研究目的
To design, prepare, and study the properties of epoxy-mercaptan polymer/nematic liquid crystal composites with electrically switchable optical transmittance, focusing on controlling the polymer microstructure for improved electro-optical performance.
研究成果
The study successfully demonstrated the control of polymer microstructure in epoxy-mercaptan polymer/LC composites, leading to electrically switchable optical transmittance. The optimal electro-optical performance was achieved with smaller polymer microspheres. This work provides insights into microstructure control and the development of smart films for various applications.
研究不足
The study is limited by the specific materials and conditions used, such as the types of epoxy and mercaptan, curing temperatures, and LC content. The generalizability of the findings to other systems may require further investigation.
1：Experimental Design and Method Selection:
The study involved the preparation of PDLC films by thermal-initiated polymerization induced phase separation, using epoxy monomers and mercaptan hardeners with nematic LC.
2：Sample Selection and Data Sources:
Samples were prepared with varying curing temperatures, mercaptan molecular structures, and compositions of epoxy, mercaptan, and LC.
3：List of Experimental Equipment and Materials:
Materials included N,N-Diglycidyl-4-glycidyloxyaniline, Poly(propylene glycol) diglycidyl ether, various thiol monomers, and nematic LC E
4：Equipment included SEM, FT-IR spectrophotometer, POM, and LCD parameter tester. Experimental Procedures and Operational Workflow:
The process involved constructing sample cells, preparing syrups of LC/epoxy/mercaptan/catalyst, filling the cells, and curing at constant temperatures.
5：Data Analysis Methods:
Electro-optical properties were measured, and microstructures were analyzed using SEM and POM.
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