Phenanthroimidazole derivative, and preparation method therefor and application thereof

US12168645B2 · kind B2 · utility

Assignee

• GUANGDONG UNIVERSITY OF TECHNOLOGY · CN

Inventors

• Yanping Huo · Longbeilingcun, CN
• Yudong Wen · Longbeilingcun, CN
• Hongping Xiang · Longbeilingcun, CN
• Shaomin Ji · Longbeilingcun, CN
• Wencheng Chen · Longbeilingcun, CN
• Jiye LUO · Longbeilingcun, CN
• Liang Gao · Houston, US
• Jingwei ZHAO · 安丰镇, CN

Key dates

• Filing date: Jul 30, 2021
• Grant date: Dec 17, 2024
• Expiry date: Jul 30, 2041

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/10
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Provided are a phenanthroimidazole derivative, and a preparation method therefor, and an application thereof. The phenanthroimidazole derivative has a structural formula as shown in Formula (I), R being an electron donor group,wherein by taking a phenanthroimidazole group containing a trifluoromethyl phenyl group as an electron acceptor, and in virtue of the properties of the specific electron donor group R, the phenanthroimidazole derivative containing a light-absorbing photosensitive group of a series D-π-A structure is synthesized, and can be used as a photoinitiator, which is used in the technical field of UV light-curing systems or 3D printing. The phenanthroimidazole derivative has a certain conjugated chain length, can increase its photon absorption cross section, can serve as a photoinitiator of a UV light-curing system, for initiating a polymerization reaction at a wavelength of 365 nm, and has high polymerization efficiency; a double bond conversion rate of the phenanthroimidazole derivative in 50 s is up to 88.34%.