DOI: 10.1063/1.472561. Structural studies of an organic liquid through the glass transition

Structural studies of an organic liquid through the glass transition

10.1063/1.472561

Crossref journal-article

AIP Publishing

The Journal of Chemical Physics (317)

Abstract

We have performed neutron diffraction experiments on deuterated propylene glycol, an organic glass former, at temperatures ranging from where its dynamical response approaches that of normal liquids to below the point where relaxation times appear to diverge. Our studies extend over a very broad range of scattering wave vector (0.01&lt;Q&lt;30 Å−1). In contrast to models which predict clustering, we find no evidence in the liquid at any temperature for heterogeneities large on molecular scales. However, we do note subtle changes at shorter lengths. Using molecular dynamics simulations to model our results, we identify these changes with increasing density and increasing orientational order induced by hydrogen bonding in the liquid as it cools. Analysis of the orientational correlations between molecules reveals a strong dependence on their relative positions.

Bibliography

Leheny, R. L., Menon, N., Nagel, S. R., Long Price, D., Suzuya, K., & Thiyagarajan, P. (1996). Structural studies of an organic liquid through the glass transition. The Journal of Chemical Physics, 105(17), 7783â7794.

Authors 6

Robert L. Leheny (first)
Narayanan Menon (additional)
Sidney R. Nagel (additional)
David Long Price (additional)
Kentaro Suzuya (additional)
P. Thiyagarajan (additional)

References 33 Referenced 93

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Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 8:46 a.m.)
Deposited	2 years, 2 months ago (June 30, 2023, 10:36 a.m.)
Indexed	1 month ago (Aug. 2, 2025, 12:48 a.m.)
Issued	28 years, 10 months ago (Nov. 1, 1996)
Published	28 years, 10 months ago (Nov. 1, 1996)
Published Print	28 years, 10 months ago (Nov. 1, 1996)

Funders 0

None

BibTeX

@article{Leheny_1996, title={Structural studies of an organic liquid through the glass transition}, volume={105}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.472561}, DOI={10.1063/1.472561}, number={17}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Leheny, Robert L. and Menon, Narayanan and Nagel, Sidney R. and Long Price, David and Suzuya, Kentaro and Thiyagarajan, P.}, year={1996}, month=nov, pages={7783–7794} }

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