1,3:2,4-Di-p-methylbenzylidene sorbitol - CAS 54686-97-4
Category: Carbohydrates
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1.Confinement effects on the self-assembly of 1,3:2,Chen W1, Yang Y, Lee CH, Shen AQ. Langmuir. 2008 Sep 16;24(18):10432-6. doi: 10.1021/la801734x. Epub 2008 Aug 13.
1,3:2,4-di- p-methylbenzylidene sorbitol (MDBS) is a small organic molecule that is capable of inducing self-assembly in a wide variety of organic solvents and of forming organogels. In this paper, we present a novel approach to tune the network architectures of organogels by utilizing geometric confinement while varying the gelator concentration. Self-assembly of MDBS in propylene carbonate (PC) is investigated in a series of microchannels with widths varying from 20 to 80 mum and the gelator concentration varying from 2 to 7 wt %. We demonstrate by optical microscopy and scanning electron microscopy (SEM) that a transition from fibrillar structure to sheaflike spherulite structure occurs when (a) the channel width is increased for fixed gelator concentrations and (b) gelator concentration is increased for fixed channel widths. A phase diagram is built based on these observations. Polarized microscopy and transmission electron microscopy (TEM) images are also obtained for organogel under unconfined condition to display the spherulite structures viewed under different length scales.
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CAS 54686-97-4 1,3:2,4-Di-p-methylbenzylidene sorbitol

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