The term miscibility refers to the single-phase state in thermodynamics. I do not mean the compatibility of different components.
To determine the miscibility I know several techniques such as DSC, SEM, and optical interferometry.
What other techniques can be used to determine the miscibility of polymer blends?
I would be happy if this question could generate many suggestions and comments.
Dear Shen Su, you can use DSC, SEM, and viscometry. My Regards
Hi;
The observation of the glass transition of polymers is one of the most used criteria to determine whether a polymer blend is single or two-phase. For the determination of the Tg of polymers, different techniques can be used such as Differential Scanning Calorimetry (DSC), Dynamic Mechanical Analysis (DMA), Dielectric Relaxation Spectroscopy (DRS) and Nuclear Magnetic Resonance (NMR).
Other techniques such as optical microscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), atomic force microscopy (AFM) are sensitive to the size and structure of the mixture, providing a direct means of visualizing the morphology and/or phase separation kinetics.
Light scattering is used to evaluate the turbidity of a material and reveal the presence of scattering points with different refractive indices, such as the presence of crystals or phase-separated regions in the mixture. This turbidity is observed visually using a photoelectric cell or a UV-visible spectrophotometer.
Other scattering techniques such as Small Angle X-ray Scattering (SAXS), Small Angle Neutron Scattering (SANS) and Neutron Reflectivity (NR) are also used in the study of miscibility. They are used to measure interaction parameters, local structure conformation, domain size and crystallinity.
With my best regards
Dear Shen Su;
Please check the following documents.
My regards
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