✦ LIBER ✦

Swelling behavior of submicron gel particles

✍ Scribed by K. S. Oh; Y. C. Bae

Book ID: 101254915
Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 164 KB
Volume: 69
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(19980705)69:1<109::aid-app12>3.0.co;2-v

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✦ Synopsis

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.

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