Well-defined carbohydrate-based polymers in calcium carbonate crystallization: Influence of stereochemistry in the polymer side chain on polymorphism and morphology

The effect of the polymers (poly(2-(2,3,4,6-tetra-O-acetyl-β-d-glucosyloxy)ethylmetha-crylate) and poly(2-(2,3,4,6-tetra-O-acetyl-β-d-galactosyloxy)ethylmethacrylate)) with molecular weights (Mw) of 10,000-18,000 g/mol and a PDI from 1.1 to 1.2 on the crystallization of calcium carbonate was studied. For the deprotected polymers differences in the phase selection of CaCO3 were observed. This effect is based on the chelating character of the OH-motif of the pyranoses.