High yield synthesis of biodegradable poly(propylene carbonate) from carbon dioxide and propylene oxide |
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Authors: | Hongchun Li Yongsheng Niu |
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Institution: | College of Chemistry and Pharmacy, Qingdao Agricultural University, Qingdao, China |
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Abstract: | A novel SalenCoIII (2,4‐dinitrophenoxy) (Salen = N,N'‐bis(3,5‐di‐tert‐butylsalicylidene)‐1,2‐cyclohexanediamino) and 1,10‐phenanthroline monohydrate catalyst system was designed and employed for the copolymerization of CO2 and propylene oxide (PO). The perfectly alternating copolymerization of CO2 and PO proceeds effectively under middle temperature and pressure to yield poly(propylene carbonate) with a high yield and a high number average molecular weight of polymer. The structure of polymer was characterized by the IR and NMR measurements. The perfectly alternating copolymer was confirmed. The MALDI‐TOF spectrum insinuates that the copolymerization of CO2 and PO was initiated by H2O. Copyright © 2016 John Wiley & Sons, Ltd. |
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Keywords: | carbon dioxide propylene oxide copolymerization alternating copolymer poly(propylene carbonate) |
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