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Terpolymerizations of CO 2 , Propylene Oxide and DL‐Lactide Catalyzed by Zn‐Fe DMC Catalysts with Quaternary Ammonium Salts
Author(s) -
Liu Ningzhang,
Gu Chuanhai,
Chen Mengting,
Zhang Junan,
Yang Wen,
Zhan Aihong,
Zhang Kewei,
Lin Qiang,
Zhu Linhua
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201904461
Subject(s) - catalysis , propylene oxide , dispersity , polymer , materials science , ball mill , ammonium , oxide , inorganic chemistry , polymer chemistry , organic chemistry , chemistry , copolymer , metallurgy , composite material , ethylene oxide
Abstract Polymers synthesized from carbon dioxide (CO 2 ) and epoxy compounds are biodegradable materials and therefore are potentially very important in tackling the plastic pollutions. In this work, we synthesized Zn–Fe DMC catalysts with quaternary ammonium salts as a cocatalyst via ball milling. The obtained catalysts showed excellent activity (turn over frequency up to TOF=5.65 g‐polymer/g‐Zn h −1 ) in the terpolymerizations of CO 2 , propylene oxide and DL‐Lactide, yielding the biodegradable polymers with average relative molecular mass between 9.8×10 3 and 1.1×10 4 , and the polydispersity index in the range of 1.7‐2.0. The main advantages of using mechanochemical method for the synthesis of the catalysts lie in the easy adjustment of co‐catalyst loading and its operational simplicity.