Evanescent-Wave Cavity Ring-Down Investigation of Polymer/Solvent Interactions

2005 ◽  
Vol 109 (15) ◽  
pp. 7435-7442 ◽  
Author(s):  
Theresa E. Hannon ◽  
Soonwoo Chah ◽  
Richard N. Zare
Keyword(s):  
Evanescent Wave ◽  
Solvent Interactions ◽  
Polymer Solvent ◽  
Cavity Ring Down

scholarly journals Substrate-independent three-dimensional polymer nanosheets induced by solution casting

2021 ◽  
Author(s):  
Cheol Hun Park ◽  
Eun Min Go ◽  
Kyung Min Lee ◽  
Chang Soo Lee ◽  
Sang Kyu Kwak ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Simple Solution ◽  
Solution Casting ◽  
Solvent Interactions ◽  
Comb Copolymer ◽  
Substrate Independent ◽  
Polymer Solvent

Unprecedented substrate-independent polymeric 3D nanosheets were induced via simple solution casting using PEGBEM–POEM comb copolymer. A possible mechanism is the change in the polymer–solvent interactions on the surface.

Evanescent Wave Cavity Ring-Down Spectroscopy in a Thin-Layer Electrochemical Cell

2006 ◽  
Vol 78 (19) ◽  
pp. 6833-6839 ◽  
Author(s):  
Mikhail Mazurenka ◽  
Lucas Wilkins ◽  
Julie V. Macpherson ◽  
Patrick R. Unwin ◽  
Stuart R. Mackenzie
Keyword(s):  
Thin Layer ◽  
Evanescent Wave ◽  
Electrochemical Cell ◽  
Cavity Ring Down Spectroscopy ◽  
Cavity Ring Down

scholarly journals Evanescent Wave Cavity Ring-Down Spectroscopy as a Probe of Interfacial Adsorption: Interaction of Tris(2,2′-bipyridine)ruthenium(II) with Silica Surfaces and Polyelectrolyte Films

Langmuir ◽  
2009 ◽  
Vol 25 (1) ◽  
pp. 248-255 ◽  
Author(s):  
Hayley V. Powell ◽  
Mathias Schnippering ◽  
Mikhail Mazurenka ◽  
Julie V. Macpherson ◽  
Stuart R. Mackenzie ◽  
...  
Keyword(s):  
Evanescent Wave ◽  
Cavity Ring Down Spectroscopy ◽  
Silica Surfaces ◽  
Adsorption Interaction ◽  
Interfacial Adsorption ◽  
Cavity Ring Down

Surface and kinetic effects in gas chromatographic studies of polystyrene

1976 ◽  
Vol 54 (22) ◽  
pp. 3496-3507 ◽  
Author(s):  
Gregory J. Courval ◽  
Derek G. Gray
Keyword(s):  
Sample Size ◽  
Flow Rate ◽  
Retention Volume ◽  
Rate Dependence ◽  
Retention Data ◽  
Scanning Electron Micrographs ◽  
Linear Absorption ◽  
Solvent Interactions ◽  
Non Linear ◽  
Polymer Solvent

Considerable variation in the measurement of polymer–solvent interactions using gc retention data may occur due to kinetic factors, surface excess concentrations of probe vapour, and non-linear partition isotherms. The kinetic factors, which appear as a flow rate dependence of the retention volume, are analysed in terms of a previously reported theoretical model for retention on polymeric stationary phases passing through the glass transition. The predicted linear extrapolations to zero flow rate are obtained for the retention of n-tetradecane on polystyrene. The variation of this flow rate dependence with temperature and with the thickness of the stationary phase are also in qualitative agreement with the theory. A simplified model for the effect of loading on the retention diagram is presented. Non-linear absorption and bulk sorption isotherms result in a dependence of retention volume on sample size, necessitating an extrapolation of the measured retention volumes to zero peak height. The temperature variation of the flow rate dependence, the effect of loading, and the effect of sample size on retention volume are all further complicated by uneven distribution of polymer on support. From scanning electron micrographs of the beads it is evident that 'beading up' of the polystyrene on the glass surface may occur at low loadings, resulting in a non-uniform coating with large areas of the beads uncoated. It is concluded that in order to obtain reliable data on polymer–solvent interactions using gas chromatography, all of the above-mentioned factors must be considered.

Evanescent-wave cavity ring-down spectroscopy applied to electrochemical ion transfer at liquid–liquid interfaces

2012 ◽  
Vol 23 ◽  
pp. 1-4 ◽  
Author(s):  
M.V. Colqui Quiroga ◽  
T. Benavidez ◽  
L.M. Yudi ◽  
A.M. Baruzzi ◽  
M. Vogelsang ◽  
...  
Keyword(s):  
Evanescent Wave ◽  
Ion Transfer ◽  
Liquid Interfaces ◽  
Cavity Ring Down Spectroscopy ◽  
Cavity Ring Down
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