Oxygen/Sulfur Atom Exchange Copolymerization of Carbon Disulfide and Propylene Oxide by a Highly Effective Heterogeneous Berlin Green Catalyst  

作　　者：Munir Ullah KHAN Safir Ullah KHAN CAO Xiaohan Muhammad USMAN Muhammad Naeem SHAH Abdul GHAFFAR Muhammad HASSAN ZHANG Chengjian ZHANG Xinghong 

机构地区：[1]State Key Laboratory of Motor Vehicle Biofuel Technology,International Research Center for X Polymers,Department of Polymer Science and Engineering,Zhejiang University,Hangzhou 310027,P.R.China [2]Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering,Shanxi 030013,P.R.China [3]Hefei National Laboratory for Physical Science at the Microscale,School of Life Sciences,University of Science and Technology of China,Hefei 230027,P.R.China [4]Key Laboratory of Macromolecular Synthesis and Functionalization(Ministry of Education),International Research Center for X Polymers,Department of Polymer Science and Engineering,Zhejiang University,Hangzhou 310027,P.R.China [5]College of Information Science and Electronic Engineering,Zhejiang University,Hangzhou 310027,P.R.China [6]Advanced Materials Research Center,Zhejiang University-University of Illinois at Urbana-Champaign Institute(ZJU-UIUC),Haining 314400,P.R.China

出　　处：《Chemical Research in Chinese Universities》2023年第5期790-796,共7页高等学校化学研究（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(No.51973190);the Fund of Zhejiang Provincial Department of Science and Technology,China(Nos.2020R52006,2022C01216);the Fund of Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering,China(No.2021SZ-TD003).

摘　　要：In this study,we report that Berlin Green(FeFe-BG)framework exhibits superior performance in the catalytic coupling of carbon disulfide(CS_(2))and propylene oxide(PO)to generate a random copolymer containing thioether,propylene monothiocarbonate and ether units.Oxygen and sulfur atom exchange was detected in polymeric and cyclic thiocarbonate byproducts and utilized to modulate the copolymerization of CS_(2)and propylene oxide.The coupling of PO and CS_(2)was selective for copolymer formation under various reaction conditions.^(1)H and^(13)C NMR spectroscopy determined two distinct polymer linkages and two cyclic byproducts.Copolymer number average molecular weights ranged from 6.4 kg/mol to 10.5 kg/mol,with a comparatively low polydispersity of 1.3-1.7.The CS_(2)/PO molar feed ratio had a significant impact on the O/S exchange process;the ratio of cyclic thiocarbonate byproducts could be efficiently regulated by tuning the CS_(2)molar feed ratio.

关 键 词：Carbon disulfide COPOLYMERIZATION Prussian Blue analogue Heterogeneous catalysis Berlin Green 

分 类 号：O621.251[理学—有机化学] O643.36[理学—化学]