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Palenzuela M, Mula E, Blanco C, Sessini V, Shakaroun RM, Li H, Guillaume SM, Mosquera MEG. Copolymerization of β-Butyrolactones into Functionalized Polyhydroxyalkanoates Using Aluminum Catalysts: Influence of the Initiator in the Ring-Opening Polymerization Mechanism. Macromol Rapid Commun 2024; 45:e2400091. [PMID: 38690992 DOI: 10.1002/marc.202400091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 04/22/2024] [Indexed: 05/03/2024]
Abstract
Within bioplastics, natural poly(3-hydroxybutyrate) (PHB) stands out as fully biocompatible and biodegradable, even in marine environments; however, its high isotacticity and crystallinity limits its mechanical properties and hence its applications. PHB can also be synthesized with different tacticities via a catalytic ring-opening polymerization (ROP) of rac-β-butyrolactone (BBL), paving the way to PHB with better thermomechanical and processability properties. In this work, the catalyst family is extended based on aluminum phenoxy-imine methyl catalyst [AlMeL2], that reveals efficient in the ROP of BBL, to the halogeno analogous complex [AlClL2]. As well, the impact on the ROP mechanism of different initiators is further explored with a particular focus in dimethylaminopyridine (DMAP), a hardly studied initiator for the ROP of BBL. A thorough mechanistic study is performed that evidences the presence of two concomitant DMAP-mediated mechanisms, that lead to either a DMAP or a crotonate end-capping group. Besides, in order to increase the possibilities of PHB post-polymerization functionalization, the introduction of a side-chain functionality is explored, establishing the copolymerization of BBL with β-allyloxymethylene propiolactone (BPLOAll), resulting in well-defined P(BBL-co-BPLOAll) copolymers.
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Affiliation(s)
- Miguel Palenzuela
- Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación en Química "Andrés M. del Río" (IQAR), Universidad de Alcalá, Campus Universitario, Alcalá de Henares, Madrid, 28871, Spain
| | - Esther Mula
- Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación en Química "Andrés M. del Río" (IQAR), Universidad de Alcalá, Campus Universitario, Alcalá de Henares, Madrid, 28871, Spain
| | - Carlos Blanco
- Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación en Química "Andrés M. del Río" (IQAR), Universidad de Alcalá, Campus Universitario, Alcalá de Henares, Madrid, 28871, Spain
| | - Valentina Sessini
- Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación en Química "Andrés M. del Río" (IQAR), Universidad de Alcalá, Campus Universitario, Alcalá de Henares, Madrid, 28871, Spain
| | - Rama M Shakaroun
- Univ. Rennes, CNRS, Institut des Sciences Chimiques de Rennes, UMR 6226, Rennes, F-35042, France
| | - Hui Li
- Univ. Rennes, CNRS, Institut des Sciences Chimiques de Rennes, UMR 6226, Rennes, F-35042, France
| | - Sophie M Guillaume
- Univ. Rennes, CNRS, Institut des Sciences Chimiques de Rennes, UMR 6226, Rennes, F-35042, France
| | - Marta E G Mosquera
- Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación en Química "Andrés M. del Río" (IQAR), Universidad de Alcalá, Campus Universitario, Alcalá de Henares, Madrid, 28871, Spain
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Westlie AH, Quinn EC, Parker CR, Chen EYX. Synthetic biodegradable polyhydroxyalkanoates (PHAs): Recent advances and future challenges. Prog Polym Sci 2022. [DOI: 10.1016/j.progpolymsci.2022.101608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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3
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Yue S, Bai T, Xu S, Shen T, Ling J, Ni X. Ring-Opening Polymerization of CO 2-Based Disubstituted δ-Valerolactone toward Sustainable Functional Polyesters. ACS Macro Lett 2021; 10:1055-1060. [PMID: 35549114 DOI: 10.1021/acsmacrolett.1c00341] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
3-Ethylidene-6-vinyltetrahydro-2H-pyran-2-one (EVL) is a disubstituent δ-lactone derived from CO2 and 1,3-butadiene. In this contribution, we report the ring-opening polymerization (ROP) of EVL with β-butyrolactone (BBL) as the comonomer catalyzed by scandium triflate [Sc(OTf)3]. The obtained polyester bearing active unsaturated bonds has the weight-average molecular weight (Mw) of 4.1 kg/mol, in which the EVL content is 38 mol % in accordance with the initial ratio of 40 mol %. The copolymers are characterized in detail and the cationic ROP mechanism has been confirmed by kinetic study, chain end analysis and density functional theory (DFT) calculation. The modification of the unsaturated bonds in EVL repeating units via the thio-ene click reaction with mercapto-ended polysarcosine polysarcosine yields the amphiphilic grafting polymers. It is a CO2 fixation approach toward the functional poly(EVL-r-BBL) that is promising as a degradable polyester precursor for adhesive or surface-coating materials.
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Affiliation(s)
- Sicong Yue
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Tianwen Bai
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Songyi Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ting Shen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jun Ling
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xufeng Ni
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
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Yang L, Zhang YY, Yang GW, Xie R, Wu GP. Controlled Ring-Opening Polymerization of β-Butyrolactone Via Bifunctional Organoboron Catalysts. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00250] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Li Yang
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yao-Yao Zhang
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Guan-Wen Yang
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Rui Xie
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Guang-Peng Wu
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
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Dong X, Robinson JR. The role of neutral donor ligands in the isoselective ring-opening polymerization of rac-β-butyrolactone. Chem Sci 2020; 11:8184-8195. [PMID: 34123089 PMCID: PMC8163396 DOI: 10.1039/d0sc03507f] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Isoenriched poly-3-hydroxybutyrate (P3HB) is a biodegradable material with properties similar to isotactic polypropylene, yet efficient routes to this material are lacking after 50+ years of extensive efforts in catalyst design. In this contribution, a novel lanthanum aminobisphenolate catalyst (1-La) can access isoenriched P3HB through the stereospecific ring-opening polymerization (ROP) of rac-β-butyrolactone (rac-BBL). Replacing the tethered donor group of a privileged supporting ligand with a non-coordinating benzyl substituent generates a catalyst whose reactivity and selectivity can be tuned with inexpensive achiral neutral donor ligands (e.g. phosphine oxides, OPR3). The 1-La/OPR3 (R = n-octyl, Ph) systems display high activity and are the most isoselective homogeneous catalysts for the ROP of rac-BBL to date (0 °C: Pm = 0.8, TOF ∼190 h−1). Combined reactivity and spectroscopic studies provide insight into the active catalyst structure and ROP mechanism. Both 1-La(TPPO)2 and a structurally related catalyst with a tethered donor group (2-Y) operate under chain-end stereocontrol; however, 2-RE favors formation of P3HB with opposite tacticity (syndioenriched) and its ROP activity and selectivity are totally unaffected by added neutral donor ligands. Our studies uncover new roles for neutral donor ligands in stereospecific ROP, including suppression of chain-scission events, and point to new opportunities for catalyst design. Simple achiral neutral donor ligands modify catalyst structure and function to enable access to isoenriched poly-3-hydroxybutyrate, a biodegradable material with properties similar to isotactic polypropylene.![]()
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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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Kiriratnikom J, Robert C, Guérineau V, Venditto V, Thomas CM. Stereoselective Ring-Opening (Co)polymerization of β-Butyrolactone and ε-Decalactone Using an Yttrium Bis(phenolate) Catalytic System. Front Chem 2019; 7:301. [PMID: 31192185 PMCID: PMC6541034 DOI: 10.3389/fchem.2019.00301] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 04/15/2019] [Indexed: 01/10/2023] Open
Abstract
An effective route for ring-opening copolymerization of β-butyrolactone (BBL) with ε-decalactone (ε-DL) is reported. Microstructures of the block copolymers characterized by 13C NMR spectroscopy revealed syndiotactic-enriched poly(3-hydroxybutyrate) (PHB) blocks. Several di- and triblock copolymers (PDL-b-PHB and PDL-b-PHB-b-PDL, respectively) were successfully synthesized by sequential addition of the monomers using (salan)Y(III) complexes as catalysts. The results from MALDI-ToF mass spectrometry confirmed the presence of the copolymers. Moreover, thermal properties of the block copolymers were also investigated and showed that the microphase separation of PDL-b-PHB copolymers into PHB- and PDL-rich domains has an impact on the glass transition temperatures of both blocks.
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Affiliation(s)
- Jiraya Kiriratnikom
- Department of Chemistry, Faculty of Science, Mahidol University, Bangkok, Thailand
- Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong, Thailand
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, Paris, France
| | - Carine Robert
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, Paris, France
| | - Vincent Guérineau
- CNRS UPR2301, Institut de Chimie des Substances Naturelles, Université Paris-Sud, Université Paris-Saclay, Gif-sur-Yvette Cedex, France
| | - Vincenzo Venditto
- INSTM Research Unit, Department of Chemistry and Biology A. Zambelli, University of Salerno, Fisciano, Italy
| | - Christophe M. Thomas
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, Paris, France
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Cairns SA, Schultheiss A, Shaver MP. A broad scope of aliphatic polyesters prepared by elimination of small molecules from sustainable 1,3-dioxolan-4-ones. Polym Chem 2017. [DOI: 10.1039/c7py00254h] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
We report a family of monomers that are built from renewable resources and use the elimination of small molecules to access aliphatic polyesters, circumventing challenging monomer syntheses to make these functionalism polymers.
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Briand GG, Cairns SA, Decken A, Dickie CM, Kostelnik TI, Shaver MP. Strained metal bonding environments in methylindium dithiolates and their reactivity as initiators for the ring-opening polymerization of cyclic esters. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.01.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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9
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Chans GM, Nieto-Camacho A, Ramírez-Apan T, Hernández-Ortega S, Álvarez-Toledano C, Gómez E. Synthetic, Spectroscopic, Crystallographic, and Biological Studies of Seven-Coordinated Diorganotin(IV) Complexes Derived from Schiff Bases and Pyridinic Carboxylic Acids. Aust J Chem 2016. [DOI: 10.1071/ch15344] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The synthesis and characterisation of diorganotin(iv) monomeric derivatives of pyridine Schiff bases and pyridinic carboxylic acids are reported. All complexes were characterised by mass spectrometry, elemental analyses, IR spectra, and multinuclear NMR analyses. Among them, complexes 5a, 5d, 5e, 5g, and 6a were also confirmed by X-ray crystallography diffraction analyses, which led to establishing that the tin atom is seven-coordinated and has a distorted pentagonal–bipyramidal coordination environment in the solid state and also revealed that both ligands occupy the equatorial positions and the organic substituents the axial positions. The antioxidant activity of the synthetic derivatives towards 1,1-diphenyl-2-picrylhydrazyl radical (DPPH) as well as the thiobarbituric acid reactive substances (TBARS) assay were determined, and were compared with standard antioxidants, showing a dose-dependent activity in both cases. A prominent response was obtained depending on the substituent. The anti-inflammatory activity was also evaluated on a 12-O-tetradecanoylphorbol-13-acetate (TPA) model of induced acute inflammation. The results of the biological tests are discussed in terms of structural characteristics.
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Belibel R, Azzouz I, Barbaud C. Synthesis and characterizations of new isotactic homopolyesters, statistical and block copolyesters derived of poly((S
)-3,3-dimethylmalic acid) via the lactone route. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27997] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Rima Belibel
- INSERM U1148, Laboratory for Vascular Translational Science (LVTS); Institut Galilée, Université Paris 13; Sorbonne Paris Cité, 99 Avenue Jean-Baptiste Clément Villetaneuse F-93430 France
| | - Imadeddine Azzouz
- Laboratory ESYCOM EA2552; Université Paris-Est Marne La Vallée (UPEM); ESIEE Paris, 2 Boulevard Blaise Pascal Noisy-le-Grand F-93162 France
| | - Christel Barbaud
- INSERM U1148, Laboratory for Vascular Translational Science (LVTS); Institut Galilée, Université Paris 13; Sorbonne Paris Cité, 99 Avenue Jean-Baptiste Clément Villetaneuse F-93430 France
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11
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Belibel R, Barbaud C. Synthesis of new optically active α,α′,β-trisubstituted-β-lactones as monomers for stereoregular biopolyesters. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27724] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Rima Belibel
- INSERM U1148, Laboratory for Vascular Translational Science (LVTS), Institut Galilée, Université Paris 13; Sorbonne Paris Cité, 99 Avenue Jean-Baptiste Clément Villetaneuse F-93430 France
| | - Christel Barbaud
- INSERM U1148, Laboratory for Vascular Translational Science (LVTS), Institut Galilée, Université Paris 13; Sorbonne Paris Cité, 99 Avenue Jean-Baptiste Clément Villetaneuse F-93430 France
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Korlyukov AA, Shmatkova NV, Seifullina II, Vologzhanina AV. Understanding the structure of salicyl hydrazone metallocomplexes: crystal structure, AIM and Hirshfeld surface analysis of trichloro-(N-salicylidenebenzoylhydrazinato-N,O,O′)-tin(IV). Struct Chem 2015. [DOI: 10.1007/s11224-015-0612-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Gagliardi M, Di Michele F, Mazzolai B, Bifone A. Chemical synthesis of a biodegradable PEGylated copolymer from ε-caprolactone and γ-valerolactone: evaluation of reaction and functional properties. JOURNAL OF POLYMER RESEARCH 2015. [DOI: 10.1007/s10965-015-0661-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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MacDonald JP, Parker MP, Greenland BW, Hermida-Merino D, Hamley IW, Shaver MP. Tuning thermal properties and microphase separation in aliphatic polyester ABA copolymers. Polym Chem 2015. [DOI: 10.1039/c4py01459f] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Four alkyl substituted β-lactones were investigated in ring opening polymerisation to produce a family of poly(3-hydroxyalkanoate)s and their block copolymers.
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Affiliation(s)
| | - M. P. Parker
- School of Chemistry
- Pharmacy and Food Biosciences
- University of Reading
- Berkshire RG6 6AD
- UK
| | - B. W. Greenland
- School of Chemistry
- Pharmacy and Food Biosciences
- University of Reading
- Berkshire RG6 6AD
- UK
| | - D. Hermida-Merino
- DUBBLE @ ESRF – The European Synchrotron
- 38043 Grenoble Cedex 9
- France
| | - I. W. Hamley
- School of Chemistry
- Pharmacy and Food Biosciences
- University of Reading
- Berkshire RG6 6AD
- UK
| | - M. P. Shaver
- School of Chemistry
- University of Edinburgh
- Edinburgh
- UK
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Huang M, Kireenko MM, Lermontova EK, Churakov AV, Oprunenko YF, Zaitsev KV, Sorokin D, Harms K, Sundermeyer J, Zaitseva GS, Karlov SS. Novel Stannylenes Stabilized with Diethylenetriamido and Related Amido Ligands: Synthesis, Structure, and Chemical Properties. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201200552] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Fang J, Tschan MJL, Roisnel T, Trivelli X, Gauvin RM, Thomas CM, Maron L. Yttrium catalysts for syndioselective β-butyrolactone polymerization: on the origin of ligand-induced stereoselectivity. Polym Chem 2013. [DOI: 10.1039/c2py20590d] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Cross ED, Allan LEN, Decken A, Shaver MP. Aluminum salen and salan complexes in the ring-opening polymerization of cyclic esters: Controlled immortal and copolymerization ofrac-β-butyrolactone andrac-lactide. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26476] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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18
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Korlyukov AA, Khrustalev VN, Vologzhanina AV, Lyssenko KA, Nechaev MS, Antipin MY. Bis(μ2-2-(dimethylamino)ethoxo-N,O,O)-di(phenolato-O)ditin(II): a high-resolution single-crystal X-ray diffraction and quantum chemical study. ACTA CRYSTALLOGRAPHICA SECTION B: STRUCTURAL SCIENCE 2011; 67:315-23. [DOI: 10.1107/s0108768111022695] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2011] [Accepted: 06/12/2011] [Indexed: 11/10/2022]
Abstract
Experimental and calculated electron density functions ρ(r) of the title compound in the crystal were obtained. These were compared with ρ(r) for an isolated dimer. Application of the `Atoms in Molecules' theory allowed the visualization of the electron lone pair (Lp) of tin(II) and the calculation of some bond energies and all atomic charges. The stereochemical activity of the Lp was demonstrated and its volume was estimated to be approximately 10 Å3. The energies of N→Sn and Sn—O bonds were found to be 13–18 and 25–52 kJ mol−1. According to the experimental, AM05-PW and PBE0/6-311G(d,p) calculation data, µ2-2-(dimethylamino)ethoxoate accepts 0.68, 0.45 and 0.40 e from the Sn atom. Using the example of µ2-2-(dimethylamino)ethoxoates and complexes of bis(n-butyl)tin(IV) it was demonstrated that the more screened the Sn atom, the better the catalytic activity of its complex in polyurethane synthesis.
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Brulé E, Gaillard S, Rager MN, Roisnel T, Guérineau V, Nolan SP, Thomas CM. Polymerization of Racemic β-Butyrolactone Using Gold Catalysts: A Simple Access to Biodegradable Polymers. Organometallics 2011. [DOI: 10.1021/om200271q] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Emilie Brulé
- Chimie ParisTech, UMR CNRS 7223, 11 Rue Pierre et Marie Curie, 75005 Paris, France
- Université Pierre et Marie Curie, 4 Place Jussieu, 75005 Paris, France
| | - Sylvain Gaillard
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, U.K
| | - Marie-Noëlle Rager
- NMR Facility, Chimie ParisTech, 11 Rue Pierre et Marie Curie, 75005 Paris, France
| | - Thierry Roisnel
- Centre de Diffractométrie X, Université de Rennes 1, 35042 Rennes, France
| | - Vincent Guérineau
- Institut de Chimie des Substances Naturelles (ICSN), Avenue de la Terrasse, 91198 Gif/Yvette, France
| | - Steven P. Nolan
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, U.K
| | - Christophe M. Thomas
- Chimie ParisTech, UMR CNRS 7223, 11 Rue Pierre et Marie Curie, 75005 Paris, France
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Guillaume C, Ajellal N, Carpentier JF, Guillaume SM. Boron-functionalized poly(3-hydroxybutyrate)s from hydroboration of poly(allyl-β-hydroxyalkanoate)s: Synthesis and insights into the microstructure. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.24502] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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22
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Peptu C, Nicolescu A, Peptu CA, Harabagiu V, Simionescu BC, Kowalczuk M. Mass spectrometry characterization of 3-OH butyrated β-cyclodextrin. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.24372] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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23
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Liu YC, Lin CH, Ko BT, Ho RM. Ring-opening polymerization of β-butyrolactone catalyzed by efficient magnesium and zinc complexes derived from tridentate anilido-aldimine ligand. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.24334] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Carpentier JF. Discrete Metal Catalysts for Stereoselective Ring-Opening Polymerization of Chiral Racemic β-Lactones. Macromol Rapid Commun 2010; 31:1696-705. [DOI: 10.1002/marc.201000114] [Citation(s) in RCA: 151] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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25
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Thomas CM. Stereocontrolled ring-opening polymerization of cyclic esters: synthesis of new polyester microstructures. Chem Soc Rev 2010; 39:165-73. [DOI: 10.1039/b810065a] [Citation(s) in RCA: 691] [Impact Index Per Article: 49.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ajellal N, Thomas CM, Carpentier JF. Functional syndiotactic poly(β-hydroxyalkanoate)s via stereoselective ring-opening copolymerization of rac
-β-butyrolactone and rac
-allyl-β-butyrolactone. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/pola.23418] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Ajellal N, Bouyahyi M, Amgoune A, Thomas CM, Bondon A, Pillin I, Grohens Y, Carpentier JF. Syndiotactic-Enriched Poly(3-hydroxybutyrate)s via Stereoselective Ring-Opening Polymerization of Racemic β-Butyrolactone with Discrete Yttrium Catalysts. Macromolecules 2009. [DOI: 10.1021/ma8022734] [Citation(s) in RCA: 133] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Noureddine Ajellal
- Organométalliques et Catalyse, UMR 6226 Sciences Chimiques de Rennes, Université de Rennes 1-CNRS, 35042 Rennes, France, RMN-Interactions Lipides Protéines, UMR 6026, Université de Rennes 1-CNRS, 35042 Rennes, France, and Laboratoire Polymères, Propriétés aux Interfaces et Composites, Université de Bretagne-Sud, 56325 Lorient, France
| | - Miloud Bouyahyi
- Organométalliques et Catalyse, UMR 6226 Sciences Chimiques de Rennes, Université de Rennes 1-CNRS, 35042 Rennes, France, RMN-Interactions Lipides Protéines, UMR 6026, Université de Rennes 1-CNRS, 35042 Rennes, France, and Laboratoire Polymères, Propriétés aux Interfaces et Composites, Université de Bretagne-Sud, 56325 Lorient, France
| | - Abderramane Amgoune
- Organométalliques et Catalyse, UMR 6226 Sciences Chimiques de Rennes, Université de Rennes 1-CNRS, 35042 Rennes, France, RMN-Interactions Lipides Protéines, UMR 6026, Université de Rennes 1-CNRS, 35042 Rennes, France, and Laboratoire Polymères, Propriétés aux Interfaces et Composites, Université de Bretagne-Sud, 56325 Lorient, France
| | - Christophe M. Thomas
- Organométalliques et Catalyse, UMR 6226 Sciences Chimiques de Rennes, Université de Rennes 1-CNRS, 35042 Rennes, France, RMN-Interactions Lipides Protéines, UMR 6026, Université de Rennes 1-CNRS, 35042 Rennes, France, and Laboratoire Polymères, Propriétés aux Interfaces et Composites, Université de Bretagne-Sud, 56325 Lorient, France
| | - Arnaud Bondon
- Organométalliques et Catalyse, UMR 6226 Sciences Chimiques de Rennes, Université de Rennes 1-CNRS, 35042 Rennes, France, RMN-Interactions Lipides Protéines, UMR 6026, Université de Rennes 1-CNRS, 35042 Rennes, France, and Laboratoire Polymères, Propriétés aux Interfaces et Composites, Université de Bretagne-Sud, 56325 Lorient, France
| | - Isabelle Pillin
- Organométalliques et Catalyse, UMR 6226 Sciences Chimiques de Rennes, Université de Rennes 1-CNRS, 35042 Rennes, France, RMN-Interactions Lipides Protéines, UMR 6026, Université de Rennes 1-CNRS, 35042 Rennes, France, and Laboratoire Polymères, Propriétés aux Interfaces et Composites, Université de Bretagne-Sud, 56325 Lorient, France
| | - Yves Grohens
- Organométalliques et Catalyse, UMR 6226 Sciences Chimiques de Rennes, Université de Rennes 1-CNRS, 35042 Rennes, France, RMN-Interactions Lipides Protéines, UMR 6026, Université de Rennes 1-CNRS, 35042 Rennes, France, and Laboratoire Polymères, Propriétés aux Interfaces et Composites, Université de Bretagne-Sud, 56325 Lorient, France
| | - Jean-François Carpentier
- Organométalliques et Catalyse, UMR 6226 Sciences Chimiques de Rennes, Université de Rennes 1-CNRS, 35042 Rennes, France, RMN-Interactions Lipides Protéines, UMR 6026, Université de Rennes 1-CNRS, 35042 Rennes, France, and Laboratoire Polymères, Propriétés aux Interfaces et Composites, Université de Bretagne-Sud, 56325 Lorient, France
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Kawalec M, Śmiga-Matuszowicz M, Kurcok P. Counterion and solvent effects on the anionic polymerization of β-butyrolactone initiated with acetic acid salts. Eur Polym J 2008. [DOI: 10.1016/j.eurpolymj.2008.09.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Yin HD, Cui JC, Qiao YL. Synthesis, characterization and crystal structure of binuclear diorganotin(IV) complexes derived from hexadentate diacylhydrazone ligands. Polyhedron 2008. [DOI: 10.1016/j.poly.2008.04.013] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Pellei M, Alidori S, Benetollo F, Lobbia GG, Mancini M, Lobbia GEG, Santini C. Di- and tri-organotin(IV) complexes of the new bis(1-methyl-1H-imidazol-2-ylthio)acetate ligand and the decarboxylated analogues. J Organomet Chem 2008. [DOI: 10.1016/j.jorganchem.2007.12.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Liu KL, Goh SH, Li J. Controlled synthesis and characterizations of amphiphilic poly[(R,S)-3-hydroxybutyrate]-poly(ethylene glycol)-poly[(R,S)-3-hydroxybutyrate] triblock copolymers. POLYMER 2008. [DOI: 10.1016/j.polymer.2007.12.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Kamber NE, Jeong W, Waymouth RM, Pratt RC, Lohmeijer BGG, Hedrick JL. Organocatalytic ring-opening polymerization. Chem Rev 2007; 107:5813-40. [PMID: 17988157 DOI: 10.1021/cr068415b] [Citation(s) in RCA: 1095] [Impact Index Per Article: 64.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nahrain E Kamber
- Department of Chemistry, Stanford University, Stanford, California 94305, USA
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Wei Z, Liu L, Qi M. Kinetics and mechanism of the ring opening polymerization of (R,S)-β-butyrolactone initiated with dibutylmagnesium. Eur Polym J 2007. [DOI: 10.1016/j.eurpolymj.2007.01.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Lohmeijer BGG, Pratt RC, Leibfarth F, Logan JW, Long DA, Dove AP, Nederberg F, Choi J, Wade C, Waymouth RM, Hedrick JL. Guanidine and Amidine Organocatalysts for Ring-Opening Polymerization of Cyclic Esters. Macromolecules 2006. [DOI: 10.1021/ma0619381] [Citation(s) in RCA: 593] [Impact Index Per Article: 32.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bas G. G. Lohmeijer
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120; University of South Dakota, Vermillion, South Dakota 57069; Chemistry Department, San José State University, San Jose, California 95192; Kenyon College, Gambier, Ohio 43022; Department of Chemistry, University of Warwick, Coventry, United Kingdom; and Department of Chemistry, Stanford University, Stanford, California 94305
| | - Russell C. Pratt
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120; University of South Dakota, Vermillion, South Dakota 57069; Chemistry Department, San José State University, San Jose, California 95192; Kenyon College, Gambier, Ohio 43022; Department of Chemistry, University of Warwick, Coventry, United Kingdom; and Department of Chemistry, Stanford University, Stanford, California 94305
| | - Frank Leibfarth
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120; University of South Dakota, Vermillion, South Dakota 57069; Chemistry Department, San José State University, San Jose, California 95192; Kenyon College, Gambier, Ohio 43022; Department of Chemistry, University of Warwick, Coventry, United Kingdom; and Department of Chemistry, Stanford University, Stanford, California 94305
| | - John W. Logan
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120; University of South Dakota, Vermillion, South Dakota 57069; Chemistry Department, San José State University, San Jose, California 95192; Kenyon College, Gambier, Ohio 43022; Department of Chemistry, University of Warwick, Coventry, United Kingdom; and Department of Chemistry, Stanford University, Stanford, California 94305
| | - David A. Long
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120; University of South Dakota, Vermillion, South Dakota 57069; Chemistry Department, San José State University, San Jose, California 95192; Kenyon College, Gambier, Ohio 43022; Department of Chemistry, University of Warwick, Coventry, United Kingdom; and Department of Chemistry, Stanford University, Stanford, California 94305
| | - Andrew P. Dove
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120; University of South Dakota, Vermillion, South Dakota 57069; Chemistry Department, San José State University, San Jose, California 95192; Kenyon College, Gambier, Ohio 43022; Department of Chemistry, University of Warwick, Coventry, United Kingdom; and Department of Chemistry, Stanford University, Stanford, California 94305
| | - Fredrik Nederberg
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120; University of South Dakota, Vermillion, South Dakota 57069; Chemistry Department, San José State University, San Jose, California 95192; Kenyon College, Gambier, Ohio 43022; Department of Chemistry, University of Warwick, Coventry, United Kingdom; and Department of Chemistry, Stanford University, Stanford, California 94305
| | - Jeongsoo Choi
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120; University of South Dakota, Vermillion, South Dakota 57069; Chemistry Department, San José State University, San Jose, California 95192; Kenyon College, Gambier, Ohio 43022; Department of Chemistry, University of Warwick, Coventry, United Kingdom; and Department of Chemistry, Stanford University, Stanford, California 94305
| | - Charles Wade
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120; University of South Dakota, Vermillion, South Dakota 57069; Chemistry Department, San José State University, San Jose, California 95192; Kenyon College, Gambier, Ohio 43022; Department of Chemistry, University of Warwick, Coventry, United Kingdom; and Department of Chemistry, Stanford University, Stanford, California 94305
| | - Robert M. Waymouth
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120; University of South Dakota, Vermillion, South Dakota 57069; Chemistry Department, San José State University, San Jose, California 95192; Kenyon College, Gambier, Ohio 43022; Department of Chemistry, University of Warwick, Coventry, United Kingdom; and Department of Chemistry, Stanford University, Stanford, California 94305
| | - James L. Hedrick
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120; University of South Dakota, Vermillion, South Dakota 57069; Chemistry Department, San José State University, San Jose, California 95192; Kenyon College, Gambier, Ohio 43022; Department of Chemistry, University of Warwick, Coventry, United Kingdom; and Department of Chemistry, Stanford University, Stanford, California 94305
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Pellei M, Gioia Lobbia G, Ricciutelli M, Santini C. Synthesis and spectroscopic characterization of new organotin(IV) complexes with bis(3,5-dimethylpyrazol-1-yl)dithioacetate. J COORD CHEM 2006. [DOI: 10.1080/00958970412331331650] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Maura Pellei
- a Dipartimento di Scienze Chimiche , Università di Camerino , via S. Agostino 1, 62032 Camerino, Macerata, Italy
| | - Giancarlo Gioia Lobbia
- a Dipartimento di Scienze Chimiche , Università di Camerino , via S. Agostino 1, 62032 Camerino, Macerata, Italy
| | - Massimo Ricciutelli
- a Dipartimento di Scienze Chimiche , Università di Camerino , via S. Agostino 1, 62032 Camerino, Macerata, Italy
| | - Carlo Santini
- a Dipartimento di Scienze Chimiche , Università di Camerino , via S. Agostino 1, 62032 Camerino, Macerata, Italy
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Coulembier O, Lohmeijer BGG, Dove AP, Pratt RC, Mespouille L, Culkin DA, Benight SJ, Dubois P, Waymouth RM, Hedrick JL. Alcohol Adducts of N-Heterocyclic Carbenes: Latent Catalysts for the Thermally-Controlled Living Polymerization of Cyclic Esters. Macromolecules 2006. [DOI: 10.1021/ma0611366] [Citation(s) in RCA: 124] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Olivier Coulembier
- Laboratory of Polymeric and Composite Materials (LPCM), University of Mons-Hainaut, Place du Parc 20, B-7000 Mons, Belgium, IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, and Stanford University, Department of Chemistry, Stanford, California 94305
| | - Bas G. G. Lohmeijer
- Laboratory of Polymeric and Composite Materials (LPCM), University of Mons-Hainaut, Place du Parc 20, B-7000 Mons, Belgium, IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, and Stanford University, Department of Chemistry, Stanford, California 94305
| | - Andrew P. Dove
- Laboratory of Polymeric and Composite Materials (LPCM), University of Mons-Hainaut, Place du Parc 20, B-7000 Mons, Belgium, IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, and Stanford University, Department of Chemistry, Stanford, California 94305
| | - Russell C. Pratt
- Laboratory of Polymeric and Composite Materials (LPCM), University of Mons-Hainaut, Place du Parc 20, B-7000 Mons, Belgium, IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, and Stanford University, Department of Chemistry, Stanford, California 94305
| | - Laetitia Mespouille
- Laboratory of Polymeric and Composite Materials (LPCM), University of Mons-Hainaut, Place du Parc 20, B-7000 Mons, Belgium, IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, and Stanford University, Department of Chemistry, Stanford, California 94305
| | - Darcy A. Culkin
- Laboratory of Polymeric and Composite Materials (LPCM), University of Mons-Hainaut, Place du Parc 20, B-7000 Mons, Belgium, IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, and Stanford University, Department of Chemistry, Stanford, California 94305
| | - Stephanie J. Benight
- Laboratory of Polymeric and Composite Materials (LPCM), University of Mons-Hainaut, Place du Parc 20, B-7000 Mons, Belgium, IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, and Stanford University, Department of Chemistry, Stanford, California 94305
| | - Philippe Dubois
- Laboratory of Polymeric and Composite Materials (LPCM), University of Mons-Hainaut, Place du Parc 20, B-7000 Mons, Belgium, IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, and Stanford University, Department of Chemistry, Stanford, California 94305
| | - Robert M. Waymouth
- Laboratory of Polymeric and Composite Materials (LPCM), University of Mons-Hainaut, Place du Parc 20, B-7000 Mons, Belgium, IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, and Stanford University, Department of Chemistry, Stanford, California 94305
| | - James L. Hedrick
- Laboratory of Polymeric and Composite Materials (LPCM), University of Mons-Hainaut, Place du Parc 20, B-7000 Mons, Belgium, IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, and Stanford University, Department of Chemistry, Stanford, California 94305
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Amgoune A, Thomas CM, Ilinca S, Roisnel T, Carpentier JF. Highly Active, Productive, and Syndiospecific Yttrium Initiators for the Polymerization of Racemic β-Butyrolactone. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200600058] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Amgoune A, Thomas CM, Ilinca S, Roisnel T, Carpentier JF. Highly Active, Productive, and Syndiospecific Yttrium Initiators for the Polymerization of Racemic β-Butyrolactone. Angew Chem Int Ed Engl 2006; 45:2782-4. [PMID: 16548028 DOI: 10.1002/anie.200600058] [Citation(s) in RCA: 223] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Abderramane Amgoune
- Organométalliques et Catalyse, Institut de Chimie de Rennes, Université de Rennes 1, 35042 Rennes, France
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Schreck KM, Hillmyer MA. Controlled polymerization of α-methyl-β-pentyl-β-propiolactone by a discrete zinc alkoxide complex. Tetrahedron 2004. [DOI: 10.1016/j.tet.2004.06.101] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Lee JT, Alper H. Alternating Copolymerization of Propylene Oxide and Carbon Monoxide to form Aliphatic Polyesters. Macromolecules 2004. [DOI: 10.1021/ma030419k] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jong Tae Lee
- Centre for Catalysis Research and Innovation, Department of Chemistry, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, Canada K1N 6N5
| | - Howard Alper
- Centre for Catalysis Research and Innovation, Department of Chemistry, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, Canada K1N 6N5
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Beckmann J, Dakternieks D, Duthie A, Sheen Kuan F, Jurkschat K, Schürmann M, Tiekink ERT. Synthesis and structures of new oligomethylene-bridged double ladders. How far can the layers be separated? NEW J CHEM 2004. [DOI: 10.1039/b316009b] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Li J, Zhu B, He Y, Inoue Y. Thermal and Infrared Spectroscopic Studies on Hydrogen-Bonding Interaction between Poly(3-hydroxybutyrate) and Catechin. Polym J 2003. [DOI: 10.1295/polymj.35.384] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Biesemans M, Duthie A, Jurkschat K, Verbruggen I, Willem R, Zobel B. Transients from a mixture of [(R(O)Sn)2C(CH3)2]2 and (RCl2Sn)2C(CH3)2 [R = (SiMe3)2CH]: an identificationin situ by 1D119Sn and 2D1H?119Sn HMQC NMR spectroscopy and electrospray mass spectrometry. Appl Organomet Chem 2003. [DOI: 10.1002/aoc.443] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Rieth LR, Moore DR, Lobkovsky EB, Coates GW. Single-site beta-diiminate zinc catalysts for the ring-opening polymerization of beta-butyrolactone and beta-valerolactone to poly(3-hydroxyalkanoates). J Am Chem Soc 2002; 124:15239-48. [PMID: 12487599 DOI: 10.1021/ja020978r] [Citation(s) in RCA: 327] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Polymerization of beta-butyrolactone (BBL) and beta-valerolactone (BVL) using the zinc alkoxide initiator (BDI-1)ZnO(i)()Pr [(BDI-1) = 2-((2,6-diisopropylphenyl)amido)-4-((2,6-diisopropylphenyl)imino)-2-pentene] proceeds very rapidly under mild conditions to produce poly(3-hydroxybutyrate) (PHB) and poly(3-hydroxyvalerate) (PHV), respectively. For the monomer-to-initiator ratio 200:1, PHB number-average molecular weights (M(n)) are proportional to conversion throughout the reaction and polydispersity indices (PDIs) are narrow, consistent with a living polymerization. Higher monomer-to-initiator ratios can be used to achieve high molecular weight PHB (M(n) > 100 000). End-group analysis verifies that the polymerization of BBL follows a coordination-insertion mechanism, where complexes of the form (BDI-1)ZnOCH(Me)CH(2)CO(2)R are the active species. Variable temperature NMR experiments show that (BDI-1)ZnO(i)()Pr is monomeric in benzene-d(6) solution. In contrast, (BDI-2)ZnO(i)()Pr [(BDI-2) = 2-((2,6-diethylphenyl)amido)-4-((2,6-diethylphenyl)imino)-2-pentene] is a poor initiator at room temperature because it prefers to form a bis-mu-isopropoxide dimer in solution. According to kinetic studies, propagation by (BDI-1)ZnO(i)()Pr is first order in both monomer as well as (BDI-1)ZnO(i)()Pr concentration. These results lead us to propose a monometallic active species. Several results suggest that elimination side reactions are slowly catalyzed by zinc alkoxides, leading to degradation of the polymer.
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Affiliation(s)
- Lee R Rieth
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, USA
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Beckmann J, Dakternieks D, Kuan FS, Tiekink ER. A novel route for the preparation of dimeric tetraorganodistannoxanes. J Organomet Chem 2002. [DOI: 10.1016/s0022-328x(02)01705-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Li J, He Y, Inoue Y. The Effect of Crystallization on the Thinning-Thickening Phenomena of Plastic Blend Film in Water Media. Polym J 2002. [DOI: 10.1295/polymj.34.562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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He Y, Li J, Shuai X, Inoue Y. Reversible Thickening/Thinning Phenomena Observed for Polymer Blend Films in Water Media. Macromolecules 2001. [DOI: 10.1021/ma010991g] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yong He
- Department of Biomolecular Engineering, Tokyo Institute of Technology, Nagatsuta 4259, Midori-ku, Yokohama 226-8501, Japan
| | - Jianchun Li
- Department of Biomolecular Engineering, Tokyo Institute of Technology, Nagatsuta 4259, Midori-ku, Yokohama 226-8501, Japan
| | - Xintao Shuai
- Department of Biomolecular Engineering, Tokyo Institute of Technology, Nagatsuta 4259, Midori-ku, Yokohama 226-8501, Japan
| | - Yoshio Inoue
- Department of Biomolecular Engineering, Tokyo Institute of Technology, Nagatsuta 4259, Midori-ku, Yokohama 226-8501, Japan
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Osanai Y, Toshima K, Matsumura S. Lipase-Catalyzed Reaction of Molecularly Pure Linear and Cyclic Poly(3-hydroxybutanoate)s: Evidence of Cyclic Polymer Formation. CHEM LETT 2000. [DOI: 10.1246/cl.2000.576] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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