Thermosensitivity of aqueous solutions of poly(N,N-diethylacrylamide)

被引:319
作者
Idziak, I [1 ]
Avoce, D [1 ]
Lessard, D [1 ]
Gravel, D [1 ]
Zhu, XX [1 ]
机构
[1] Univ Montreal, Dept Chim, Montreal, PQ H3C 3J7, Canada
关键词
D O I
10.1021/ma981171f
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The thermally induced phase separation of aqueous poly (N,N-diethylacrylamide) (PDEA) was studied by means of differential scanning calorimetry and US'-visible spectrophotometry. The polymer was shown to have a well-defined lower critical solution temperature (LCST) of 33 degrees C. The addition of sodium chloride to the polymer solution resulted in a linear decrease of the LCST, Sodium dodecyl sulfate, at concentrations up to its critical micelle concentration, caused a gradual increase in the LCST of PDEA.
引用
收藏
页码:1260 / 1263
页数:4
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