Physical gelation by amides derived from trans-1, 2-diaminocyclohexane and their tetrasiloxane-based gelators
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Abstract
Four compounds were prepared from trans-1,2-diaminocyclohexane and were subsequently studied as gelators. These two compounds were chiral trans-(1R,2R)-1-(2-heptylundecanoylamino)-2-(10-undecenoylamino) cyclohexane and the corresponding racemate. The other two compounds were 1,1,3,3,5,5,7,7-octamethyltetrasiloxane-containing chiral and racemic compounds prepared by a hydrosilylation reaction. Their gelation abilities were evaluated on the basis of the minimum gel concentration, using seven solvents. The thermal stability and transparency of the gels were investigated by UV-vis spectroscopy using three-component mixed solvents of hexadecyl 2-ethylhexanoate, liquid paraffin, and decamethylcyclopentasiloxane (66 combinations). The gel-to-sol phase-transition temperatures were also studied. The viscoelastic behavior of the gels was studied by rheology measurements in the strain sweep mode. Aggregates consisting of three-dimensional networks were studied by transmission electron microscopy. Circular dichroism spectroscopy was performed to verify the existence of helical aggregates in the gel.
Article
POLYMER JOURNAL.49(5):439-447(2017)
Journal
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- POLYMER JOURNAL
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POLYMER JOURNAL 49 (5), 439-447, 2017-02-08
NATURE PUBLISHING GROUP
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Details 詳細情報について
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- CRID
- 1050002212667895936
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- NII Article ID
- 120007099606
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- NII Book ID
- AA00777013
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- ISSN
- 00323896
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- HANDLE
- 10091/00021968
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- NDL BIB ID
- 028137285
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- IRDB
- NDL
- CiNii Articles