近日，中国科学院化学研究所刘国明团队研究了聚合物在纳米孔中的成核及纳米/纳米片纳米复合材料。相关论文发表在2025年12月26日出版的《中国高分子科学杂志》上。

成核作为结晶的初始步骤，对聚合物的结晶行为起着关键调控作用，直接影响结晶温度、动力学及形态。然而，由于时空分辨率的限制，对聚合物成核过程的直接观测仍面临挑战。该专题文章综述了近期在受限空间与界面主导环境中理解聚合物成核机制的研究进展，重点关注三类代表性体系：阳极氧化铝模板、含纳米粒子及纳米片的纳米复合材料。有限尺寸效应与界面效应的相互作用揭示了一系列新现象，如均相成核、表面诱导成核、预冻结及超成核等。

附：英文原文

Title: Nucleation of Polymers in Nanopores and Nanocomposites with Nanoparticles/Nanosheets

Author: Ming Wang, Ye Yao, Hui Zhao, Wei-Long Ju, Yun-Lan Su, Du-Jin Wang, Guo-Ming Liu

Issue&Volume: 2025-12-26

Abstract: Nucleation, which is the initial step of crystallization, critically governs the polymer crystallization behavior, influencing the crystallization temperature, kinetics, and morphology. However, the direct observation of the nucleation process in polymers remains elusive owing to spatial and temporal resolution limitations. This feature article summarizes the recent progress in understanding polymer nucleation within confined and interface-dominated environments, focusing on three representative systems: anodic aluminum oxide templates and nanocomposites containing nanoparticles or nanosheets. The interplay between finite size and interfacial effects has revealed some novel phenomena, such as homogeneous nucleation, surface nucleation, prefreezing, and supernucleation.

DOI: 10.1007/s10118-025-3508-2

Source: https://www.cjps.org/en/article/doi/10.1007/s10118-025-3508-2/