Dynamic light scattering of CTAB:NaSal threadlike micelles in the semidilute regime. II. effect of surfactant concentration

1994 ◽  
Vol 272 (8) ◽  
pp. 955-961 ◽  
Author(s):  
A. Koike ◽  
T. Yamamura ◽  
N. Nemoto
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Surfactant Concentration ◽  
Threadlike Micelles

Sol-Gel Synthesis of Bioglasses: A Growth Kinetics Study by Dynamic Light Scattering

2016 ◽  
Vol 102 ◽  
pp. 18-23 ◽  
Author(s):  
Roger Borges ◽  
Juliana Marchi
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Growth Kinetics ◽  
Surfactant Concentration ◽  
Sol Gel ◽  
Particle Growth ◽  
Ionic Ratio ◽  
Factorial Design Of Experiments ◽  
Sol Gel Synthesis ◽  
Lower Particle Size

In this work, the nucleation of bioglasses particles was approached through Dynamic Light Scattering in order to analyze how different synthesis parameters influence on the particle growth. It was evaluated the following parameters: pH between 10 and 11; surfactant concentration (PEG) between 0 to 20g/L; Three different compositions were chosen based on the 47SiO2-(38 – x)Na2O-(9 + x)CaO-6P2O5 system ( x = 0, 10 and 20). For each experimental condition, the growth kinetics (Kc.t-1) was calculated, and the obtained values were analyzed by factorial design of experiments. The results evidence that higher pH, higher surfactant concentration and lower Na/Ca ionic ratio lead to lower values growth kinetics in which, in turn, are associated with lower particle size.

Dynamic light scattering from gels in a poor solvent

1978 ◽  
Vol 39 (9) ◽  
pp. 955-960 ◽  
Author(s):  
E. Geissler ◽  
A.M. Hecht
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Poor Solvent

DYNAMIC LIGHT SCATTERING IN LC-440 NEMATIC LIQUID CRYSTAL

2014 ◽  
Vol 73 (11) ◽  
pp. 977-983
Author(s):  
A. P. Fedoryako ◽  
A. I. Kocherzhin ◽  
M. P. Kukhtin ◽  
E. I. Chernyakov
Keyword(s):  
Liquid Crystal ◽  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Nematic Liquid Crystal
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