Lyu Xiaolin, Huang Hanlin, Tang Zhehao, Luo Longfei, Luo Wenjun, Yu Yan, Shen Zhihao, Fan Xing-He, Zou Zhigang
Key Laboratory of Advanced Materials Technologies, College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China.
Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China.
Macromol Rapid Commun. 2021 Jun;42(11):e2100064. doi: 10.1002/marc.202100064. Epub 2021 Mar 15.
The preparation of 3D functional isolated mesoscopic assemblies remains a challenge in the self-assembly of polymers. Here, well-defined 3D hexagonal and hexagram prisms with uniform dimensions are acquired by the crystallization of the inclusion complex composed of a crystalline molecule tris-o-phenylenedioxycyclotriphosphazene (TPP) and a block copolymer. The crystalline TPP plays an important role in the self-assembling process. The faceted morphologies of the hexagonal and hexagram prisms are infrequent in the self-assembly field of soft materials. The formation of the prisms experiences a 3D growth mechanism. The epitaxial growth, accompanied by the heterogeneous nucleation in the edges, yields the growth of inclusion crystals. This study provides a path to construct well-defined polymeric soft materials with broad utility based on numerous supramolecular complexes.
在聚合物自组装过程中，制备3D功能性孤立介观组件仍然是一项挑战。在此，通过由结晶分子三邻苯二氧基环三磷腈（TPP）和嵌段共聚物组成的包合物结晶，获得了尺寸均匀的明确定义的3D六边形和六角星形棱柱。结晶TPP在自组装过程中起着重要作用。六边形和六角星形棱柱的多面形态在软材料自组装领域并不常见。棱柱的形成经历了3D生长机制。外延生长伴随着边缘的异质成核，产生包合晶体的生长。这项研究为基于众多超分子复合物构建具有广泛用途的明确定义的聚合物软材料提供了一条途径。
