Abstract
Monohydroxy alcohols show a structural relaxation and at longer time scales a Debye-type dielectric peak. From spin-lattice relaxation experiments using different nuclear probes, an intermediate, slower-than-structural dynamics is identified for n-butanol. Based on these findings and on translational diffusion measurements, a model of self-restructuring, transient chains is proposed. The model is demonstrated to explain consistently the so-far puzzling observations made for this class of hydrogen-bonded glass forming liquids.
Original language | English |
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Article number | 258303 |
Journal | Physical Review Letters |
Volume | 105 |
Issue number | 25 |
DOIs | |
State | Published - Dec 16 2010 |
Externally published | Yes |