Correlated Dynamics and Light Scattering in Microemulsions

Boon, Jean‐Pierre; Yip, Sidney

doi:10.1080/713820988

Cited by 8 publications

(3 citation statements)

References 4 publications

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“…The short-time and the long-time features of correlation function could be predicted. The wave vector dependence of the effective diffusion coefficient from the first cumulant was examined theoretically by Wills (1981) and Boon and Yip (1982). Lakkerkerker and Dhont (1984) discussed and compared two different ways of calculating the self-diffusion coefficient of the interacting Brownian particles as a function of concentration.…”

Section: Dynamic Light Scatteringmentioning

confidence: 99%

Static and dynamic light scattering by aerosols in a controlled environment

Singh

2009

Light Scattering Reviews 4

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Section: Dynamic Light Scatteringmentioning

confidence: 99%

Static and dynamic light scattering by aerosols in a controlled environment

Singh

2009

Light Scattering Reviews 4

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“…A number of research has been carried out on the motion of droplets inside an ME. [14][15][16][17][18] One of the interesting topics is to study the motion of droplets at the mixture of an ME with a polymer. [19][20][21][22] Usually several Brownian motions can be found in the mixture of an ME with a polymer.…”

Section: Introductionmentioning

confidence: 99%

Length scale of polyisopirene and dynamic light scattering and structure of sodium-2-diethylhexyl sulfosuccinate/water/decane

Sharifi

Delgosha

2015

Physics and Chemistry of Liquids

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The mixture of polyisopirene (PI) and sodium-2-diethylhexyl sulfosuccinate /decane/ water microemulsion (ME) at AOT to water molar ratio (X = 30) and droplet mass fraction (m f,drop = 0.08) was studied with dynamic light scattering and small-angle Xray scattering (SAXS). The light scattering was used to obtain the diffusion coefficient of Brownian motion of the nano-droplets at different polymer concentrations and molecular weights (1000 and 4700) in the ME. The dynamics of the nano-droplets decreased with the increase of molecular weight (from 1000 to 4700) and concentration (from 0.01 to 0.09) of PI. The study of the structure by SAXS showed that with increase of PI (MW = 1000) mass fraction from 0.01 to 0.09 at ME, the size of the droplets changes from 4.5 to 4.3 nm and with increase of PI (MW = 4700) concentration at ME, the size of droplets changes from 4.8 to 4.4 nm. The size ratio of droplets to polymer decreased with increase of concentration and molecular weight of polymer and also the interaction between the droplets increased with increase of polymer concentration.

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“…Quasielastic light scattering is a very useful method to characterize the structure of microemulsion, polymers, and nanoparticles in solution [1][2][3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Quasielastic Light Scattering and Structure of Nanodroplets Mixed with Polycaprolactone

Sharifi

2014

Journal of Spectroscopy

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The interaction of polycaprolactone (PCL) with droplets of a microemulsion is studied with quasielastic light scattering and small angle X-ray scattering At constant droplet size we vary the PCL concentration and there is clear evidence for an increasing attractive interaction of the droplets from structural investigations with small-angle X-ray scattering (SAXS). The collective diffusion coefficient (Dc) of the droplets is monitored with quasielastic light scattering (QELS). We mainly focus on the variation of the dynamic behavior as a function of the PCL concentration and length scale (M.W. = 5000 and 10000) in microemulsion. With increasing PCL concentration and length scale the dynamics of the system slow down. A hard sphere model with depletion potential can fit well the SAXS experiment of microemulsion mixed with PCL. The results show with increase of PCL on microemulsion the size of droplets is constant at 83Å but the size ratio of polymer to droplets is changing.

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Correlated Dynamics and Light Scattering in Microemulsions

Cited by 8 publications

References 4 publications

Static and dynamic light scattering by aerosols in a controlled environment

Static and dynamic light scattering by aerosols in a controlled environment

Length scale of polyisopirene and dynamic light scattering and structure of sodium-2-diethylhexyl sulfosuccinate/water/decane

Quasielastic Light Scattering and Structure of Nanodroplets Mixed with Polycaprolactone

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