Soochow University

Opple Lighting Co., Ltd.

Suzhou Opple Lighting Co., Ltd.

Jian Zhu

Jing Yang

Jianguo Li

Shitao Deng

Chaobo Liu

Xiufeng Shi

Xiulin Zhu

Guoping Zhang

Kai Wang

Cong Wang

Na Li

Qilong Li

Chunlai Ding

Huinan Jiang

Xiaofei Huang

Jiajia Li

Xiangqiang Pan

Wen Yang

The invention relates to a method for preparing a vinyl ether polymer by photo-initiated polymerization, which comprises the step of: under a protective atmosphere, performing photo-initiated polymerization on a vinyl ether monomer in the presence of an organic halogenated hydrocarbon and manganese carbonyl under irradiation of light having a wavelength of 365-550 nm at &#x2212;25&#xb0; C. to 25&#xb0; C., to obtain a vinyl ether polymer after the reaction is completed. In the method, a vinyl ether monomer is subjected to cationic polymerization in the presence of manganese carbonyl and an organic halogenated hydrocarbon under visible light, to prepare a vinyl ether polymer with controlled molecular weight and narrow molecular weight distribution.

Method for preparing vinyl ether polymer by photo-initiated polymerization

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.

Selenium-containing polyimide polymer, preparing method and use thereof

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Suzhou, China

Jian Zhu