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用于液晶取向的可再生丁香酚改性聚苯乙烯层

Renewable, Eugenol-Modified Polystyrene Layer for Liquid Crystal Orientation.

作者信息

Ju Changha, Kim Taehyung, Kang Hyo

机构信息

Department of Chemical Engineering, Dong-A University, 37 Nakdong-Daero 550beon-gil, Saha-gu, Busan 604-714, Korea.

出版信息

Polymers (Basel). 2018 Feb 17;10(2):201. doi: 10.3390/polym10020201.

DOI:10.3390/polym10020201
PMID:30966237
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6415104/
Abstract

We synthesized a series of plant-based and renewable, eugenol-modified polystyrene (PEUG#) (# = 20, 40, 60, 80, and 100, in which # is the molar content of the eugenol moiety in the side group). Eugenol is extracted from clove oil. We used polymer modification reactions to determine the liquid crystal (LC) orientation properties of the polymer films. In general, the LC cells fabricated using the polymer films with a higher molar content of eugenol side groups exhibited vertical LC orientation behavior. The vertical orientation behavior was well correlated with the surface energy value of the polymer films. The vertical LC orientation could be formed due to the low polar surface energy value on the polymer film generated by the nonpolar carbon group. Electro-optical performances (e.g., voltage holding ratio (VHR), residual DC voltage (R-DC), and thermal orientation stabilities) were good enough to be observed for LC cells using PEUG100 polymer as an eco-friendly LC orientation material.

摘要

我们合成了一系列基于植物的可再生丁香酚改性聚苯乙烯（PEUG#）（# = 20、40、60、80和100，其中#是侧基中丁香酚部分的摩尔含量）。丁香酚是从丁香油中提取的。我们使用聚合物改性反应来确定聚合物薄膜的液晶（LC）取向特性。一般来说，使用丁香酚侧基摩尔含量较高的聚合物薄膜制备的LC盒表现出垂直LC取向行为。垂直取向行为与聚合物薄膜的表面能值密切相关。由于非极性碳基团在聚合物薄膜上产生的低极性表面能值，可形成垂直LC取向。对于使用PEUG100聚合物作为环保型LC取向材料的LC盒，其电光性能（如电压保持率（VHR）、残余直流电压（R-DC）和热取向稳定性）足以被观察到。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5d5f/6415104/4e4894d44b8e/polymers-10-00201-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5d5f/6415104/c7c54ea64436/polymers-10-00201-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5d5f/6415104/5a125e09ea21/polymers-10-00201-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5d5f/6415104/ba3878571f82/polymers-10-00201-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5d5f/6415104/934c8bf475f7/polymers-10-00201-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5d5f/6415104/d19400b22d31/polymers-10-00201-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5d5f/6415104/9a783e3b46d9/polymers-10-00201-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5d5f/6415104/4e4894d44b8e/polymers-10-00201-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5d5f/6415104/c7c54ea64436/polymers-10-00201-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5d5f/6415104/5a125e09ea21/polymers-10-00201-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5d5f/6415104/ba3878571f82/polymers-10-00201-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5d5f/6415104/934c8bf475f7/polymers-10-00201-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5d5f/6415104/d19400b22d31/polymers-10-00201-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5d5f/6415104/9a783e3b46d9/polymers-10-00201-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5d5f/6415104/4e4894d44b8e/polymers-10-00201-g007.jpg

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