Fig. 4From: Biorenewable triblock copolymers consisting of l-lactide and ε-caprolactone for removing organic pollutants from water: a lifecycle neutral solutionOverlay of UV/Vis spectra obtained during liquid–liquid extraction studies of select polymers 1 and 8.3 × 10−6 M Rose Bengal. The Rose Bengal absorbance decreased when combined with the polymers indicated in the figure legend. Inset: Comparison of aqueous (top layer) and organic (bottom layer) phases before mixing (left vial) and after mixing (right vial) with 1. The characteristic pink color of Rose Bengal disappearedBack to article page