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We present a straightforward yet highly efficient approach for controlling the orientations of poly(ethylene oxide) (PEO) lamellae by introducing pseudopolyrotaxane nanosheets (PPRNSs), a novel class of two-dimensional fillers featuring well-organized polymer brushes. Grazing-incidence wide-angle X-ray scattering reveals parallel alignments of uniformly flat-on PEO lamellae to the film surface, and the degrees of their orientations are closely linked to the PPRNS concentration. Via control experiments and comprehensive investigations of crystallization kinetics and morphological evolutions of nanocomposites with different PPRNS contents, we elucidate the mechanism driving lamellar orientation. PPRNSs provide additional nucleation sites for PEO crystallization, thereby influencing the crystallization kinetics. PPRNSs, acting as nucleating agents, accelerate crystallization rates, impacting crystal morphology, crystal growth direction, and crystallinity preservation. Control experiments emphasize the distinct roles of polymer brushes in offering nucleation sites. This study lays the foundation for diverse applications and further explorations of PPRNS-based materials in the fields of polymer nanocomposites, surface engineering, and functional material design.

権利情報:

• Creative Commons BY-NC-ND Attribution-NonCommercial-NoDerivs 4.0 International
  

キーワード: Crystallization, Crystals, Polymer brushes, Polymers, Quantum confinement, Two dimensional materials

刊行年月日: 2025-01-14

出版者: American Chemical Society (ACS)

掲載誌:

• MACROMOLECULES (ISSN: 15205835) vol. 58 issue. 1 p. 451-458

研究助成金:

• JST-Mirai Program JPMJMI18A2
• New Energy and Industrial Technology Development Organization JPNP18016
• Japan Society for the Promotion of Science JP19H00907
• Japan Society for the Promotion of Science JP21K14477

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.1021/acs.macromol.4c02113

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更新時刻: 2026-06-11 15:20:59 +0900

MDRでの公開時刻: 2026-06-11 16:27:48 +0900