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公开(公告)号：US11186676B2
公开(公告)日：2021-11-30
申请号：US16467987
申请日：2017-11-27
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Abstract: Provided are a polymer containing S,S-dioxide-dibenzothiophene in backbone chain with content-adjustable triarylamine end groups, and a preparation method and an application thereof. Triarylamines hole-transport small molecules are introduced into the polymer end group, and a content of the triarylamine end groups can be adjusted by controlling a polymer molecular weight, so that the polymer has better electron-transport and hole-transport capabilities, and charge carrier transport can be balanced, so that more exciton recombination takes place effectively, thus improving the luminous efficiency and stability of the polymer. The polymer is prepared by a Suzuki polymerization reaction and does not require synthesis of new monomers. The polymer material is used for preparing highly effective and stable monolayer devices, and is dissolved directly in an organic solvent, then spin-coated, ink-jet printed, or printed to form a film.
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公开(公告)号：US10710974B2
公开(公告)日：2020-07-14
申请号：US16332796
申请日：2016-12-07
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Hao Yu , Mengmeng Hou , Feng Peng , Yonghai Cao , Hongjuan Wang
IPC: C07D313/04 , B01J21/18
Abstract: The present invention discloses a method for preparing ε-caprolactone. The method comprises the steps of: adding cyclohexanone, a co-oxidant and a certain amount of catalyst into a certain amount of organic solvent, using molecular oxygen as an oxidant, implementing a reaction with stirring for 0.1 to 24 hours under a pressure of 0.1 to 2 MPa and at a temperature of 60° C. to 100° C., wherein the co-oxidant is acrolein, and the catalyst is a carbon material. The present invention has the advantages of high-efficiency co-oxidant, easily available and recovered catalyst, environmental-friendly oxidant, simple operation and low cost.
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