Synthesis of Sulfur/Selenium-containing Polyester with Recyclability and Controllable Hydrophilicity and Glass Transition Temperature  

作　　者：Wen-Jing Li Xiang-Qiang Pan Jian Zhu Zheng-Biao Zhang 

机构地区：[1]Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application,Department of Polymer Science and Engineering,College of Chemistry,Chemical Engineering and Materials Science,Soochow University,Suzhou 215123,China

出　　处：《Chinese Journal of Polymer Science》2023年第12期1836-1845,I0004,I0005,共12页高分子科学（英文版）

基　　金：financially supported by National Key Research and Development Program of China(No.2022YFB3704905);the Priority Academic Program Development(PAPD)of Jiangsu Higher Education Institutions.

摘　　要：We present a ring-opening polymerization of bridged cyclic lactone utilizing alcohol as the initiator and organic base as the catalyst.Bridged γ-butyrolactone monomers(PhSGBL and PhSeGBL)were synthesized efficiently from commercially available 3-cyclohexene-1-carboxylic acid.Due to the ring strain of the bridged structure,ring-opening polymerization of this type of γ-butyrolactone derivative was successfully carried out under mild conditions,e.g.,using ethylene glycol as the initiator and a commercial catalyst[1,5,7-triazabicyclo[4.4.0 dec-5-ene(TBD)]]as the catalyst at 30℃.The obtained polymer could be degraded to its monomer for recycling in the presence of ZnCl_(2) as a catalyst.PhSGBL and PhSeGBL could also be copolymerized with ε-caprolactone to tune the glass transition temperature.Additionally,the hydrophilicity of the obtained sulfur-containing polymers could be adjusted by selectively oxidizing the thioether side group to sulfone/sulfoxide,which offered a way to tune the hydrophilicity of polyester.On the other hand,the obtained selenium-containing compound could be degraded in the presence of m-CPBA(3-chloroperbenzoic acid),which offered potential application in sustained drug release.

关 键 词：Ring-opening polymerization POLYESTER Closed-loop recycling Selective oxidation 

分 类 号：O62[理学—有机化学]