Glassy crystalline state and water sorption of alkyl maltosides
(2004) In Langmuir 20(8). p.3056-3061- Abstract
- A differential scanning calorimetric and sorption calorimetric study of two alkyl maltosides, C(8)G(2) and C(10)G(2), was performed. In the dry state, C(8)G(2) and C(10)G(2) do not form solid crystals but undergo a glass transition upon temperature change. The glass is partly ordered and has the same lamellar structure as the liquid crystals formed by the two maltosides. To reflect the presence of the glass transition and the structure, the terms "glassy crystals" and "glassy liquid crystals" can be used. A mechanism of the relaxation of the glassy crystals based on the results of small-angle X-ray scattering experiments is proposed. Experiments on water sorption showed that the glassy crystals turn into lyotropic liquid crystals upon... (More)
- A differential scanning calorimetric and sorption calorimetric study of two alkyl maltosides, C(8)G(2) and C(10)G(2), was performed. In the dry state, C(8)G(2) and C(10)G(2) do not form solid crystals but undergo a glass transition upon temperature change. The glass is partly ordered and has the same lamellar structure as the liquid crystals formed by the two maltosides. To reflect the presence of the glass transition and the structure, the terms "glassy crystals" and "glassy liquid crystals" can be used. A mechanism of the relaxation of the glassy crystals based on the results of small-angle X-ray scattering experiments is proposed. Experiments on water sorption showed that the glassy crystals turn into lyotropic liquid crystals upon sorption of water at constant temperature. This isothermal glass transition can be characterized by water content and change of partial molar enthalpy of mixing of water. A method to calculate the phase diagram liquid crystals-glassy liquid crystals is proposed. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/153819
- author
- Kocherbitov, Vitaly LU and Söderman, Olle LU
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Langmuir
- volume
- 20
- issue
- 8
- pages
- 3056 - 3061
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- pmid:15875829
- wos:000220750300012
- scopus:2342441675
- ISSN
- 0743-7463
- DOI
- 10.1021/la035553c
- language
- English
- LU publication?
- yes
- id
- b8294c20-8aa2-4393-9aef-863e5be6594a (old id 153819)
- date added to LUP
- 2016-04-01 11:46:25
- date last changed
- 2022-04-20 21:36:07
@article{b8294c20-8aa2-4393-9aef-863e5be6594a,
abstract = {{A differential scanning calorimetric and sorption calorimetric study of two alkyl maltosides, C(8)G(2) and C(10)G(2), was performed. In the dry state, C(8)G(2) and C(10)G(2) do not form solid crystals but undergo a glass transition upon temperature change. The glass is partly ordered and has the same lamellar structure as the liquid crystals formed by the two maltosides. To reflect the presence of the glass transition and the structure, the terms "glassy crystals" and "glassy liquid crystals" can be used. A mechanism of the relaxation of the glassy crystals based on the results of small-angle X-ray scattering experiments is proposed. Experiments on water sorption showed that the glassy crystals turn into lyotropic liquid crystals upon sorption of water at constant temperature. This isothermal glass transition can be characterized by water content and change of partial molar enthalpy of mixing of water. A method to calculate the phase diagram liquid crystals-glassy liquid crystals is proposed.}},
author = {{Kocherbitov, Vitaly and Söderman, Olle}},
issn = {{0743-7463}},
language = {{eng}},
number = {{8}},
pages = {{3056--3061}},
publisher = {{The American Chemical Society (ACS)}},
series = {{Langmuir}},
title = {{Glassy crystalline state and water sorption of alkyl maltosides}},
url = {{http://dx.doi.org/10.1021/la035553c}},
doi = {{10.1021/la035553c}},
volume = {{20}},
year = {{2004}},
}