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Pronounced Cold Crystallization and Hydrogen Bonding Distortion of Water Confined in Microphases of Double Zwitterionic Block Copolymer Aqueous Solutions. | LitMetric

AI Article Synopsis

  • Advanced materials that control water properties are becoming increasingly important in material design.
  • This study focused on the effects of microphase separation in certain aqueous solutions of diblock copolymers, namely poly(carboxybetaine methacrylate) and poly(sulfobetaine methacrylate).
  • Techniques like differential scanning calorimetry and X-ray emission spectroscopy revealed that the water in these solutions experiences significant cold crystallization and changes in hydrogen bonding.

Article Abstract

Advanced materials leveraging water control are garnering considerable interest, with the state of water emerging as a critical aspect of material design. This study explored the impact of microphase separation on water using aqueous solutions of double zwitterionic diblock copolymers, specifically poly(carboxybetaine methacrylate) and poly(sulfobetaine methacrylate) (PCB2--PSB4). These copolymers form a mesoscale periodic ordered lattice structure consisting of two distinct aqueous phases. Through differential scanning calorimetry and X-ray emission spectroscopy, it was found that water in these PCB2--PSB4 aqueous solutions exhibits pronounced cold crystallization and subtle distortions in hydrogen-bonding configurations.

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http://dx.doi.org/10.1021/acs.langmuir.4c02254DOI Listing

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