Selenium-containing polyimide polymer, preparing method and use thereof

US10316144B2 · kind B2 · utility

Assignee

• Soochow University · CN

Inventors

• Jian-Kuang Zhu · Kunshan, CN
• Qilong Li · Ganzhou, CN
• Chunlai Ding · Suzhou, CN
• Huinan Jiang · Suzhou, CN
• Xiulin ZHU · Suzhou, CN

Key dates

• Filing date: Dec 16, 2016
• Grant date: Jun 11, 2019
• Expiry date: Dec 16, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2379/08
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention provides a selenium-containing polyimide polymer, preparation method and use thereof. The method comprises: (1) polymerizing a selenide diamine monomer with a dianhydride monomer to give a selenium-containing polyamic acid; and (2) performing thermal imidization on the selenium-containing polyamic acid obtained in the step (1) to give a selenium-containing polyimide polymer. In the invention, selenium is introduced into polyimides for increasing refractive index to 1.7-1.82, this greatly improves the defects of low refractive index of the existing polyimide materials, thereby expanding its applications in the optics field.