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Swelling behavior of submicron gel particles
Author(s) -
Oh K. S.,
Bae Y. C.
Publication year - 1998
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19980705)69:1<109::aid-app12>3.0.co;2-v
Subject(s) - swelling , materials science , volume (thermodynamics) , polymer chemistry , phase (matter) , solvent , phase transition , dynamic light scattering , mixing (physics) , chemical engineering , composite material , thermodynamics , chemistry , nanotechnology , nanoparticle , organic chemistry , physics , quantum mechanics , engineering
We prepared submicron Poly( N ‐isopropylacrylamide) gel particles. Their swelling behavior was investigated by a photon correlation spectroscopy (PCS) technique. The swelling behavior of submicron gel particles showed a continuous volume phase transition for various temperatures. We combined the extended Flory‐Huggins model for mixing solvent and network with a modified Flory‐Rehner theory for the elastic contribution. The proposed model agreed very well with swelling behaviors of both submicron gel particles and bulk gels. A continuous volume phase transition behavior of submicron gel particles was predicted successfully by the proposed model. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 69: 109–114, 1998