MULTIPLE VOLUME PHASE-TRANSITION OF NONIONIC THERMOSENSITIVE GEL

被引：25

作者：

KAWASAKI, H ^{[1
]}

NAKAMURA, T ^{[1
]}

MIYAMOTO, K ^{[1
]}

TOKITA, M ^{[1
]}

KOMAI, T ^{[1
]}

机构：

[1] MIE UNIV,FAC ENGN,DEPT CHEM MAT,TSU,MIE 514,JAPAN

来源：

JOURNAL OF CHEMICAL PHYSICS | 1995年 / 103卷 / 14期

关键词：

D O I：

10.1063/1.470451

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The volume phase transition is studied in the ternary system of the nonionic poly (N-normalpropylacrylamide) gel, water, and various alcohol. The gel shows a reentrant volume phase transition in all mixed solvent systems studied here. It is found that the phase transition is multiple in the mixed solvent systems of water-1-propanol and water-2-propanol. These results are discussed by the mean field theory in which the effects of the chain stiffening due to the adsorption of the solvent molecules are taken into account. These results strongly suggest that the adsorption and/or the desorption of the solvent molecules promote the multiple phase transition of the nonionic poly (N-normalpropylacrylamide) gel. (C) 1995 American Institute of Physics.

引用

页码：6241 / 6247

页数：7

共 24 条

[1] REENTRANT PHASE-TRANSITION OF N-ISOPROPYLACRYLAMIDE GELS IN MIXED-SOLVENTS [J].