Journal
PROGRESS IN POLYMER SCIENCE
Volume 114, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.progpolymsci.2021.101365
Keywords
Stimuli-induced stratification; Liquid crystals; Polymer composites; Photopolymerization; Phase separation
Categories
Funding
- National Key R&D Program of China [2020YFE0100200]
- Science and Technology project of Guangdong Province [2018A030313929]
- Science and Technology Program of Guangzhou [2019050 001]
- Program for Chang Jiang Scholars and Innovative Research Teams in Universities [IRT_17R40]
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology [2017B030301007]
- MOE International Laboratory for Optical Information Technologies
- 111 Project
- Yunnan expert workstation [202005AF150028]
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The article summarizes the development of stratification as a tool for controlling structure formation in LC/polymer materials and the applications of fabricated devices. It focuses on the use of light as a clean and effective trigger to initiate photopolymerization and induce stratification, as well as discusses future challenges and opportunities in this exciting area.
Major research challenges for materials science and technology include the design of tailor-made materials with deliberately controlled and multifunctional performance attributes. In the field of composite materials, powerful methods have been developed to control and dynamically modulate the distribution of components to facilitate synergistic property combinations that are fundamental to the design of next-generation smart materials. Liquid crystals (LCs) are promising candidates to serve as building components for polymer composites, since they not only possess unique optical, electrical, and mechanical properties but can also respond to various stimuli. In this work, the development of stratification as a tool for controlling structure formation in LC/polymer materials and the applications of fabricated devices are summarized. This review focuses specifically on the use of light as a clean and effective trigger to initiate photopolymerization and induce stratification. The different mechanisms of light-induced stratification, their implementation for the design and fabrication of composite materials and their corresponding properties are presented. Finally, future challenges and opportunities in this exciting area, including new techniques, are discussed.
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