Journal article
Porous Janus Polymer Single Crystals via Liquid-Liquid Phase Separation at Oil-Water Interface
Giant (Oxford, England), v 29, 100411
Jul 2026
Abstract
Coupling liquid–liquid phase separation (LLPS) with crystallization has emerged as an effective strategy for regulating polymer crystalline structures and elucidating crystallization mechanisms. In this work, we investigate the evaporative crystallization of poly(caprolactone) at water surface using three PCLs with different chain-end functionalities. By tailoring the chain ends and employing evaporative crystallization on water surfaces, the crystallization pathways were systematically controlled, enabling the formation of single-crystalline porous Janus films and two-dimensional (2D) Janus polymer single crystals. The observed structural evolution is attributed to the interplay between LLPS and crystallization during solvent evaporation. These results reveal a strong correlation between polymer chain conformation and crystalline morphology at liquid–liquid interfaces, providing new insights into interfacial polymer crystallization and the design of anisotropic polymeric structures.
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Details
- Title
- Porous Janus Polymer Single Crystals via Liquid-Liquid Phase Separation at Oil-Water Interface
- Creators
- Hao Qi - Drexel UniversityShichen Yu - Drexel UniversityChristopher Y. Li (Corresponding Author) - Drexel University
- Publication Details
- Giant (Oxford, England), v 29, 100411
- Publisher
- Elsevier
- Number of pages
- 9
- Grant note
- National Science Foundation (NSF): DMR 2513217, 2104968
Acknowledgments C.Y.L. is grateful to the National Science Foundation (NSF) for the support (DMR 2513217 and 2104968) .
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering; School of Engineering
- Web of Science ID
- WOS:001847335300001
- Other Identifier
- 991022200655704721