Molecular Recognition in a Thermoplastic Elastomer
摘要:
Selective incorporation of bisurea guests in thermoplastic elastomers with poly (tetrahydronfuran) soft blocks and bisurea containing hard blocks is observed when the distances between the urea groups of host and guest match. The incorporation leads to significant modulation of mechanical properties. With bisurea-functionalized dyes as guests, a strong difference in extractability by detergent solution was shown between dyes differing by just one methylene unit between urea groups. Upon elongation of elastomer films, strong differences in alignability of matching and nonmatching dyes were observed.
Molecular Recognition in a Thermoplastic Elastomer
作者:Rolf A. Koevoets、Ron M. Versteegen、Huub Kooijman、Anthony L. Spek、Rint P. Sijbesma、E. W. Meijer
DOI:10.1021/ja0451160
日期:2005.3.9
Selective incorporation of bisurea guests in thermoplastic elastomers with poly (tetrahydronfuran) soft blocks and bisurea containing hard blocks is observed when the distances between the urea groups of host and guest match. The incorporation leads to significant modulation of mechanical properties. With bisurea-functionalized dyes as guests, a strong difference in extractability by detergent solution was shown between dyes differing by just one methylene unit between urea groups. Upon elongation of elastomer films, strong differences in alignability of matching and nonmatching dyes were observed.