Gel-to-sol and sol-to-gel transitions utilizing the interaction of α-cyclodextrin with dodecyl side chains attached to a poly(acrylic acid) backbone

被引:48
作者
Tomatsu, I [1 ]
Hashidzume, A [1 ]
Harada, A [1 ]
机构
[1] Osaka Univ, Grad Sch Sci, Dept Macromol Sci, Osaka 5600043, Japan
关键词
cyclodextrins; gel-to-sol and sol-to-gel transitions; inclusion chemistry; molecular recognition; poly(acrylic acid);
D O I
10.1002/marc.200500044
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
By utilizing the interaction of alpha-cyclodextrin (alpha-CD) with dodecyl side chains in polymers of x mol-% dodecyl-modified poly(acrylic acid) (p(AA/C-12(x))), systems that undergo sol-to-gel transitions were successfully constructed. Rheological experiments indicated that addition of alpha-CD to the hydrogel of p(AA/C-12(5)) caused a drastic decrease in the viscosity, while addition of oligo(alpha-CD) to the solution of p(AA/C-12(2)) led to a remarkable increase in the viscosity.
引用
收藏
页码:825 / 829
页数:5
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