Self-Assembly, Thermotropic, and Lyotropic Phase Behavior of Guerbet Branched-Chain Maltosides
Five synthetic β-d-maltosides derived from Guerbet branched alcohols, whose total hydrocarbon chain length ranged from C8 to C24, were synthesized to a high anomeric purity, and their thermal properties, liquid-crystalline phases, and structures were characterized using differential scanning calorim...
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| Format: | Article |
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American Chemical Society
2018
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| author | Saari, Nur Asmak Nabila Mislan, Azwa Amanina Hashim, Rauzah Zahid, Noor Idayu Mat |
| author_facet | Saari, Nur Asmak Nabila Mislan, Azwa Amanina Hashim, Rauzah Zahid, Noor Idayu Mat |
| author_sort | Saari, Nur Asmak Nabila |
| collection | UM |
| description | Five synthetic β-d-maltosides derived from Guerbet branched alcohols, whose total hydrocarbon chain length ranged from C8 to C24, were synthesized to a high anomeric purity, and their thermal properties, liquid-crystalline phases, and structures were characterized using differential scanning calorimetry, optical polarizing microscopy, and small-angle X-ray scattering. Thermal investigations of all anhydrous Guerbet maltosides showed that they do not form solid crystals but undergo a glass transition upon temperature change in the range of 35-53 °C. The glassy crystalline structure turns into the liquid-crystalline structure upon heating or addition of water. In thermotropic studies, the lamellar phase formation is prominent in shorter-chain-length analogues, whereas the longer-chain compounds exhibit a more frustrated form of self-assembly in the formation of a metastable state, polymorphism, and inverse bicontinuous cubic structure (Ia3d). The excess water conditions show that the phase formation is dominated by the lamellar phase for the longer-chain compounds. Normal micellar solution was observed in the shortest-chain-length maltosides because of the enlargement of hydrated maltose headgroups. The self-assembly of both dry and fully hydrated Guerbet maltosides, which exhibited glass-forming abilities and showed surface activity and also the ability to act as membrane-stabilizing compounds, makes them ideal candidates for practical use in industry as well as biomedical research. |
| first_indexed | 2024-03-06T05:52:28Z |
| format | Article |
| id | um.eprints-20848 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:52:28Z |
| publishDate | 2018 |
| publisher | American Chemical Society |
| record_format | dspace |
| spelling | um.eprints-208482019-04-09T04:04:33Z http://eprints.um.edu.my/20848/ Self-Assembly, Thermotropic, and Lyotropic Phase Behavior of Guerbet Branched-Chain Maltosides Saari, Nur Asmak Nabila Mislan, Azwa Amanina Hashim, Rauzah Zahid, Noor Idayu Mat Q Science (General) QD Chemistry Five synthetic β-d-maltosides derived from Guerbet branched alcohols, whose total hydrocarbon chain length ranged from C8 to C24, were synthesized to a high anomeric purity, and their thermal properties, liquid-crystalline phases, and structures were characterized using differential scanning calorimetry, optical polarizing microscopy, and small-angle X-ray scattering. Thermal investigations of all anhydrous Guerbet maltosides showed that they do not form solid crystals but undergo a glass transition upon temperature change in the range of 35-53 °C. The glassy crystalline structure turns into the liquid-crystalline structure upon heating or addition of water. In thermotropic studies, the lamellar phase formation is prominent in shorter-chain-length analogues, whereas the longer-chain compounds exhibit a more frustrated form of self-assembly in the formation of a metastable state, polymorphism, and inverse bicontinuous cubic structure (Ia3d). The excess water conditions show that the phase formation is dominated by the lamellar phase for the longer-chain compounds. Normal micellar solution was observed in the shortest-chain-length maltosides because of the enlargement of hydrated maltose headgroups. The self-assembly of both dry and fully hydrated Guerbet maltosides, which exhibited glass-forming abilities and showed surface activity and also the ability to act as membrane-stabilizing compounds, makes them ideal candidates for practical use in industry as well as biomedical research. American Chemical Society 2018 Article PeerReviewed Saari, Nur Asmak Nabila and Mislan, Azwa Amanina and Hashim, Rauzah and Zahid, Noor Idayu Mat (2018) Self-Assembly, Thermotropic, and Lyotropic Phase Behavior of Guerbet Branched-Chain Maltosides. Langmuir, 34 (30). pp. 8962-8974. ISSN 0743-7463, DOI https://doi.org/10.1021/acs.langmuir.8b01899 <https://doi.org/10.1021/acs.langmuir.8b01899>. https://doi.org/10.1021/acs.langmuir.8b01899 doi:10.1021/acs.langmuir.8b01899 |
| spellingShingle | Q Science (General) QD Chemistry Saari, Nur Asmak Nabila Mislan, Azwa Amanina Hashim, Rauzah Zahid, Noor Idayu Mat Self-Assembly, Thermotropic, and Lyotropic Phase Behavior of Guerbet Branched-Chain Maltosides |
| title | Self-Assembly, Thermotropic, and Lyotropic Phase Behavior of Guerbet Branched-Chain Maltosides |
| title_full | Self-Assembly, Thermotropic, and Lyotropic Phase Behavior of Guerbet Branched-Chain Maltosides |
| title_fullStr | Self-Assembly, Thermotropic, and Lyotropic Phase Behavior of Guerbet Branched-Chain Maltosides |
| title_full_unstemmed | Self-Assembly, Thermotropic, and Lyotropic Phase Behavior of Guerbet Branched-Chain Maltosides |
| title_short | Self-Assembly, Thermotropic, and Lyotropic Phase Behavior of Guerbet Branched-Chain Maltosides |
| title_sort | self assembly thermotropic and lyotropic phase behavior of guerbet branched chain maltosides |
| topic | Q Science (General) QD Chemistry |
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