论文标题
腔很重要吗？空心微凝胶抵抗结晶
Do cavities matter? Hollow microgels resist crystallization
论文作者
论文摘要
微凝胶的溶液已被广泛用作模型系统，以深入了解原子冷凝物质和复杂的流体。我们探索了空心微凝胶的热力学相行为，通过拥有中央空腔，它们与常规胶体区别开来。小角度中子和X射线散射用于在拥挤的环境中探测空心微凝胶。这些测量结果揭示了互穿和拆卸之间的相互作用，以及不寻常的晶体缺失。空心微凝胶溶液的蒙特卡洛模拟证实，由于空腔，它们形成的过冷液体比具有交联芯的微凝胶更稳定。
Solutions of microgels have been widely used as model systems to gain insight into atomic condensed matter and complex fluids. We explore the thermodynamic phase behavior of hollow microgels, which are distinguished from conventional colloids by possessing a central cavity. Small-angle neutron and X-ray scattering are used to probe hollow microgels in crowded environments. These measurements reveal an interplay between interpenetration and deswelling, and an unusual absence of crystals. Monte Carlo simulations of hollow microgel solutions confirm that, due to the cavity, they form a supercooled liquid more stable than in the case of microgels with a crosslinked core.
