Effects of terpene alcohol dopant on the morphology and electro‐optical properties of polymer‐dispersed liquid‐crystal composite films. (28th June 2021)

• Record Type: Journal Article
• Authors: Huang, Junyi; Hu, Wei; Yu, Meina; Ren, Yunxiao; Zhang, Lanying; Yang, Huai
• Other Names: Penczek Stanislaw guestEditor.; Matyjaszewski Krzysztof guestEditor.
• Is Part Of: Polymers for advanced technologies. Volume 32:Number 10(2021)
• Page Start: 4153
• Page End: 4161
• Publication Date: 2021-06-28
• Subjects: dopant -- electro‐optical properties -- geraniol -- polymer‐dispersed liquid‐crystal -- terpene alcohol; Polymers -- Periodicals; 668.9
• DOI: 10.1002/pat.5424
• Languages: English
• ISSNs: 1042-7147

Abstract

Abstract: Terpenes are a large class of hydrocarbon compounds derived from isoprene, which can be produced by plants or emitted by insects. Terpene alcohols contain double bonds that may affect the addition polymerization, and hydroxyl groups that can promote the network crosslinking density during the formation of polymer‐dispersed liquid‐crystal (PDLC) composite films. In this work, effects of different terpene alcohol dopant on the morphology and electro‐optical properties of PDLC films are systematically investigated. It is found that the appropriate dopant amount of geraniol (GOL) has the superior effect to improve the electro‐optical performance. The optimum addition amount is at 3 wt%, where the transmittance vs. voltage curve gets steeper, the driving voltage of PDLC film reduces from 74 to 32 V and meanwhile the contrast ratio maintains at a relatively high level (123). Thus, this work not only broadens the application scope of the natural spices but also provides a new strategy to reduce the driving voltage of PDLC films for practical applications.