Proton magnetic resonance imaging in hydrogels: volume phase transition inpoly(N-isopropylacrylamide)

Authors
Ganapathy, S Rajamohanan, PR Badiger, MV Mandhare, AB Mashelkar, RA
Citation
S. Ganapathy et al., Proton magnetic resonance imaging in hydrogels: volume phase transition inpoly(N-isopropylacrylamide), POLYMER, 41(12), 2000, pp. 4543-4547
Citations number
35
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
POLYMER
ISSN journal
00323861 → ACNP
Volume
41
Issue
12
Year of publication
2000
Pages
4543 - 4547
Database
ISI
SICI code
0032-3861(200006)41:12<4543:PMRIIH>2.0.ZU;2-1
Abstract
Proton Magnetic Resonance (PMR) imaging has been used to study the volume-p hase-transition in a thermoreversible gel. This is demonstrated in the LCST polymer poly(N-isopropylacrylamide), swollen in water. The volume-phase-tr ansition is conveniently monitored through one-dimensional proton images. P MR images, derived from relaxation and diffusion weighted planar spin-echo experiments, provide insights on the hydration state of water and the motio nal state of polymer, in the fully swollen and collapsed states of the gel. (C) 2000 Elsevier Science Ltd. All rights reserved.