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Molecules
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Structural Design and Preparation of Liquid Crystal/Polymer Composite Films
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Structural Design and Preparation of Liquid Crystal/Polymer Composite Films

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Molecular Structure".

Deadline for manuscript submissions: 31 July 2024 | Viewed by 2208

Special Issue Editor

Dr. Wan-Li He

E-Mail Website
Guest Editor
School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
Interests: liquid crystal materials; responsive materials; nanomaterials; high-throughput preparation

Special Issue Information

Dear Colleagues,

This Special Issue mainly focuses on the structural design, preparation, and performance of liquid crystal/polymer composite films or materials such as concentrated polymer-dispersed liquid crystal, polymer stabilized cholesteric phase, polymer-stabilized blue, etc., as well as research on the response of liquid crystal polymer composites to temperature, light, electric fields, humidity, pH values, and concentration. It is expected to develop liquid crystal/polymer composites that can be used in optical films and devices in display and non-display fields.

Dr. Wan-Li He
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • liquid crystal
  • polymer
  • composite
  • film
  • mesophase
  • structure and properties

Published Papers (2 papers)

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Research

16 pages, 17743 KiB  
Article
Preparation of Progressive Driving Bilayer Polymer-Dispersed Liquid Crystals Possessing a PDLC-PVA-PDLC Structure
by Yongle Wu, Yuzhen Zhao and Dong Wang
Molecules 2024, 29(2), 508; https://doi.org/10.3390/molecules29020508 - 19 Jan 2024
Viewed by 749
Abstract
In this paper, the bilayer polymer-dispersed liquid crystals possessing a PDLC-PVA-PDLC structure were prepared by integrating two monolayer PDLCs. The effect of the polymer mesh size on the electro–optical properties of a bilayer PDLC was investigated by comparing the micro-morphology and electro–optical curves [...] Read more.
In this paper, the bilayer polymer-dispersed liquid crystals possessing a PDLC-PVA-PDLC structure were prepared by integrating two monolayer PDLCs. The effect of the polymer mesh size on the electro–optical properties of a bilayer PDLC was investigated by comparing the micro-morphology and electro–optical curves under different polymerization conditions. In addition, the impact of doping MoO2 nanoparticles with surface modification on the comprehensive performance of the bilayer PDLC was further researched. The contrast ratio of the bilayer PDLC prepared under the optimal conditions was improved by more than 90% and still maintained excellent progressive driving performance. Therefore, the development of a bilayer PDLC with optimal electro-optical properties will significantly enhance the technological prospects for the application of PDLC-based devices in smart windows, displays, and flexible devices. Full article
(This article belongs to the Special Issue Structural Design and Preparation of Liquid Crystal/Polymer Composite Films)
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11 pages, 3428 KiB  
Article
High-Throughput Preparation and High-Throughput Detection of Polymer-Dispersed Liquid Crystals Based on Ink-Jet Printing and Grayscale Value Analysis
by Rui-Juan Xiong, Yun-Xiao Ren, Yong-Feng Cui, Shu-Feng Cai, Wan-Li He and Xiao-Tao Yuan
Molecules 2023, 28(5), 2253; https://doi.org/10.3390/molecules28052253 - 28 Feb 2023
Viewed by 1025
Abstract
In this paper, based on high-throughput technology, polymer dispersed liquid crystals (PDLC) composed of pentaerythritol tetra (2-mercaptoacetic acid) (PETMP), trimethylolpropane triacrylate (TMPTA), and polyethylene glycol diacrylate (PEGD 600) were investigated in detail. A total of 125 PDLC samples with different ratios were quickly [...] Read more.
In this paper, based on high-throughput technology, polymer dispersed liquid crystals (PDLC) composed of pentaerythritol tetra (2-mercaptoacetic acid) (PETMP), trimethylolpropane triacrylate (TMPTA), and polyethylene glycol diacrylate (PEGD 600) were investigated in detail. A total of 125 PDLC samples with different ratios were quickly prepared using ink-jet printing. Based on the method of machine vision to identify the grayscale level of samples, as far as we know, it is the first time to realize high-throughput detection of the electro-optical performance of PDLC samples, which can quickly screen out the lowest saturation voltage of batch samples. Additionally, we compared the electro-optical test results of manual and high-throughput preparation PDLC samples and discovered that they had very similar electro-optical characteristics and morphologies. This demonstrated the viability of PDLC sample high-throughput preparation and detection, as well as promising application prospects, and significantly increased the efficiency of PDLC sample preparation and detection. The results of this study will contribute to the research and application of PDLC composites in the future. Full article
(This article belongs to the Special Issue Structural Design and Preparation of Liquid Crystal/Polymer Composite Films)
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