| 초록 |
Charged macromolecules are crucial components in crystallization engineering as they modify the size, shape, and phase of resulting ionic crystals. We used weakly charged poly(acrylic acid) (PAA) and block copolymer micelles (BCMs) containing PAA brushes as modifiers of CaSO4 hemihydrate crystals, which were grown through the evaporation of solution droplets. We quantified the incorporation and interference of added PAA or BCMs within the crystals formed. For the single polyelectrolytes, the interference in the crystallization is weaker as the length of PAA is increased. While, in the case of charged BCMs, the level of incorporation within crystals is enhanced with the length of PAA brushes. Importantly, the crystals incorporated BCMs as much as ~10% in volume fraction while maintaining their well-defined crystalline structure, potentially enabling the highly efficient loading of drugs or functional nanomaterials within mineral matrices. |
