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{Miller:2017:10.1021/acs.cgd.6b01841,
author = {Miller, RM and Ces, O and Brooks, NJ and Robles, ESJ and Cabral, JT},
doi = {10.1021/acs.cgd.6b01841},
journal = {CRYSTAL GROWTH & DESIGN},
pages = {2428--2437},
title = {Crystallization of Sodium Dodecyl Sulfate-Water Micellar Solutions under Linear Cooling},
url = {http://dx.doi.org/10.1021/acs.cgd.6b01841},
volume = {17},
year = {2017}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - The crystallization kinetics of sodium dodecyl sulfate (SDS)-water micellar solutions, under linear cooling conditions, were experimentally investigated using optical microscopy, differential scanning calorimetry, and infrared spectroscopy. Cooling rates were systematically varied, from 0.1 to 50 °C min–1, encompassing environmental to near-“isothermal” temperature changes, between 22 and −5 °C, for a reference concentration of 20% SDS-H2O. The cooling rate was shown to determine the dominant crystal morphologies, with platelets and needles predominating at the lowest and highest rates, respectively. The results were rationalized in terms of isothermal crystallization data and the time–temperature cooling profile. Rates 0.1, 5.0, and 10 °C min–1 yield morphologies and kinetics analogous to those of isothermal quenches at the corresponding crystallization temperature window. Nontrivial deviations were observed for intermediate rates (0.5, 1.0 °C min–1), due to commensurate changes in temperature and crystallization mechanism, accompanied by solute depletion. The polythermal metastable zone width was estimated, and the non-isothermal nucleation described by the Nývlt equation, while the Avrami and Kissinger models described overall crystallization kinetics. Our measurements quantify the impact of temperature gradients in the crystallization of ubiquitous SDS micellar solutions, for a range of practically relevant profiles incurred during manufacturing and storage.
AU - Miller,RM
AU - Ces,O
AU - Brooks,NJ
AU - Robles,ESJ
AU - Cabral,JT
DO - 10.1021/acs.cgd.6b01841
EP - 2437
PY - 2017///
SN - 1528-7483
SP - 2428
TI - Crystallization of Sodium Dodecyl Sulfate-Water Micellar Solutions under Linear Cooling
T2 - CRYSTAL GROWTH & DESIGN
UR - http://dx.doi.org/10.1021/acs.cgd.6b01841
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000400802500016&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - http://hdl.handle.net/10044/1/48786
VL - 17
ER -