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Organic carbonates as green and sustainable complexing agents for double metal cyanide catalysts for the synthesis of polyether and poly(ether-carbonate) polyols.

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Title: Organic carbonates as green and sustainable complexing agents for double metal cyanide catalysts for the synthesis of polyether and poly(ether-carbonate) polyols.
Authors: Tran, Chinh Hoang1 (AUTHOR), Jang, Han Byeol1 (AUTHOR), Moon, Byeong-ryeol1 (AUTHOR), Lee, Eun-gyeong1 (AUTHOR), Choi, Ha-kyung1 (AUTHOR), Kim, Il1 (AUTHOR) ilkim@pusan.ac.kr
Source: Catalysis Today. Jan2024, Vol. 425, pN.PAG-N.PAG. 1p.
Subjects: Metal cyanides, Metal catalysts, Polyethers, Catalyst synthesis, Polyols, Ethylene carbonates
Abstract: We investigated various linear carbonates, including dimethyl carbonate and diethyl carbonate, and cyclic carbonates such as ethylene carbonate, propylene carbonate (PC), butylene carbonate, and glycerol carbonate, as complexing agents (CAs) for the preparation of double metal cyanide (DMC) catalysts. The DMC catalysts bearing carbonate complexing agents exhibited good to excellent activities for the ring-opening polymerization of epoxides (turnover frequencies of up to 467 min−1) and the copolymerization of epoxides and CO 2 , producing polyether polyols with moderate molecular weights (1700–9700 g mol−1), narrow polydispersity indexes (1.1–1.2), very low unsaturation values (0.002–0.009), and low viscosities (438 −997 cP). The DMC catalyst bearing PC also afforded linear and branched polycarbonate polyols in high yields (up to 83%) and carbonate contents (up to 36 mol%). Density functional theory calculations were also performed to understand the effect of the CAs on the structural properties and activities of the corresponding DMC catalysts. [Display omitted] • A green and viable procedure for preparing double metal cyanide (DMC) catalyst are developed. • The effect of cyclic carbonates on the structure and activity of DMC catalysts is investigated. • DMC catalysts bearing cyclic carbonates show excellent activities for the polymerization of various epoxides. • The resultant polyether polyols have strict "head-to-tail" regiosequences with narrow distribution and very low unsaturation. • DMC catalyst produces linear and branched polycarbonate polyols with high yield and carbonate contents. [ABSTRACT FROM AUTHOR]
Copyright of Catalysis Today is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 172041894
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  Label: Title
  Group: Ti
  Data: Organic carbonates as green and sustainable complexing agents for double metal cyanide catalysts for the synthesis of polyether and poly(ether-carbonate) polyols.
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  Data: <searchLink fieldCode="AR" term="%22Tran%2C+Chinh+Hoang%22">Tran, Chinh Hoang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jang%2C+Han+Byeol%22">Jang, Han Byeol</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Moon%2C+Byeong-ryeol%22">Moon, Byeong-ryeol</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lee%2C+Eun-gyeong%22">Lee, Eun-gyeong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Choi%2C+Ha-kyung%22">Choi, Ha-kyung</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kim%2C+Il%22">Kim, Il</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> ilkim@pusan.ac.kr</i>
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  Data: <searchLink fieldCode="JN" term="%22Catalysis+Today%22">Catalysis Today</searchLink>. Jan2024, Vol. 425, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Metal+cyanides%22">Metal cyanides</searchLink><br /><searchLink fieldCode="DE" term="%22Metal+catalysts%22">Metal catalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Polyethers%22">Polyethers</searchLink><br /><searchLink fieldCode="DE" term="%22Catalyst+synthesis%22">Catalyst synthesis</searchLink><br /><searchLink fieldCode="DE" term="%22Polyols%22">Polyols</searchLink><br /><searchLink fieldCode="DE" term="%22Ethylene+carbonates%22">Ethylene carbonates</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: We investigated various linear carbonates, including dimethyl carbonate and diethyl carbonate, and cyclic carbonates such as ethylene carbonate, propylene carbonate (PC), butylene carbonate, and glycerol carbonate, as complexing agents (CAs) for the preparation of double metal cyanide (DMC) catalysts. The DMC catalysts bearing carbonate complexing agents exhibited good to excellent activities for the ring-opening polymerization of epoxides (turnover frequencies of up to 467 min−1) and the copolymerization of epoxides and CO 2 , producing polyether polyols with moderate molecular weights (1700–9700 g mol−1), narrow polydispersity indexes (1.1–1.2), very low unsaturation values (0.002–0.009), and low viscosities (438 −997 cP). The DMC catalyst bearing PC also afforded linear and branched polycarbonate polyols in high yields (up to 83%) and carbonate contents (up to 36 mol%). Density functional theory calculations were also performed to understand the effect of the CAs on the structural properties and activities of the corresponding DMC catalysts. [Display omitted] • A green and viable procedure for preparing double metal cyanide (DMC) catalyst are developed. • The effect of cyclic carbonates on the structure and activity of DMC catalysts is investigated. • DMC catalysts bearing cyclic carbonates show excellent activities for the polymerization of various epoxides. • The resultant polyether polyols have strict "head-to-tail" regiosequences with narrow distribution and very low unsaturation. • DMC catalyst produces linear and branched polycarbonate polyols with high yield and carbonate contents. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Catalysis Today is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.cattod.2023.114319
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      – Code: eng
        Text: English
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        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Metal cyanides
        Type: general
      – SubjectFull: Metal catalysts
        Type: general
      – SubjectFull: Polyethers
        Type: general
      – SubjectFull: Catalyst synthesis
        Type: general
      – SubjectFull: Polyols
        Type: general
      – SubjectFull: Ethylene carbonates
        Type: general
    Titles:
      – TitleFull: Organic carbonates as green and sustainable complexing agents for double metal cyanide catalysts for the synthesis of polyether and poly(ether-carbonate) polyols.
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            NameFull: Tran, Chinh Hoang
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            NameFull: Jang, Han Byeol
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            NameFull: Moon, Byeong-ryeol
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            NameFull: Lee, Eun-gyeong
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            NameFull: Choi, Ha-kyung
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            – D: 01
              M: 01
              Text: Jan2024
              Type: published
              Y: 2024
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              Value: 425
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            – TitleFull: Catalysis Today
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