www.scopus.com/pages/publications/0022014489
UR - https://www.scopus.com/inward/citedby.url?scp=0022014489&partnerID=8YFLogxK
U2 - 10.1080/01496398708068989
DO - 10.1080/01496398708068989
M3 - Article
AN - SCOPUS:0022014489
SN - 0149-6395
VL - 22
SP - 911
EP - 919
JO - Separation Science and Technology
JF - Separation Science and Technology
IS - 2-3
ER -