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Fabrication and characterization of the ternary composite catalyst system of ZnGA/RET/DMC for the terpolymerization of CO(2), propylene oxide and trimellitic anhydride

To achieve the poly(propylene carbonate trimellitic anhydride) (PPCTMA) with excellent performance, high molecular weight, enhanced yield and good thermal stability, the ternary composite catalyst system of zinc glutarate/rare earth ternary complex/double metal cyanide (ZnGA/RET/DMC) was proposed to...

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Autores principales: Liu, Ningzhang, Gu, Chuanhai, Wang, Qinghe, Zhu, Linhua, Yan, Huiqiong, Lin, Qiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8695205/
https://www.ncbi.nlm.nih.gov/pubmed/35423387
http://dx.doi.org/10.1039/d0ra09630j
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author Liu, Ningzhang
Gu, Chuanhai
Wang, Qinghe
Zhu, Linhua
Yan, Huiqiong
Lin, Qiang
author_facet Liu, Ningzhang
Gu, Chuanhai
Wang, Qinghe
Zhu, Linhua
Yan, Huiqiong
Lin, Qiang
author_sort Liu, Ningzhang
collection PubMed
description To achieve the poly(propylene carbonate trimellitic anhydride) (PPCTMA) with excellent performance, high molecular weight, enhanced yield and good thermal stability, the ternary composite catalyst system of zinc glutarate/rare earth ternary complex/double metal cyanide (ZnGA/RET/DMC) was proposed to perform the terpolymerization of CO(2), propylene oxide and trimellitic anhydride. Since the crystallinity and surface activity point of Zn–Co DMC could significantly influence the catalytic ability, mechanical ball milling was applied to increase the surface area of the Zn–Co DMC catalyst with better surface activity point. Moreover, the ZnGA/RET/DMC composite catalytic system and polycarbonate products were comparatively evaluated by XRD, SEM, FT-IR, TGA, NMR, XPS and TEM. Experimental results showed that the ZnGA/RET/DMC composite catalyst system displayed outstanding synergistic effect on the terpolymerization of CO(2), PO and TMA with better selectivity, activity, and higher molecular weight (M(w)) tercopolymer than those of the individual catalyst. According to optimum reaction conditions, the M(w) of PPCTMA could be up to 8.29 × 10(4) g mol(−1), and the yield could be up to 66 g(polym)/g(cat). The alternating tercopolymer, PPCTMA, showed wonderful thermal stability and high decomposition temperature (TGA(10%) = 313 °C). A possible synergistic catalytic mechanism of the ZnGA/RET/DMC ternary composite catalyst system was also conjectured.
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spelling pubmed-86952052022-04-13 Fabrication and characterization of the ternary composite catalyst system of ZnGA/RET/DMC for the terpolymerization of CO(2), propylene oxide and trimellitic anhydride Liu, Ningzhang Gu, Chuanhai Wang, Qinghe Zhu, Linhua Yan, Huiqiong Lin, Qiang RSC Adv Chemistry To achieve the poly(propylene carbonate trimellitic anhydride) (PPCTMA) with excellent performance, high molecular weight, enhanced yield and good thermal stability, the ternary composite catalyst system of zinc glutarate/rare earth ternary complex/double metal cyanide (ZnGA/RET/DMC) was proposed to perform the terpolymerization of CO(2), propylene oxide and trimellitic anhydride. Since the crystallinity and surface activity point of Zn–Co DMC could significantly influence the catalytic ability, mechanical ball milling was applied to increase the surface area of the Zn–Co DMC catalyst with better surface activity point. Moreover, the ZnGA/RET/DMC composite catalytic system and polycarbonate products were comparatively evaluated by XRD, SEM, FT-IR, TGA, NMR, XPS and TEM. Experimental results showed that the ZnGA/RET/DMC composite catalyst system displayed outstanding synergistic effect on the terpolymerization of CO(2), PO and TMA with better selectivity, activity, and higher molecular weight (M(w)) tercopolymer than those of the individual catalyst. According to optimum reaction conditions, the M(w) of PPCTMA could be up to 8.29 × 10(4) g mol(−1), and the yield could be up to 66 g(polym)/g(cat). The alternating tercopolymer, PPCTMA, showed wonderful thermal stability and high decomposition temperature (TGA(10%) = 313 °C). A possible synergistic catalytic mechanism of the ZnGA/RET/DMC ternary composite catalyst system was also conjectured. The Royal Society of Chemistry 2021-02-25 /pmc/articles/PMC8695205/ /pubmed/35423387 http://dx.doi.org/10.1039/d0ra09630j Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Liu, Ningzhang
Gu, Chuanhai
Wang, Qinghe
Zhu, Linhua
Yan, Huiqiong
Lin, Qiang
Fabrication and characterization of the ternary composite catalyst system of ZnGA/RET/DMC for the terpolymerization of CO(2), propylene oxide and trimellitic anhydride
title Fabrication and characterization of the ternary composite catalyst system of ZnGA/RET/DMC for the terpolymerization of CO(2), propylene oxide and trimellitic anhydride
title_full Fabrication and characterization of the ternary composite catalyst system of ZnGA/RET/DMC for the terpolymerization of CO(2), propylene oxide and trimellitic anhydride
title_fullStr Fabrication and characterization of the ternary composite catalyst system of ZnGA/RET/DMC for the terpolymerization of CO(2), propylene oxide and trimellitic anhydride
title_full_unstemmed Fabrication and characterization of the ternary composite catalyst system of ZnGA/RET/DMC for the terpolymerization of CO(2), propylene oxide and trimellitic anhydride
title_short Fabrication and characterization of the ternary composite catalyst system of ZnGA/RET/DMC for the terpolymerization of CO(2), propylene oxide and trimellitic anhydride
title_sort fabrication and characterization of the ternary composite catalyst system of znga/ret/dmc for the terpolymerization of co(2), propylene oxide and trimellitic anhydride
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8695205/
https://www.ncbi.nlm.nih.gov/pubmed/35423387
http://dx.doi.org/10.1039/d0ra09630j
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