The macroscopic volume shrinkage and swelling of poly (N-isopropylacrylamide) (PNIPA) gel induced by the compositional change in the methanol-water mixed solvent is correlated to the change in the nanoscopic free volume size and numerical concentration formed in the PNIPA gels. The free volume size
Steady flow properties of a mixed solvent through a poly(N-isopropylacrylamide) gel
β Scribed by S. Nosaka; T. Ishida; K. Urayama; T. Takigawa
- Publisher
- Elsevier Science
- Year
- 2007
- Tongue
- English
- Weight
- 521 KB
- Volume
- 305
- Category
- Article
- ISSN
- 0376-7388
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To study the water-solution properties of a hydrophobically modified poly(N-isopropylacrylamide) (PNIPAM) which is temperature-sensitive, the copolymer of N-isopropylacrylamide (NIPAM) and octadecyl acrylate (ODA) was synthesized. The aggregation behavior of the copolymer was studied by surface tens
## Abstract The volume change, Ξ__V__~__h__~,~,~ accompanying the hydrophobic hydration associated with the volume phase transition in Poly(__N__βisopropylacrylamide) gels was measured by a simple method. The hydration accompanies a negative Ξ__V__~__h__β²~β2.5 cm^3^/mol. The __PβT__ phase diagram,