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Polymer–Liquid Crystal Composites: Their Structure, Function, and Emerging Applications

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Smart and Functional Polymers".

Deadline for manuscript submissions: closed (31 March 2026) | Viewed by 927

Special Issue Editor


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Guest Editor
Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland
Interests: liquid crystal devices; photopolymerization; photo-alignment; fiber optics; fiber optic sensors; tunable photonic devices; 3D microprinting; stereolithography; two-photon polymerization

Special Issue Information

Dear Colleagues,

Polymer–liquid crystal composites represent a versatile class of soft materials that combine the structural tunability, processability, and mechanical robustness of polymers with the unique anisotropic, responsive, and self-organizing properties of liquid crystals. Recent progress in molecular design, synthesis, and fabrication techniques has enabled unprecedented control over the composite architectures of these composites across multiple length scales, unlocking novel functional behaviors. This Special Issue aims to highlight the latest developments in the understanding and engineering of polymer–liquid crystal systems, spanning topics from fundamental structure–property relationships and phase behavior to advanced characterization methods and scalable manufacturing strategies. Particular emphasis will be placed on emerging applications, including flexible optics, photonic devices, stimulus-responsive coatings, wearable sensors, soft actuators, and biomedical interfaces. By bringing together contributions from chemistry, materials science, physics, and engineering, this Special Issue seeks to provide a comprehensive overview of how the synergy between polymers and liquid crystals is driving innovation in next-generation functional materials

Dr. Sławomir Ertman
Guest Editor

Manuscript Submission Information

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Keywords

  • polymer–liquid crystal composites
  • liquid crystalline polymers
  • responsive materials
  • photonic devices
  • soft actuators
  • wearable sensors
  • self-assembly

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Published Papers (1 paper)

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Research

12 pages, 2485 KB  
Article
Electrical Modification of Self-Assembled Polymer-Stabilized Periodic Microstructures in a Liquid Crystal Composite
by Miłosz S. Chychłowski, Marta Kajkowska, Jan Bolek, Oleksandra Gridyakina, Bartosz Bartosewicz, Bartłomiej Jankiewicz and Piotr Lesiak
Polymers 2025, 17(24), 3342; https://doi.org/10.3390/polym17243342 - 18 Dec 2025
Cited by 1 | Viewed by 654
Abstract
Utilization of natural processes can reduce the complexity and production cost of any device by limiting the necessary steps in the production scheme, especially when it comes to fibers with periodic changes in refractive index. One such process is the nematic–isotropic phase separation [...] Read more.
Utilization of natural processes can reduce the complexity and production cost of any device by limiting the necessary steps in the production scheme, especially when it comes to fibers with periodic changes in refractive index. One such process is the nematic–isotropic phase separation of liquid crystal-based composite confined in 1D space. In this paper, we analyze the behavior of polymer-stabilized liquid crystal-based self-assembled periodic structures in an external electric field. We performed a detailed analysis regarding the reorientation of liquid crystal molecules under two orthogonal directions of the external electric field applied to the examined sample. It was demonstrated that the period of the polymerized structure remains constant until full reorientation, as the electric field induces the formation of new periodic defects in LC orientation. Consequently, the structure’s effective birefringence changes quite drastically, and this observed change depends on the direction of the electric field vector. The obtained results seem promising when it comes to application of the proposed periodic structures as voltage or electric field sensors operating as long-period fiber gratings or fiber Bragg gratings for the visible or near-infrared spectral regions. Full article
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