Dynamic light scattering measurements on semidilute solutions of polystyrene in ethyl acetate

2007 ◽  
pp. 68-71 ◽  
Author(s):  
P. Štěpánek ◽  
J. Jakeš ◽  
W. Brown
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Ethyl Acetate ◽  
Semidilute Solutions ◽  
Scattering Measurements

Dynamic light scattering measurements on the polystyrene/ethyl acetate system at semi-dilute concentrations as a function of temperature

1987 ◽  
Vol 18 (2) ◽  
pp. 175-182 ◽  
Author(s):  
Petr Štěpànek ◽  
Jaromír Jakeš ◽  
Česmír Koňák ◽  
Robert Johnsen ◽  
Wyn Brown
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Ethyl Acetate ◽  
Scattering Measurements ◽  
Ethyl Acetate System

Structure, Diffusivity and Linear Rheology of Sodium Ether Dodecylsulfate in Aqueous Solutions – (I)

2001 ◽  
Vol 215 (4) ◽  
Author(s):  
S.F. Clancy ◽  
H.H. Paradies
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Aqueous Solutions ◽  
Semidilute Solutions ◽  
Scattering Measurements

Static and dynamic light scattering measurements have been performed on dilute and semidilute solutions of sodium ether dodecylsulfate (sodium laurylethersulfate, RO(CH

scholarly journals Sulfonitric Treatment of Multiwalled Carbon Nanotubes and Their Dispersibility in Water

Materials ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2442 ◽  
Author(s):  
Hui Liu ◽  
Jianfeng Wang ◽  
Jiachen Wang ◽  
Suping Cui
Keyword(s):  
Carbon Nanotubes ◽  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Multiwalled Carbon Nanotubes ◽  
Photoelectron Spectroscopy ◽  
Oxidation Degree ◽  
Multiwalled Carbon ◽  
X Ray ◽  
Scattering Measurements ◽  
Ft Ir

In this study, Multiwalled carbon nanotubes (MWCNTs) were oxidized by a mixture of sulfuric acid and nitric acid (V:V = 3:1) at 70 °C for 1, 2, and 4 h, respectively. The oxidized MWCNTs were characterized by N2 adsorption, Fourier-transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), thermal gravimetric analysis (TGA), and Raman spectroscopy to determine the oxidation degree. The dispersion of the MWCNTs was investigated by UV-vis-NIR, SEM, and dynamic light scattering measurements. Results show that sulfonitric treatment increased the surface area and total pore volume and reduced the average pore diameter of MWCNTs. The treatment promoted the formation of oxidized species on the surface MWCNTs, as identified by FT-IR, TGA, and X-ray photoelectron spectroscopy measurements, and more oxygen-containing functional groups were generated when treatment time was extended. Moreover, a general relationship between oxidation degree and dispersibility of MWCNTs in water was established. UV-vis-NIR and dynamic light scattering measurements and SEM images revealed that MWCNTs with higher oxidation degree showed better dispersibility in water.

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