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Kamavichanurat S, Jampakaew K, Hormnirun P. Controlled and effective ring-opening (co)polymerization of rac-lactide, ε-caprolactone and ε-decalactone by β-pyrimidyl enolate aluminum complexes. Polym Chem 2023. [DOI: 10.1039/d3py00036b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
A series of β-pyrimidyl enolate aluminum complexes (1–6) were found to promote controlled and living ROP of rac-LA, ε-CL, and ε-DL. Six well-defined diblock copolymers and the perfect random copolymer poly(l-LA-r-CL) were successfully synthesized.
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2
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Zabalov MV, Mankaev BN, Egorov MP, Karlov SS. The Novel Gallium Aminobisphenolate Initiator of the Ring-Opening Copolymerization of L-Lactide and ε-Caprolactone: A Computational Study. Int J Mol Sci 2022; 23:ijms232415523. [PMID: 36555162 PMCID: PMC9779187 DOI: 10.3390/ijms232415523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/29/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022] Open
Abstract
Density functional theory (DFT) simulations of ring-opening copolymerization of ε-caprolactone (CL) and L-lactide (LA) in presence of novel gallium complex on aminobis (phenolate) ligand are conducted. The initial steps of polymerization of CL and LA as well as the first steps of propagation which led to LGa-LA-LA-OMe, LGa-LA-CL-OMe, LGa-CL-LA-OMe, or LGa-CL-CL-OMe derivatives have been analyzed in detail. According to these data, the studied catalyst is a rare example of a catalyst in which, during copolymerization, the polymerization of CL should proceed faster than LA. Thus, we predict the formation of a mainly block copolymer poly(CL-block-LA) using this catalyst.
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Affiliation(s)
- Maxim V. Zabalov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Science, 119991 Moscow, Russia
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Badma N. Mankaev
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Science, 119991 Moscow, Russia
- Chemistry Department, Moscow State University, 119991 Moscow, Russia
| | - Mikhail P. Egorov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Science, 119991 Moscow, Russia
| | - Sergey S. Karlov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Science, 119991 Moscow, Russia
- Chemistry Department, Moscow State University, 119991 Moscow, Russia
- Correspondence:
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3
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Nifant’ev I, Komarov P, Ovchinnikova V, Kiselev A, Minyaev M, Ivchenko P. Comparative Experimental and Theoretical Study of Mg, Al and Zn Aryloxy Complexes in Copolymerization of Cyclic Esters: The Role of the Metal Coordination in Formation of Random Copolymers. Polymers (Basel) 2020; 12:E2273. [PMID: 33023256 PMCID: PMC7600584 DOI: 10.3390/polym12102273] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 09/29/2020] [Accepted: 09/30/2020] [Indexed: 11/16/2022] Open
Abstract
Homogeneity of copolymers is a general problem of catalytic coordination polymerization. In ring-opening polymerization of cyclic esters, the rational design of the catalyst is generally applied to solve this problem by the equalization of the reactivities of comonomers-however, it often leads to a reduction of catalytic activity. In the present paper, we studied the catalytic behavior of BnOH-activated complexes (ВНТ)Mg(THF)2nBu (1), (ВНТ)2AlMe (2) and [(ВНТ)ZnEt]2 (3), based on 2,6-di-tert-butyl-4-methylphenol (BHT-H) in homo- and copolymerization of L-lactide (lLA) and ε-caprolactone (εCL). Even at 1:5 lLA/εCL ratio Mg complex 1 catalyzed homopolymerization of lLA without involving εCL to the formation of the polymer backbone. On the contrary, Zn complex 3 efficiently catalyzed random lLA/εCL copolymerization; the presence of mono-lactate subunits in the copolymer chain clearly pointed to the transesterification mechanism of copolymer formation. Both epimerization and transesterification side processes were analyzed using the density functional theory (DFT) modeling that confirmed the qualitative difference in catalytic behavior of 1 and 3: Mg and Zn complexes demonstrated different types of preferable coordination on the PLA chain (k2 and k3, respectively) with the result that complex 3 catalyzed controlled εCL ROP/PLA transesterification, providing the formation of lLA/εCL copolymers that contain mono-lactate fragments separated by short oligo(εCL) chains. The best results in the synthesis of random lLA/εCL copolymers were obtained during experiments on transesterification of commercially available PLLA, the applicability of 3/BnOH catalyst in the synthesis of random copolymers of εCL with methyl glycolide, ethyl ethylene phosphonate and ethyl ethylene phosphate was also demonstrated.
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Affiliation(s)
- Ilya Nifant’ev
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1–3, 119991 Moscow, Russia
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, Leninsky Avenue 29, 119991 Moscow, Russia; (P.K.); (V.O.); (A.K.); (M.M.)
- Faculty of Chemistry, National Research University Higher School of Economics, Miasnitskaya Str. 20, 101000 Moscow, Russia
| | - Pavel Komarov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, Leninsky Avenue 29, 119991 Moscow, Russia; (P.K.); (V.O.); (A.K.); (M.M.)
| | - Valeriya Ovchinnikova
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, Leninsky Avenue 29, 119991 Moscow, Russia; (P.K.); (V.O.); (A.K.); (M.M.)
| | - Artem Kiselev
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, Leninsky Avenue 29, 119991 Moscow, Russia; (P.K.); (V.O.); (A.K.); (M.M.)
- Faculty of Chemistry, National Research University Higher School of Economics, Miasnitskaya Str. 20, 101000 Moscow, Russia
| | - Mikhail Minyaev
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, Leninsky Avenue 29, 119991 Moscow, Russia; (P.K.); (V.O.); (A.K.); (M.M.)
- N.D. Zelinsky Institute of Organic Chemistry RAS, Leninsky pr. 47, 119991 Moscow, Russia
| | - Pavel Ivchenko
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1–3, 119991 Moscow, Russia
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, Leninsky Avenue 29, 119991 Moscow, Russia; (P.K.); (V.O.); (A.K.); (M.M.)
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Shao J, Zhou H, Wang Y, Luo Y, Yao Y. Lanthanum complexes stabilized by a pentadentate Schiff-base ligand: synthesis, characterization, and reactivity in statistical copolymerization of ε-caprolactone and l-lactide. Dalton Trans 2020; 49:5842-5850. [PMID: 32301451 DOI: 10.1039/d0dt00179a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Developing catalysts that are capable of catalyzing the copolymerization of ε-caprolactone and l-lactide to give random CL/LA copolymers is of great importance. One-pot reaction of La[N(SiMe3)2]3 with 1 equiv. of LH2 (LH2 = NH(CH2CH2N[double bond, length as m-dash]CHC6H2-3,5-tBu2-2-OH)2) in THF at room temperature, followed by protolysis with one equivalent amount of ROH (R = C6H2-2,6-tBu2-4-CH3, tBu, iPr, Bn, and Et) at 60 °C gave the mono-Schiff-base-ligated lanthanum aryloxide complex LLa(OC6H2-2,6-tBu2-4-CH3)(THF) (1), and lanthanum alkyloxide complexes LLaOtBu(THF) (2), [LLaOiPr]2 (3), [LLaOBn]2 (4), and [LLaOEt]2 (5) in 59-69% isolated yields. These lanthanum complexes were capable of initiating the homopolymerization of l-lactide and rac-lactide with extremely high activity, and the copolymerization of ε-caprolactone (ε-CL) and l-lactide (l-LA) to give statistical CL/LA copolymers via a transesterification reaction.
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Affiliation(s)
- Jingjing Shao
- College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Suzhou 215123, P. R. China.
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Jehanno C, Mezzasalma L, Sardon H, Ruipérez F, Coulembier O, Taton D. Benzoic Acid as an Efficient Organocatalyst for the Statistical Ring-Opening Copolymerization of ε-Caprolactone and L-Lactide: A Computational Investigation. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01853] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Coralie Jehanno
- POLYMAT, University of the Basque Country UPV/EHU, Joxe Mari Korta Center, Avda. Tolosa 72, 20018 Donostia-San Sebastián, Spain
| | - Leila Mezzasalma
- Center of Innovation and Research in Materials and Polymers (CIRMAP), Laboratory of Polymeric and Composite Materials, University of Mons, 23 Place du Parc, Mons B-7000, Belgium
- Laboratoire de Chimie des Polymères Organiques (LCPO), CNRS, ENSCBP University of Bordeaux, UMR 5629, 16, av. Pey Berland 33607 Cedex, Pessac, France
| | - Haritz Sardon
- POLYMAT, University of the Basque Country UPV/EHU, Joxe Mari Korta Center, Avda. Tolosa 72, 20018 Donostia-San Sebastián, Spain
| | - Fernando Ruipérez
- POLYMAT, University of the Basque Country UPV/EHU, Joxe Mari Korta Center, Avda. Tolosa 72, 20018 Donostia-San Sebastián, Spain
| | - Olivier Coulembier
- Center of Innovation and Research in Materials and Polymers (CIRMAP), Laboratory of Polymeric and Composite Materials, University of Mons, 23 Place du Parc, Mons B-7000, Belgium
| | - Daniel Taton
- Laboratoire de Chimie des Polymères Organiques (LCPO), CNRS, ENSCBP University of Bordeaux, UMR 5629, 16, av. Pey Berland 33607 Cedex, Pessac, France
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Chumsaeng P, Haesuwannakij S, Virachotikul A, Phomphrai K. Random copolymerization of
l
‐lactide and ε‐caprolactone by aluminum alkoxide complexes supported by N
2
O
2
bis(phenolate)‐amine ligands. ACTA ACUST UNITED AC 2019. [DOI: 10.1002/pola.29425] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Phongnarin Chumsaeng
- Department of Chemistry, Faculty of ScienceMahidol University Ratchathewi, Bangkok 10400 Thailand
| | - Setsiri Haesuwannakij
- Department of Materials Science and Engineering, School of Molecular Science and EngineeringVidyasirimedhi Institute of Science and Technology (VISTEC) Wang Chan, Rayong 21210 Thailand
| | - Arnut Virachotikul
- Department of Materials Science and Engineering, School of Molecular Science and EngineeringVidyasirimedhi Institute of Science and Technology (VISTEC) Wang Chan, Rayong 21210 Thailand
| | - Khamphee Phomphrai
- Department of Materials Science and Engineering, School of Molecular Science and EngineeringVidyasirimedhi Institute of Science and Technology (VISTEC) Wang Chan, Rayong 21210 Thailand
- Research Network of NANOTEC‐VISTEC on Nanotechnology for EnergyVidyasirimedhi Institute of Science and Technology Wang Chan, Rayong 21210 Thailand
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Mezzasalma L, Harrisson S, Saba S, Loyer P, Coulembier O, Taton D. Bulk Organocatalytic Synthetic Access to Statistical Copolyesters from l-Lactide and ε-Caprolactone Using Benzoic Acid. Biomacromolecules 2019; 20:1965-1974. [PMID: 30964279 DOI: 10.1021/acs.biomac.9b00190] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The development of synthetic strategies to produce statistical copolymers based on l-lactide (l-LA) and ε-caprolactone (CL), denoted as P(LA- stat-CL), remains highly challenging in polymer chemistry. This is due to the differing reactivity of the two monomers during their ring-opening copolymerization (ROcP). Yet, P(LA- stat-CL) materials are highly sought after as they combine the properties of both polylactide (PLA) and poly(ε-caprolactone) (PCL). Here, benzoic acid (BA), a naturally occurring, cheap, readily recyclable, and thermally stable weak acid, is shown to trigger the organocatalyzed ring-opening copolymerization (OROcP) of l-LA and CL under solvent-free conditions at 155 °C, in presence of various alcohols as initiators, with good control over molar masses and dispersities (1.11 < Đ < 1.35) of the resulting copolyesters. Various compositions can be achieved, and the formation of statistical compounds is shown through characterization by 1H, 13C, and diffusion ordered spectroscopy NMR spectroscopies and by differential scanning calorimetry, as well as through the determination of reactivity ratios ( rLA = 0.86, rCL = 0.86), using the visualization of the sum of squared residuals space method. Furthermore, this BA-OROcP process can be exploited to access metal-free PLA- b-P(LA- stat-CL)- b-PLA triblock copolymers, using a diol as an initiator. Finally, residual traces of BA remaining in P(LA- stat-CL) copolymers (<0.125 mol %) do not show any cytotoxicity toward hepatocyte-like HepaRG cells, demonstrating the safety of this organic catalyst.
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Affiliation(s)
- Leila Mezzasalma
- Center of Innovation and Research in Materials and Polymers (CIRMAP), Laboratory of Polymeric and Composites Materials , University of Mons , 23 Place du Parc , Mons B-7000 , Belgium.,Laboratoire de Chimie des Polymères Organiques (LCPO) , CNRS, ENSCBP University of Bordeaux, UMR 5629 , 16, av. Pey Berland , 33607 Pessac Cedex, France
| | - Simon Harrisson
- Laboratoire des IMRCP , Université de Toulouse, CNRS, Université Paul Sabatier, UMR 5623 , 118 route de Narbonne , 31062 Toulouse Cedex 9, France
| | - Saad Saba
- Inserm, INRA, Univ Rennes, Institut NUMECAN (Nutrition Metabolisms and Cancer) UMR-A 1341, UMR-S 1241 , F-35000 Rennes , France
| | - Pascal Loyer
- Inserm, INRA, Univ Rennes, Institut NUMECAN (Nutrition Metabolisms and Cancer) UMR-A 1341, UMR-S 1241 , F-35000 Rennes , France
| | - Olivier Coulembier
- Center of Innovation and Research in Materials and Polymers (CIRMAP), Laboratory of Polymeric and Composites Materials , University of Mons , 23 Place du Parc , Mons B-7000 , Belgium
| | - Daniel Taton
- Laboratoire de Chimie des Polymères Organiques (LCPO) , CNRS, ENSCBP University of Bordeaux, UMR 5629 , 16, av. Pey Berland , 33607 Pessac Cedex, France
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Hua J, Lv Q, Wang Z, Liu K, Ling J. Ring-opening polymerization of l-lactide catalyzed by a novel molybdenum-based catalytic system. IRANIAN POLYMER JOURNAL 2018. [DOI: 10.1007/s13726-018-0612-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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9
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Stirling E, Champouret Y, Visseaux M. Catalytic metal-based systems for controlled statistical copolymerisation of lactide with a lactone. Polym Chem 2018. [DOI: 10.1039/c8py00310f] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A comprehensive survey of the recent developments of metal-based catalysts for the ROcoP of lactide with another lactone is presented.
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Affiliation(s)
- E. Stirling
- UMR 8181 – UCCS – Unité de Catalyse et de Chimie du Solide
- ENSCL
- Centrale Lille
- Univ. Artois
- Univ. Lille
| | - Y. Champouret
- UMR 8181 – UCCS – Unité de Catalyse et de Chimie du Solide
- ENSCL
- Centrale Lille
- Univ. Artois
- Univ. Lille
| | - M. Visseaux
- UMR 8181 – UCCS – Unité de Catalyse et de Chimie du Solide
- ENSCL
- Centrale Lille
- Univ. Artois
- Univ. Lille
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10
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Copolymer of lactide and ε-caprolactone catalyzed by bimetallic Schiff base aluminum complexes. Sci China Chem 2016. [DOI: 10.1007/s11426-016-0118-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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11
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Plichta A, Jaskulski T, Lisowska P, Macios K, Kundys A. Elastic polyesters improved by ATRP as reactive epoxy-modifiers of PLA. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.03.055] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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