Higaki Yuji, Masuda Takumi, Shiomoto Shohei, Tanaka Yukiko, Kiuchi Hisao, Harada Yoshihisa, Tanaka Masaru
Faculty of Science and Technology, Oita University, 700 Dannoharu, Oita 870-1192, Japan.
Graduate School of Engineering, Oita University, 700 Dannoharu, Oita 870-1192, Japan.
Langmuir. 2024 Sep 17;40(37):19612-19618. doi: 10.1021/acs.langmuir.4c02254. Epub 2024 Sep 3.
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.
利用水控制的先进材料正引起广泛关注，水的状态已成为材料设计的关键方面。本研究使用双两性离子二嵌段共聚物的水溶液，特别是聚（甲基丙烯酸羧基甜菜碱）和聚（甲基丙烯酸磺基甜菜碱）（PCB2-PSB4），探讨了微相分离对水的影响。这些共聚物形成了由两个不同水相组成的中尺度周期性有序晶格结构。通过差示扫描量热法和X射线发射光谱法发现，这些PCB2-PSB4水溶液中的水表现出明显的冷结晶和氢键构型的细微扭曲。
