ISIS Neutron and Muon Source Data Journal
This is a page describing data taken during an experiment at the ISIS Neutron and Muon Source. Information about the ISIS Neutron and Muon Source can be found at https://www.isis.stfc.ac.uk.
Free volume calibration of Polystyrene (PS) bulk above and below its glass transition temperature
Abstract: Free volume theory has successfully predicted and described all of the liquid-to-solid transitions in hard sphere system. However, in polymer system, the exact molecular picture of what is "free volume" is still vague. The only experimental observation which may be related to the molecular packing density and possibly the "free volume" is the small change in the scattering function, S(q) (or the pair correlation function), at q-1 in the range of monomer dimension. We propose to use NIMROD and inverse molecular dynamics Simulation to study the free volume in polystyrene (PS) bulk above and below its glass transition temperature to reveal the existence of free volume. As a direct quantitative evidence of free volume in polymer bulk, it can give more insight into the nature of glass transition.
Principal Investigator: Dr He Cheng
Local Contact: Dr Tom Headen
Experimenter: Dr Taisen Zuo
Experimenter: Dr CHANGLI MA
DOI: 10.5286/ISIS.E.RB1810860
ISIS Experiment Number: RB1810860
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.92918381 | NIMROD | 23 June 2021 | Download |
Publisher: STFC ISIS Neutron and Muon Source
Data format: RAW/Nexus
Select the data format above to find
out more about it.
Data Citation
The recommended format for citing this dataset in a research
publication is as:
[author], [date], [title], [publisher],
[doi]
For Example:
Dr He Cheng et al; (2018): Free volume calibration of Polystyrene (PS) bulk above and below its glass transition temperature, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1810860
Data is released under the CC-BY-4.0 license.
