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Details van artikel 17 van 43 gevonden artikelen
| Titel: |
Intermolecular and intramolecular contributions to the relaxation process in sorbitol and maltitol |
| Auteur: |
SIXOU, B. FAIVRE, A. DAVID, L. VIGIER, G. |
| Verschenen in: |
Molecular physics |
| Paginering: | Jaargang 99 (2001) nr. 22 pagina's 1845-1850 |
| Jaar: |
2001-11-20 |
| Inhoud: |
Molecular mobility in sorbitol and maltitol is studied with spectroscopic techniques and molecular dynamics simulations in order to evaluate the relative contributions of the intermolecular and intramolecular interactions involved in the relaxation processes. The results of the molecular dynamics simulations performed on the polyols in the bulk or in vacuum compares well with the results of the analysis of the relaxation diagrams in the framework of the Perez et al. model. They both imply that the difference in the relative contributions of the intermolecular and intramolecular interactions associated with the different chemical architectures of the two polyols must be taken into account. The intermolecular interactions cannot be neglected and they are stronger in sorbitol than in maltitol in relation with the linear structure of this polyol. The intramolecular barrier, higher in the maltitol molecule with a more complex structure, could be at the origin of the higher junction temperature between the α and β relaxation processes. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 17 van 43 gevonden artikelen
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