Publication Type
Journal
Journal Name
Polymer
Publication Date
Page Numbers
4455 to 4460
Volume
53
Issue
20
Abstract
A self-complementary heteroditopic molecule composed of thymine and diamidopyridine end groups
and a flexible aliphatic interconnecting chain has been synthesized. The glassy dynamics of this
hydrogen-bonded supramolecule have been investigated by using dielectric and rheological measurements,
in combination with infra-red spectroscopy and solid-state 13C NMR experiments. Decoupling of
main dielectric relaxation from viscosity has been found in the vicinity of the glass transition and the
temperature dependence of viscosity appears to be stronger than that of dielectric relaxation. The
unusual dynamic decoupling phenomenon is ascribed to the chemical/dynamic heterogeneity and
formation of hydrogen bonds in the supramolecules.
