Polymer layers MP-SPR & QCM-D
Application Note #115
Absorbed mass of Pluronic P (1.54 mM) to different surfaces after rinsing with water and % of coupled water.
A triblock copolymer Pluronic P-105 adsorption on polypropene (PP), polyethylene terephtalate (PET), nylon and cellulose surfaces was measured with Multi-Parametric Surface Plasmon Resonance (MP-SPR) and Quartz Crystal Microbalance (QCM). Wet mass (QCM) and dry mass (MP-SPR) of polymer layer was calculated and compared to determine the amount of coupled water in the layer. Polymer adsorption kinetic to different surfaces was also determined. Adsorbed mass and the amount of coupled water was depending on the hydrophilicity of the surface.
Recommended instrument for this application
Further reading
- If you are interested in polymers, you may also view AN#149 about polymer characterization using MP-SPR – Adsorption studies and layer thickness, and AN#159 about vapour induced polymer swelling.
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