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Rentero C, Damián J, Medel A, Fernández-Millán M, Rusconi Y, Talarico G, Cuenca T, Sessini V, Mosquera MEG. Ring-Opening Polymerization of L-Lactide Catalyzed by Potassium-Based Complexes: Mechanistic Studies. Polymers (Basel) 2022; 14:polym14152982. [PMID: 35893946 PMCID: PMC9329769 DOI: 10.3390/polym14152982] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 07/18/2022] [Accepted: 07/20/2022] [Indexed: 02/05/2023] Open
Abstract
Two non-toxic potassium compounds, 1 and 2, with a commercial oximate ligand have been prepared and fully spectroscopically characterized. Their activity as catalysts for the ring-opening polymerization (ROP) process of LLA has been studied, showing that they are extremely active and able to polymerize the monomer in a few minutes. For derivative 2, the presence of a crown ether in the potassium coordination sphere affects the nuclearity of the compound and consequently its solubility, with both aspects having an influence in the polymerization process. Detailed studies of the polymerization mechanism have been performed, and an unusual anionic mechanism was observed in absence of a co-initiator. Indeed, the monomer deprotonation generates a lactide enolate, which initiates the polymerization propagation. On the contrary, when a 1:1 ratio of cat:BnOH is used, a mixture of mechanisms is observed, the anionic mechanism and the activated monomer one, while from a cat:BnOH ratio of 1:2 and over, only the activated monomer mechanism is observed.
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Affiliation(s)
- Christian Rentero
- Department of Organic and Inorganic Chemistry, Institute of Chemical Research “Andrés M. del Río” (IQAR), Universidad de Alcalá, Campus Universitario, 28871 Madrid, Spain; (C.R.); (J.D.); (A.M.); (M.F.-M.); (T.C.)
| | - Jesús Damián
- Department of Organic and Inorganic Chemistry, Institute of Chemical Research “Andrés M. del Río” (IQAR), Universidad de Alcalá, Campus Universitario, 28871 Madrid, Spain; (C.R.); (J.D.); (A.M.); (M.F.-M.); (T.C.)
| | - Asier Medel
- Department of Organic and Inorganic Chemistry, Institute of Chemical Research “Andrés M. del Río” (IQAR), Universidad de Alcalá, Campus Universitario, 28871 Madrid, Spain; (C.R.); (J.D.); (A.M.); (M.F.-M.); (T.C.)
| | - María Fernández-Millán
- Department of Organic and Inorganic Chemistry, Institute of Chemical Research “Andrés M. del Río” (IQAR), Universidad de Alcalá, Campus Universitario, 28871 Madrid, Spain; (C.R.); (J.D.); (A.M.); (M.F.-M.); (T.C.)
| | - Yolanda Rusconi
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, Via Cintia, 80124 Napoli, Italy; (Y.R.); (G.T.)
| | - Giovanni Talarico
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, Via Cintia, 80124 Napoli, Italy; (Y.R.); (G.T.)
| | - Tomás Cuenca
- Department of Organic and Inorganic Chemistry, Institute of Chemical Research “Andrés M. del Río” (IQAR), Universidad de Alcalá, Campus Universitario, 28871 Madrid, Spain; (C.R.); (J.D.); (A.M.); (M.F.-M.); (T.C.)
| | - Valentina Sessini
- Department of Organic and Inorganic Chemistry, Institute of Chemical Research “Andrés M. del Río” (IQAR), Universidad de Alcalá, Campus Universitario, 28871 Madrid, Spain; (C.R.); (J.D.); (A.M.); (M.F.-M.); (T.C.)
- Correspondence: (V.S.); (M.E.G.M.)
| | - Marta E. G. Mosquera
- Department of Organic and Inorganic Chemistry, Institute of Chemical Research “Andrés M. del Río” (IQAR), Universidad de Alcalá, Campus Universitario, 28871 Madrid, Spain; (C.R.); (J.D.); (A.M.); (M.F.-M.); (T.C.)
- Correspondence: (V.S.); (M.E.G.M.)
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2
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Dong X, Robinson JR. The versatile roles of neutral donor ligands in tuning catalyst performance for the ring-opening polymerization of cyclic esters. NEW J CHEM 2022. [DOI: 10.1039/d1nj02694a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The use of neutral donor ligands is an effective strategy to modify catalyst structure and performance in the synthesis of sustainable polymers through the ring-opening polymerization (ROP) of cyclic esters.
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Affiliation(s)
- Xiang Dong
- Department of Chemistry, Brown University, 324 Brook St. Providence, RI 02912, USA
| | - Jerome R. Robinson
- Department of Chemistry, Brown University, 324 Brook St. Providence, RI 02912, USA
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3
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Synthesis and characterization of poly(ɛ-caprolactone-b-acryloyl chloride-g-vinyl chloride) ladder-type copolymer by "click" chemistry. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02593-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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4
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D'Amato A, Schettini R, Pierri G, Izzo I, Grisi F, Tedesco C, De Riccardis F, Costabile C. Synthesis and characterization of new Na + complexes of N-benzyl cyclic peptoids and their role in the ring opening polymerization of l-lactide. NEW J CHEM 2021. [DOI: 10.1039/d0nj05931e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Na+ complexes of cyclic peptoid were employed for the first time as catalyst for the l-lactide polymerization.
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Affiliation(s)
- Assunta D'Amato
- Department of Chemistry and Biology “A. Zambelli”
- University of Salerno
- Fisciano (SA)
- Italy
| | - Rosaria Schettini
- Department of Chemistry and Biology “A. Zambelli”
- University of Salerno
- Fisciano (SA)
- Italy
| | - Giovanni Pierri
- Department of Chemistry and Biology “A. Zambelli”
- University of Salerno
- Fisciano (SA)
- Italy
| | - Irene Izzo
- Department of Chemistry and Biology “A. Zambelli”
- University of Salerno
- Fisciano (SA)
- Italy
| | - Fabia Grisi
- Department of Chemistry and Biology “A. Zambelli”
- University of Salerno
- Fisciano (SA)
- Italy
| | - Consiglia Tedesco
- Department of Chemistry and Biology “A. Zambelli”
- University of Salerno
- Fisciano (SA)
- Italy
| | - Francesco De Riccardis
- Department of Chemistry and Biology “A. Zambelli”
- University of Salerno
- Fisciano (SA)
- Italy
| | - Chiara Costabile
- Department of Chemistry and Biology “A. Zambelli”
- University of Salerno
- Fisciano (SA)
- Italy
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5
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Potassium N-arylbenzimidates as readily accessible and benign (pre)catalysts for the ring opening polymerization of ε-CL and L-LA. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.111280] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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Gao J, Zhu D, Zhang W, Solan GA, Ma Y, Sun WH. Recent progress in the application of group 1, 2 & 13 metal complexes as catalysts for the ring opening polymerization of cyclic esters. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00855a] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This review focuses on recent developments concerned with the use of well-defined main group complexes as (pre-)catalysts for the ROP of cyclic esters to give aliphatic polyesters; factors influencing catalytic activity, selectivity and polymer properties are all discussed.
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Affiliation(s)
- Jiahao Gao
- Beijing Key Laboratory of Clothing Materials R&D and Assessment
- Beijing Engineering Research Center of Textile Nanofiber
- School of Materials Science and Engineering
- Beijing Institute of Fashion Technology
- Beijing 100029
| | - Dongzhi Zhu
- Beijing Key Laboratory of Clothing Materials R&D and Assessment
- Beijing Engineering Research Center of Textile Nanofiber
- School of Materials Science and Engineering
- Beijing Institute of Fashion Technology
- Beijing 100029
| | - Wenjuan Zhang
- Beijing Key Laboratory of Clothing Materials R&D and Assessment
- Beijing Engineering Research Center of Textile Nanofiber
- School of Materials Science and Engineering
- Beijing Institute of Fashion Technology
- Beijing 100029
| | - Gregory A. Solan
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Yanping Ma
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
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Öztürk T, Kılıçlıoğlu A, Savaş B, Hazer B. Synthesis and characterization of poly(ɛ-caprolactone-co-ethylene glycol) star-type amphiphilic copolymers by “click” chemistry and ring-opening polymerization. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2018. [DOI: 10.1080/10601325.2018.1481344] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Temel Öztürk
- Department of Chemistry, Faculty of Arts and Sciences, Giresun University, Giresun, Turkey
| | - Ali Kılıçlıoğlu
- Department of Chemistry, Faculty of Arts and Sciences, Giresun University, Giresun, Turkey
| | | | - Baki Hazer
- Department of Chemistry, Faculty of Arts and Sciences, Bülent Ecevit University, Zonguldak, Turkey
- Department of Aircraft Airframe Engine Maintenance, Kapadokya University, Ürgüp, Turkey
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