Imperial College London

Dr Nick Brooks

Faculty of Natural SciencesDepartment of Chemistry

Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 7594 2677n.brooks Website

 
 
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Location

 

207JMolecular Sciences Research HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Hamid:2014:www.scientific.net/AMR.895.111,
author = {Hamid, HAA and Hashim, R and Seddon, JM and Brooks, NJ},
doi = {www.scientific.net/AMR.895.111},
journal = {Advanced Materials Research},
pages = {111--115},
title = {Lyotropic phase behaviour and structural parameters of monosaccharide and disaccharide guerbet branched-chain β-D-glycosides},
url = {http://dx.doi.org/10.4028/www.scientific.net/AMR.895.111},
volume = {895},
year = {2014}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - The phase behaviour and self-assembly structural parameters of a pair of monosaccharide and disaccharide Guerbet branched-chain β-D-glycosides, namely 2-octyldodecyl β-D-glucoside (β-Glc- C12C8) and 2-octyldodecyl β-D-maltoside (β-Mal- C12C8), have been studied by means of optical polarizing microscopy (OPM) and small-angle X-ray diffraction at room temperature (25°C). These compounds are sugar-based glycolipid surfactants having a total chain length of C20, and differ based on the increasing number of hydroxyl groups of the sugar headgroup (glucose and maltose). The repeat spacings obtained by X-ray diffraction as a function of water content have been used to determine the limiting hydration for the two glycosides. At room temperature, β-Glc-12C8 and β- Mal- C12C8 have limiting hydrations of 22 wt% and 25 wt%, corresponding to 8 - 10 and 10 - 12 water molecules per glycoside, respectively. At all water contents between 5 and 29 wt % water, these compounds adopt inverse hexagonal (HII) or fluid lamellar (Lα) phases. The structural parameters of these phases have been determined from the diffraction data, from the X-ray repeat spacings, densities and concentration of the glycosides. © (2014) Trans Tech Publications, Switzerland.
AU - Hamid,HAA
AU - Hashim,R
AU - Seddon,JM
AU - Brooks,NJ
DO - www.scientific.net/AMR.895.111
EP - 115
PY - 2014///
SN - 1022-6680
SP - 111
TI - Lyotropic phase behaviour and structural parameters of monosaccharide and disaccharide guerbet branched-chain β-D-glycosides
T2 - Advanced Materials Research
UR - http://dx.doi.org/10.4028/www.scientific.net/AMR.895.111
VL - 895
ER -