Phase-Separation Kinetics and Mechanism in a Methylcellulose/Salt Aqueous Solution Studied by Time-Resolved Small-Angle Light Scattering (SALS)

2011 ◽  
Vol 212 (10) ◽  
pp. 1063-1071 ◽  
Author(s):  
Marcos A. Villetti ◽  
Valdir Soldi ◽  
Cyrille Rochas ◽  
Redouane Borsali
Keyword(s):  
Aqueous Solution ◽  
Phase Separation ◽  
Light Scattering ◽  
Small Angle ◽  
Kinetics And Mechanism ◽  
Time Resolved ◽  
Phase Separation Kinetics ◽  
Small Angle Light Scattering ◽  
Separation Kinetics

A Time-Resolved Low-Angle Light Scattering Apparatus. Application to Phase Separation Problems in Polymer Systems

2001 ◽  
Vol 66 (6) ◽  
pp. 973-982 ◽  
Author(s):  
Čestmír Koňák ◽  
Jaroslav Holoubek ◽  
Petr Štěpánek
Keyword(s):  
Phase Separation ◽  
Light Scattering ◽  
Signal To Noise Ratio ◽  
Scattered Light ◽  
Ccd Camera ◽  
Time Resolved ◽  
Polymer Systems ◽  
Software Analysis ◽  
Phase Separation Kinetics ◽  
Small Angle Light Scattering

A time-resolved small-angle light scattering apparatus equipped with azimuthal integration by means of a conical lens or software analysis of scattering patterns detected with a CCD camera was developed. Averaging allows a significant reduction of the signal-to-noise ratio of scattered light and makes this technique suitable for investigation of phase separation kinetics. Examples of applications to time evolution of phase separation in concentrated statistical copolymer solutions and dissolution of phase-separated domains in polymer blends are given.

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