Multispectral Determination of Soap Film Thickness

Huibers, Paul D. T.; Shah, Dinesh O.

doi:10.1021/la960738n

Cited by 55 publications

(34 citation statements)

References 6 publications

(8 reference statements)

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“…The polymer films were deposited by spin coating and rubbed. The cell gap thickness d was set using teflon spacers and measured by means of the interference method [22] with the spectrometer. Electro-optical response of the LC cell placed between crossed polarizers was studied with HeNe laser (λ = 632.8 nm).…”

Section: Materials and Experimental Techniquesmentioning

confidence: 99%

Orientational transition in the cholesteric layer induced by electrically controlled ionic modification of the surface anchoring

et al. 2016

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A reorientation of cholesteric liquid crystal with a large helix pitch induced by the electrically controlled ionic modification of the surface anchoring has been studied. In initial state, the cholesteric helix is untwisted completely owing to the normal surface anchoring specified by the cations adsorbed at the substrates. As a result, the homeotropic director configuration is observed within the cell. Under the action of dc electric field, one of the substrates becomes free from the layer of surface active cations, therefore, setting the planar surface anchoring. The latter, in turn, leads to the formation of the hybrid chiral structure. The threshold value and dynamic parameters have been estimated for this process as well as the range of control voltages, which do not allow the electrohydrodynamic instabilities. The twisted hybrid director configuration observed in the experiment has been analyzed by means of the simulation of polarization change of light propagating through the cholesteric layer with asymmetric (planar and homeotropic) surface anchoring on the cell substrates.

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Section: Materials and Experimental Techniquesmentioning

confidence: 99%

Orientational transition in the cholesteric layer induced by electrically controlled ionic modification of the surface anchoring

et al. 2016

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“…Figure 2). This is not surprizing as microemulsions are thermodynamically stable transparent dispersions of two immiscible liquids, stabilized by an interfacial film of surfactants [20]. They have the ability to solubilize and disperse the maximum amount of the substrate and the metal complex, enhancing the possibility of hydrolysis by the metal centers.…”

Section: Methodsmentioning

confidence: 99%

Comparative Studies on Prussian Blue or Diaquatetraaminecobalt(III) Promoted Hydrolysis of 4-Nitrophenylphosphate in Microemulsions

Tafesse¹

2003

IJMS

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“…We have employed an in situ spectral refl ectance technique [ 24 ] (described in detail in the Supporting Information) to determine the stage at which crystallization occurs during Data for the 1:1 blends (Figure 2 b) show that an initial cocontinuous phase separated morphology is formed at 2.76 s that subsequently grows and coarsens (2.76-3.92 s). The phase separated morphology appears mostly fi xed at 3.92 s, earlier than the PEG-rich (7:3) blend.…”

Section: Doi: 101002/adma201302657mentioning

confidence: 99%

In Situ Studies of Phase Separation and Crystallization Directed by Marangoni Instabilities During Spin‐Coating

et al. 2013

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Results of a pioneering study are presented in which for the first time, crystallization, phase separation and Marangoni instabilities occurring during the spin-coating of polymer blends are directly visualized, in real-space and real-time. The results provide exciting new insights into the process of self-assembly, taking place during spin-coating, paving the way for the rational design of processing conditions, to allow desired morphologies to be obtained.

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Multispectral Determination of Soap Film Thickness

Cited by 55 publications

References 6 publications

Orientational transition in the cholesteric layer induced by electrically controlled ionic modification of the surface anchoring

Orientational transition in the cholesteric layer induced by electrically controlled ionic modification of the surface anchoring

Comparative Studies on Prussian Blue or Diaquatetraaminecobalt(III) Promoted Hydrolysis of 4-Nitrophenylphosphate in Microemulsions

In Situ Studies of Phase Separation and Crystallization Directed by Marangoni Instabilities During Spin‐Coating

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