1
|
Sagar S, Nath P, Ray A, Sarkar A, Panda TK. Crafting sustainable solutions: architecting biodegradable copolymers through controlled ring-opening copolymerization. Dalton Trans 2024; 53:12837-12866. [PMID: 38973394 DOI: 10.1039/d4dt01054j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/09/2024]
Abstract
Polylactic acid (PLA) is a biodegradable and biocompatible polymer with versatile applications in packaging and medicine. It is derived from lactic acid and thus represents an eco-friendly option sourced from renewable raw materials. Despite its advantages, PLA exhibits few drawbacks, such as brittleness and relatively high melting and glass transition temperatures. However, these limitations can be addressed through copolymerization with other monomers like ε-caprolactone (ε-CL), resulting in a composite material with improved physical properties. This paper comprehensively reviews achievements in PLA-PCL copolymerization using organometallic catalysts, discussing scientific findings and various copolymer architectures obtained, including random or block configurations. It also demonstrates various sustainable catalysts for achieving the required microstructure under mild reaction conditions without the aid of any external initiator.
Collapse
Affiliation(s)
- Shweta Sagar
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi - 502 284, Sangareddy, Telangana, India.
| | - Priyanku Nath
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi - 502 284, Sangareddy, Telangana, India.
| | - Aranya Ray
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi - 502 284, Sangareddy, Telangana, India.
| | - Alok Sarkar
- Momentive Performance Materials Pvt. Ltd, Survey No. 09, Hosur Road, Electronic City (West), Bangalore-560100, India
| | - Tarun K Panda
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi - 502 284, Sangareddy, Telangana, India.
| |
Collapse
|
2
|
Sachan R, Warkar SG, Purwar R. An overview on synthesis, properties and applications of polycaprolactone copolymers, blends & composites. POLYM-PLAST TECH MAT 2023. [DOI: 10.1080/25740881.2022.2113890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Radha Sachan
- Discipline of Polymer Science and Chemical Technology, Department of Applied Chemistry, Delhi Technological University, Delhi, India
| | - Sudhir G. Warkar
- Discipline of Polymer Science and Chemical Technology, Department of Applied Chemistry, Delhi Technological University, Delhi, India
| | - Roli Purwar
- Discipline of Polymer Science and Chemical Technology, Department of Applied Chemistry, Delhi Technological University, Delhi, India
| |
Collapse
|
3
|
Rittinghaus RD, Herres-Pawlis S. Catalysts as Key Enablers for the Synthesis of Bioplastics with Sophisticated Architectures. Chemistry 2023; 29:e202202222. [PMID: 36173968 PMCID: PMC10098652 DOI: 10.1002/chem.202202222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Indexed: 01/05/2023]
Abstract
Bioplastics are one of the answers to environmental pollution and linear material flows. The most promising bioplastic polylactide (PLA) is already replacing conventional plastics in a number of applications. The properties of PLA, however, do not fit for all potential application areas, but they can be altered by the introduction of comonomers. The copolymerization of lactide (LA) with other lactones like ϵ-caprolactone (CL) has been established for several years. Nevertheless, controlling copolymerizations remains a challenge due to the high complexity of the system. Copolymerization of LA with other monomer classes is much less investigated, but has the chance to overcome the limitations in material properties that occur when only lactones are used. The crucial factor for all copolymerizations is the catalyst. It dominates the reaction kinetics and determines the resulting microstructure. In this review, copolymerization catalysts for LA are presented divided into catalysts for the synthesis of lactone block copolymers, lactone random copolymers, and multimechanistically synthesized copolymers. The selected catalysts are highlighted either owing to their industrially applicable polymerization conditions or their non-standard mechanism.
Collapse
Affiliation(s)
- Ruth D Rittinghaus
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Sonja Herres-Pawlis
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| |
Collapse
|
4
|
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.
Collapse
|
5
|
Rittinghaus RD, Zenner J, Pich A, Kol M, Herres‐Pawlis S. Master of Chaos and Order: Opposite Microstructures of PCL‐
co
‐PGA‐
co
‐PLA Accessible by a Single Catalyst**. Angew Chem Int Ed Engl 2022; 61:e202112853. [PMID: 34984790 PMCID: PMC9305917 DOI: 10.1002/anie.202112853] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Indexed: 12/27/2022]
Abstract
One catalyst, two reaction set‐ups, three monomers and unlimited macromolecular microstructural designs: The iron guanidine complex [FeCl2(TMG5NMe2asme)] (1) polymerizes lactide faster than the industrially used Sn(Oct)2 and shows high activity towards glycolide and ϵ‐caprolactone. Its distinguished features enable the synthesis of both block and random‐like copolymers in the melt by a simple change of the polymerization set‐up. Sequential addition of monomers yields highly ordered block copolymers including the symmetrical PLA‐b‐PGA‐b‐PCL‐b‐PGA‐b‐PLA pentablock copolymers, while polymerizations of monomer mixtures feature enhanced transesterifications and pave the way to di‐ and terpolymers with highly dispersed repeating unit distributions. A robust catalyst active under industrially applicable conditions and producing copolymers with desired microstructures is a major step towards biocompatible polymers with tailor‐made properties as alternatives for traditional plastics on the way towards a sustainable, circular material flow.
Collapse
Affiliation(s)
- Ruth D. Rittinghaus
- Institute of Inorganic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Johannes Zenner
- Institute of Inorganic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Andrij Pich
- Institute of Technical and Macromolecular Chemistry RWTH Aachen University Worringerweg 2 52074 Aachen Germany
| | - Moshe Kol
- The School of Chemistry Tel Aviv University Ramat-Aviv, Tel-Aviv 6997801 Israel
| | - Sonja Herres‐Pawlis
- Institute of Inorganic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| |
Collapse
|
6
|
Rittinghaus RD, Zenner J, Pich A, Kol M, Herres‐Pawlis S. Kontrolle über Chaos und Ordnung: Gegensätzliche Mikrostrukturen von PCL‐
co
‐PGA‐
co
‐PLA durch einen einzigen Katalysator zugänglich**. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202112853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Ruth D. Rittinghaus
- Institut für Anorganische Chemie RWTH Aachen University Landoltweg 1 52074 Aachen Deutschland
| | - Johannes Zenner
- Institut für Anorganische Chemie RWTH Aachen University Landoltweg 1 52074 Aachen Deutschland
| | - Andrij Pich
- Institut für Technische und Makromolekulare Chemie RWTH Aachen University Worringerweg 2 52074 Aachen Deutschland
| | - Moshe Kol
- The School of Chemistry Tel Aviv University Ramat-Aviv, Tel-Aviv 6997801 Israel
| | - Sonja Herres‐Pawlis
- Institut für Anorganische Chemie RWTH Aachen University Landoltweg 1 52074 Aachen Deutschland
| |
Collapse
|
7
|
Zhang X, Prior TJ, Redshaw C. Niobium and Tantalum complexes derived from the acids Ph 2C(X)CO 2H (X = OH, NH 2): synthesis, structure and ROP capability. NEW J CHEM 2022. [DOI: 10.1039/d2nj02527b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Tetranuclear [M4(OEt)8(L1)4(μ-O)2] and dinuclear [M2(OEt)4(L2H2)4(μ-O)] complexes (M = Nb, Ta) derived from benzilic acid (L1H2) and diphenylglycine (L2H3) have been structurally characterized and are capable of the ROP of μ-caprolactone and rac-lactide.
Collapse
Affiliation(s)
- Xin Zhang
- Plastics Collaboratory, Department of Chemistry, The University of Hull, Cottingham Rd, Hull HU6 7RX, UK
| | - Timothy J. Prior
- Plastics Collaboratory, Department of Chemistry, The University of Hull, Cottingham Rd, Hull HU6 7RX, UK
| | - Carl Redshaw
- Plastics Collaboratory, Department of Chemistry, The University of Hull, Cottingham Rd, Hull HU6 7RX, UK
| |
Collapse
|
8
|
D'Auria I, Lamberti M, Rescigno R, Venditto V, Mazzeo M. Copolymerization of L-Lactide and ε-Caprolactone promoted by zinc complexes with phosphorus based ligands. Heliyon 2021; 7:e07630. [PMID: 34381896 PMCID: PMC8339243 DOI: 10.1016/j.heliyon.2021.e07630] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/02/2021] [Accepted: 07/20/2021] [Indexed: 11/04/2022] Open
Abstract
The zinc complexes 1 and 2 bearing chelating phosphorous based pincer ligands were found to catalyze the ring-opening copolymerization of L-lactide and ε-caprolactone in the melt at 110 °C to obtain a series of random copolymers in which the monomer distributions were coherent with the monomer ratio in the feed. All the obtained copolymers showed high molecular masses with monomodal and moderately narrow distributions. The thermal properties of the achieved copolymers (Tg, glass transition temperature, and Tm, melting temperature) were strongly dependent on their composition. A linear dependence of Tg with molar percentage of lactide in the copolymers was observed over a temperature range from -59 °C (pure polycaprolactone) to 55 °C (pure polylactide).
Collapse
Affiliation(s)
- Ilaria D'Auria
- Department of Chemistry and Biology "Adolfo Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Salerno, Italy
| | - Marina Lamberti
- Department of Chemistry and Biology "Adolfo Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Salerno, Italy
| | - Raffaella Rescigno
- Department of Chemistry and Biology "Adolfo Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Salerno, Italy
| | - Vincenzo Venditto
- Department of Chemistry and Biology "Adolfo Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Salerno, Italy.,INSTM Research Unit, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - Mina Mazzeo
- Department of Chemistry and Biology "Adolfo Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Salerno, Italy
| |
Collapse
|
9
|
Ghosh S, Glöckler E, Wölper C, Tjaberings A, Gröschel AH, Schulz S. Active Ga-catalysts for the ring opening homo- and copolymerization of cyclic esters, and copolymerization of epoxide and anhydrides. Dalton Trans 2020; 49:13475-13486. [PMID: 32966460 DOI: 10.1039/d0dt02831b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A series of gallium complexes L12Ga4Me8 (1), L22Ga4Me8 (2), and L32Ga4Me8 (3) was synthesized by reaction of GaMe3 with Schiff base ligands L1-3H2 (L1H2 = 2,4-di-tert-butyl-6-{[(3-hydroxypropyl)imino]methyl}phenol; L2H2 = 2,4-dichloro-6-{[(3-hydroxypropyl)imino]methyl}phenol; L3H2 = 4-tert-butyl-2-{[(3-hydroxypropyl)imino]methyl}phenol) and characterized by 1H, 13C NMR, IR spectroscopy, elemental analysis and single crystal X-ray analysis (1, 2), proving their tetranuclear structure in the solid state. Complexes 1-3 showed good catalytic activity in the ring opening homopolymerization (ROP) and ring opening copolymerization (ROcoP) of lactide (LA) and ε-caprolactone (ε-CL) in the presence of benzyl alcohol (BnOH) in toluene at 100 °C, yielding polymers with the expected average molecular weights (Mn) and narrow molecular weight distributions (MWD), as well as a high isoselectivity for the ROP of rac-lactide (rac-LA), yielding isotactic-enriched PLAs with Pm values up to 0.78. Kinetic studies with complex 1 proved the first order dependence on monomer concentration, while mechanistic studies confirmed the coordination insertion mechanistic (CIM) pathway. Sequential addition of monomers gave well defined diblock copolymers of PCL-b-PLLA and PLLA-b-PCL, proving the living character of the polymerization reactions. The catalysts also showed perfect selectivity for the copolymerization of cyclohexene oxide (CHO) with both succinic anhydride (SA) and maleic anhydride (MA) in the presence of BnOH and produced >99% alternating block copolymers.
Collapse
Affiliation(s)
- Swarup Ghosh
- Faculty of Chemistry, University of Duisburg-Essen and Center for Nanointegration Duisburg-Essen (CENIDE), Universitätsstr. 7, S07 S03 C30, D-45141 Essen, Germany.
| | | | | | | | | | | |
Collapse
|
10
|
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.
Collapse
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.)
| |
Collapse
|
11
|
Gruszka W, Walker LC, Shaver MP, Garden JA. In Situ Versus Isolated Zinc Catalysts in the Selective Synthesis of Homo and Multi-block Polyesters. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00277] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Weronika Gruszka
- EaStCHEM School of Chemistry, University of Edinburgh, Edinburgh EH9 3FJ, United Kingdom
| | - Leah C. Walker
- EaStCHEM School of Chemistry, University of Edinburgh, Edinburgh EH9 3FJ, United Kingdom
| | - Michael P. Shaver
- School of Natural Sciences, Department of Materials, The University of Manchester, Manchester M13 9PL, United Kingdom
- Henry Royce Institute, The University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Jennifer A. Garden
- EaStCHEM School of Chemistry, University of Edinburgh, Edinburgh EH9 3FJ, United Kingdom
| |
Collapse
|
12
|
Toshikj N, Robin JJ, Blanquer S. A simple and general approach for the synthesis of biodegradable triblock copolymers by organocatalytic ROP from poly(lactide) macroinitiators. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109599] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
13
|
García-Valle FM, Cuenca T, Mosquera ME, Milione S, Cano J. Ring-Opening Polymerization (ROP) of cyclic esters by a versatile aluminum Diphenoxyimine Complex: From polylactide to random copolymers. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109527] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
14
|
Nifant'ev I, Shlyakhtin A, Kosarev M, Gavrilov D, Karchevsky S, Ivchenko P. DFT Visualization and Experimental Evidence of BHT-Mg-Catalyzed Copolymerization of Lactides, Lactones and Ethylene Phosphates. Polymers (Basel) 2019; 11:E1641. [PMID: 31658688 PMCID: PMC6836241 DOI: 10.3390/polym11101641] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 10/05/2019] [Accepted: 10/08/2019] [Indexed: 12/02/2022] Open
Abstract
Catalytic ring-opening polymerization (ROP) of cyclic esters (lactides, lactones) and cyclic ethylene phosphates is an effective way to process materials with regulated hydrophilicity and controlled biodegradability. Random copolymers of cyclic monomers of different chemical nature are highly attractive due to their high variability of characteristics. Aryloxy-alkoxy complexes of non-toxic metals such as derivatives of 2,6-di-tert-butyl-4-methylphenoxy magnesium (BHT-Mg) complexes are effective coordination catalysts for homopolymerization of all types of traditional ROP monomers. In the present paper, we report the results of density functional theory (DFT) modeling of BHT-Mg-catalyzed copolymerization for lactone/lactide, lactone/ethylene phosphate and lactide/ethylene phosphate mixtures. ε-Caprolactone (ε-CL), l-lactide (l-LA) and methyl ethylene phosphate (MeOEP) were used as examples of monomers in DFT simulations by the Gaussian-09 program package with the B3PW91/DGTZVP basis set. Both binuclear and mononuclear reaction mechanistic concepts have been applied for the calculations of the reaction profiles. The results of calculations predict the possibility of the formation of random copolymers based on l-LA/MeOEP, and substantial hindrance of copolymerization for ε-CL/l-LA and ε-CL/MeOEP pairs. From the mechanistic point of view, the formation of highly stable five-membered chelate by the products of l-LA ring-opening and high donor properties of phosphates are the key factors that rule the reactions. The results of DFT modeling have been confirmed by copolymerization experiments.
Collapse
Affiliation(s)
- Ilya Nifant'ev
- Chemistry Department, M.V. Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia.
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia.
| | - Andrey Shlyakhtin
- Chemistry Department, M.V. Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia.
| | - Maxim Kosarev
- Chemistry Department, M.V. Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia.
| | - Dmitry Gavrilov
- Chemistry Department, M.V. Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia.
| | - Stanislav Karchevsky
- Joint-stock company "Institute of petroleum refining and petrochemistry", 12 Iniciativnaya Str., 450065 Ufa, Republic of Bashkortostan, Russia.
| | - Pavel Ivchenko
- Chemistry Department, M.V. Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia.
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia.
| |
Collapse
|
15
|
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
| |
Collapse
|
16
|
Synthesis of mono- and tetra-nuclear β-pyridylenolate zinc complexes and their catalysis toward the ring-opening copolymerization of ε-caprolactone and lactide. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.06.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
17
|
Ouyang H, Yuan D, Nie K, Zhang Y, Yao Y, Cui D. Synthesis and Characterization of Dinuclear Salan Rare-Earth Metal Complexes and Their Application in the Homo- and Copolymerization of Cyclic Esters. Inorg Chem 2018; 57:9028-9038. [PMID: 30001120 DOI: 10.1021/acs.inorgchem.8b01046] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Hao Ouyang
- Key Laboratory of Organic Synthesis of Jiangsu Province and the State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
| | - Dan Yuan
- Key Laboratory of Organic Synthesis of Jiangsu Province and the State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
| | - Kun Nie
- Key Laboratory of Organic Synthesis of Jiangsu Province and the State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
- School of Chemistry and Chemical Engineering, Taishan University, Taian 271021, China
| | - Yong Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province and the State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
| | - Yingming Yao
- Key Laboratory of Organic Synthesis of Jiangsu Province and the State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| |
Collapse
|
18
|
Timashev PS, Vorobieva NN, Akovantseva AA, Minaev NV, Piskun YA, Kostjuk SV, Selezneva II, Vasilenko IV, Zakharkina OL, Ignatieva NY, Chailakhyan RK, Lunin VV, Bagratashvili VN. Biocompatibility and Degradation of Porous Matrixes from Lactide and ε-Caprolactone Copolymers Formed in a Supercritical Carbon Dioxide Medium. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2018. [DOI: 10.1134/s199079311707017x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
19
|
A convenient method to prepare random LA/CL copolymers from poly(L-lactide) and ε-caprolactone. Sci China Chem 2018. [DOI: 10.1007/s11426-017-9212-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
20
|
Harinath A, Bhattacharjee J, Sarkar A, Nayek HP, Panda TK. Ring Opening Polymerization and Copolymerization of Cyclic Esters Catalyzed by Group 2 Metal Complexes Supported by Functionalized P–N Ligands. Inorg Chem 2018; 57:2503-2516. [DOI: 10.1021/acs.inorgchem.7b02847] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Adimulam Harinath
- Department of Chemistry, Indian Institute of Technology Hyderabad Kandi 502 285, Sangareddy, Telangana, India
| | - Jayeeta Bhattacharjee
- Department of Chemistry, Indian Institute of Technology Hyderabad Kandi 502 285, Sangareddy, Telangana, India
| | - Alok Sarkar
- Momentive Performance
Materials Pvt. Ltd., Bangalore 560 100, India
| | - Hari Pada Nayek
- Department of Applied Chemistry, Indian Institute of Technology (ISM), Dhanbad 826 004, Jharkhand, India
| | - Tarun K. Panda
- Department of Chemistry, Indian Institute of Technology Hyderabad Kandi 502 285, Sangareddy, Telangana, India
| |
Collapse
|
21
|
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.
Collapse
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
| |
Collapse
|
22
|
Tang B, Schneiderman DK, Zare Bidoky F, Frisbie CD, Lodge TP. Printable, Degradable, and Biocompatible Ion Gels from a Renewable ABA Triblock Polyester and a Low Toxicity Ionic Liquid. ACS Macro Lett 2017; 6:1083-1088. [PMID: 35650946 DOI: 10.1021/acsmacrolett.7b00582] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We have designed printable, biocompatible, and degradable ion gels by combining a novel ABA triblock aliphatic polyester, poly(ε-decalactone)-b-poly(dl-lactide)-b-poly(ε-decalactone), and a low toxicity ionic liquid, 1-butyl-1-methylpyrrolidinium bistrifluoromethanesulfonylimide ([P14][TFSI]). Due to the favorable compatibility between amorphous poly(dl-lactide) and [P14][TFSI] and the insolubility of the poly(ε-decalactone), the triblock polymer forms self-assembled micellar cross-links similar to thermoplastic elastomers, which ensures similar processing conditions and mechanical robustness during the fabrication of printed electrolyte-gated organic transistor devices. Additionally, the ester backbone in the polymer structure enables efficient hydrolytic degradation of these ion gels compared to those made previously using carbon-backbone polymers.
Collapse
Affiliation(s)
- Boxin Tang
- Department of Chemical Engineering and Materials Science and ‡Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Deborah K. Schneiderman
- Department of Chemical Engineering and Materials Science and ‡Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Fazel Zare Bidoky
- Department of Chemical Engineering and Materials Science and ‡Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - C. Daniel Frisbie
- Department of Chemical Engineering and Materials Science and ‡Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Timothy P. Lodge
- Department of Chemical Engineering and Materials Science and ‡Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| |
Collapse
|
23
|
Fadlallah S, Jothieswaran J, Capet F, Bonnet F, Visseaux M. Mixed Allyl Rare-Earth Borohydride Complexes: Synthesis, Structure, and Application in (Co-)Polymerization Catalysis of Cyclic Esters. Chemistry 2017; 23:15644-15654. [PMID: 28845893 DOI: 10.1002/chem.201702902] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 08/25/2017] [Indexed: 11/05/2022]
Abstract
A series of new trivalent rare-earth allyl-borohydride complexes with the formula [RE(BH4 )2 (C3 H5 )(thf)x ] (RE=Sc (1), x=2; RE=Y (2) and La (3), x=3) were synthesized by reaction of the corresponding rare-earth trisborohydrides [RE(BH4 )3 (thf)x ] with half an equivalent of bis(allyl)magnesium. The complexes were fully characterized by determining their X-ray structure. Similar to their previously described Nd (4) and Sm (5) analogues, these complexes display a monomeric structure with two terminal trihapto BH4 groups, one π-η3 allyl ligand, three THF molecules for complexes 2 and 3, and two THF molecules for complex 1. The catalytic behavior of complexes 1-5 toward the ring-opening polymerization (ROP) of l-lactide (l-LA) and ϵ-caprolactone (ϵ-CL) was assessed. The Nd complex featured the best activity toward l-LA (turnover frequency (TOF)=1300 h-1 ) and the order was Nd>La>Sm>Y>Sc. Complexes 1-3 were found very active for the ROP of ϵ-CL (TOF=166 000 h-1 ), which is in line with the already established exceptionnally high performance of complexes 4 and 5. With both monomers, it was shown that the borohydride moiety was the preferentially initiating group, rather than the allyl one. The random copolymerization of l-LA and ϵ-CL was performed with complexes 1-5, in the absence or in the presence of benzyl alcohol as a chain-transfer agent, affording copolymers with ϵ-caprolactone up to 62 % inserted. The copolymers synthesized display a variety of microstructures, that is, blocky, random, or quasi-alternating.
Collapse
Affiliation(s)
- Sami Fadlallah
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide, F-59000, Lille, France
| | - Jashvini Jothieswaran
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide, F-59000, Lille, France
| | - Frédéric Capet
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide, F-59000, Lille, France
| | - Fanny Bonnet
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide, F-59000, Lille, France
| | - Marc Visseaux
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide, F-59000, Lille, France
| |
Collapse
|
24
|
Chandanabodhi D, Nanok T. A DFT study of the ring-opening polymerization mechanism of l-lactide and ε-caprolactone using aluminium salen-type initiators: Towards an understanding of their reactivities in homo- and copolymerization. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.04.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
25
|
Characterization of Aliphatic Polyesters Synthesized via Enzymatic Ring-Opening Polymerization in Ionic Liquids. Molecules 2017; 22:molecules22060923. [PMID: 28574463 PMCID: PMC6152688 DOI: 10.3390/molecules22060923] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 05/31/2017] [Accepted: 05/31/2017] [Indexed: 11/16/2022] Open
Abstract
To evaluate the effects of ionic liquids (ILs) on the microstructural features of aliphatic polyesters for biomedical applications, a series of copolymers were synthesized by lipase ring opening polymerization of rac-lactide (rac-LA) and ε-caprolactone (CL). The chemical structures of resulting polymers were characterized by 1H- and 13C-NMR and the average molecular weight (Mn) and dispersity index were characterized by gel permeation chromatography. The structure of the copolymers confirms the presence of linear polymer chains with end-functional hydroxyl groups allowing covalent coupling of the therapeutic agents. Chain microstructure of copolymers indicates the presence of both random and block copolymers depending on the synthesis conditions. Moreover, it was found that CL is the most active co-monomer during copolymerization which enhances the polymerizability of rac-LA and allows to obtain higher Mn of the copolymers. The results demonstrate that ILs could be promising solvents in synthesis of aliphatic esters for biomedical applications.
Collapse
|
26
|
Pastusiak M, Dobrzynski P, Kasperczyk J, Sobota M, Kaczmarczyk B, Janeczek H. Synthesis of trimethylene carbonate/ϵ
-caprolactone copolymers initiated with zinc alkoxide: influence of copolymer chain microstructure on thermal and mechanical properties. POLYM INT 2017. [DOI: 10.1002/pi.5379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Malgorzata Pastusiak
- Centre of Polymer and Carbon Materials; Polish Academy of Sciences; Zabrze Poland
| | - Piotr Dobrzynski
- Centre of Polymer and Carbon Materials; Polish Academy of Sciences; Zabrze Poland
- Faculty of Mathematics and Natural Sciences; Jan Dlugosz University; Czestochowa Poland
| | - Janusz Kasperczyk
- Centre of Polymer and Carbon Materials; Polish Academy of Sciences; Zabrze Poland
- Department of Biopharmacy; Medical University of Silesia; Sosnowiec Poland
| | - Michal Sobota
- Centre of Polymer and Carbon Materials; Polish Academy of Sciences; Zabrze Poland
| | - Bozena Kaczmarczyk
- Centre of Polymer and Carbon Materials; Polish Academy of Sciences; Zabrze Poland
| | - Henryk Janeczek
- Centre of Polymer and Carbon Materials; Polish Academy of Sciences; Zabrze Poland
| |
Collapse
|
27
|
Synthesis of isosorbide-based polycarbonates via melt polycondensation catalyzed by quaternary ammonium ionic liquids. CHINESE JOURNAL OF CATALYSIS 2017. [DOI: 10.1016/s1872-2067(17)62822-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
28
|
Timashev PS, Vorobieva NN, Minaev NV, Piskun YA, Vasilenko IV, Lakeev SG, Kostyuk SV, Lunin VV, Bagratashvili VN. Formation of porous matrices from lactide and ε-caprolactone copolymers in supercritical carbon dioxide medium. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2017. [DOI: 10.1134/s1990793116080078] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
29
|
Bai J, Xiao X, Zhang Y, Chao J, Chen X. β-Pyridylenolate zinc catalysts for the ring-opening homo- and copolymerization of ε-caprolactone and lactides. Dalton Trans 2017; 46:9846-9858. [PMID: 28685784 DOI: 10.1039/c7dt01877k] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Eleven zinc β-quinolylenolates with varying substituents have been synthesized, and some of these complexes are excellent catalysts for the ring-opening homo- and copolymerization of ε-CL and LAs.
Collapse
Affiliation(s)
- Jianliang Bai
- School of Chemistry and Chemical Engineering. Shanxi University
- Taiyuan
- China
| | - Xia Xiao
- School of Chemistry and Chemical Engineering. Shanxi University
- Taiyuan
- China
| | - Yue Zhang
- School of Chemistry and Chemical Engineering. Shanxi University
- Taiyuan
- China
| | - Jianbin Chao
- Scientific Instrument Center
- Shanxi University
- Taiyuan
- China
| | - Xia Chen
- School of Chemistry and Chemical Engineering. Shanxi University
- Taiyuan
- China
| |
Collapse
|
30
|
Bonné C, Pahwa A, Picard C, Visseaux M. Bismuth tris-silylamide: A new non-toxic metal catalyst for the ring opening (co-)polymerization of cyclic esters under smooth conditions. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2016.06.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
31
|
Eo YS, Rhee HW, Shin S. Catalyst screening for the melt polymerization of isosorbide-based polycarbonate. J IND ENG CHEM 2016. [DOI: 10.1016/j.jiec.2016.03.007] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
32
|
Honrado M, Otero A, Fernández-Baeza J, Sánchez-Barba LF, Garcés A, Lara-Sánchez A, Rodríguez AM. Copolymerization of Cyclic Esters Controlled by Chiral NNO-Scorpionate Zinc Initiators. Organometallics 2016. [DOI: 10.1021/acs.organomet.5b00919] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Manuel Honrado
- Departamento de Química Inorgánica,
Orgánica y Bioquímica, Centro de Innovación en
Química Avanzada (ORFEO-CINQA), Campus Universitario, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
| | - Antonio Otero
- Departamento de Química Inorgánica,
Orgánica y Bioquímica, Centro de Innovación en
Química Avanzada (ORFEO-CINQA), Campus Universitario, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
| | - Juan Fernández-Baeza
- Departamento de Química Inorgánica,
Orgánica y Bioquímica, Centro de Innovación en
Química Avanzada (ORFEO-CINQA), Campus Universitario, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
| | - Luis F. Sánchez-Barba
- Departamento de Biología y Geología, Física
y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles, 28933 Madrid, Spain
| | - Andrés Garcés
- Departamento de Biología y Geología, Física
y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles, 28933 Madrid, Spain
| | - Agustín Lara-Sánchez
- Departamento de Química Inorgánica,
Orgánica y Bioquímica, Centro de Innovación en
Química Avanzada (ORFEO-CINQA), Campus Universitario, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
| | - Ana M. Rodríguez
- Departamento de Química Inorgánica,
Orgánica y Bioquímica, Centro de Innovación en
Química Avanzada (ORFEO-CINQA), Campus Universitario, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
| |
Collapse
|
33
|
|
34
|
Kan C, Ma H. Copolymerization of l-lactide and ε-caprolactone catalyzed by mono-and dinuclear salen aluminum complexes bearing bulky 6,6′-dimethylbipheyl-bridge: random and tapered copolymer. RSC Adv 2016. [DOI: 10.1039/c6ra07374c] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Mono- and dinuclear salen aluminum complexes bearing a racemic 6,6′-dimethyl-biphenyl bridge could efficiently catalyze the copolymerization of l-LA and ε-CL in the melt, producing practically random and tapered copolymers, respectively.
Collapse
Affiliation(s)
- Chao Kan
- Shanghai Key Laboratory of Functional Materials Chemistry and Laboratory of Organometallic Chemistry
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
| | - Haiyan Ma
- Shanghai Key Laboratory of Functional Materials Chemistry and Laboratory of Organometallic Chemistry
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
| |
Collapse
|
35
|
Huang HC, Wang B, Zhang YP, Li YS. Bimetallic aluminum complexes with cyclic β-ketiminato ligands: the cooperative effect improves their capability in polymerization of lactide and ε-caprolactone. Polym Chem 2016. [DOI: 10.1039/c6py01092j] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Novel binuclear aluminum complexes bearing β-ketiminato ligands were synthesized and characterized. The cooperative effect around the metal centers played a key role in improving catalytic activity.
Collapse
Affiliation(s)
- Hai-Chao Huang
- Tianjin Key Lab Composite & Functional Materials
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072
- China
| | - Bin Wang
- Tianjin Key Lab Composite & Functional Materials
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072
- China
| | - Yan-Ping Zhang
- Tianjin Key Lab Composite & Functional Materials
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072
- China
| | - Yue-Sheng Li
- Tianjin Key Lab Composite & Functional Materials
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072
- China
| |
Collapse
|
36
|
Controlled homoand copolymerization of ε-caprolactone and d,l-lactide in the presence of TiIV complexes. Russ Chem Bull 2015. [DOI: 10.1007/s11172-015-0840-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
37
|
Pilone A, De Maio N, Press K, Venditto V, Pappalardo D, Mazzeo M, Pellecchia C, Kol M, Lamberti M. Ring-opening homo- and co-polymerization of lactides and ε-caprolactone by salalen aluminum complexes. Dalton Trans 2015; 44:2157-65. [PMID: 25511585 DOI: 10.1039/c4dt02616k] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aluminum complexes of non-chiral-salalen ligands were investigated in the catalysis of ring-opening polymerization (ROP) of lactide and ε-caprolactone and in their copolymerization. The aluminum-salalen complexes were found to polymerize all varieties of lactide, namely: l-, d-, rac- and meso-lactide, and showed moderate productivities. rac-LA gave rise to isotactic polylactides (with Pm up to 72%), while meso-LA gave rise to heterotactic polylactides (with a Pm of 79%). An experiment was designed for distinguishing between chain-end control and enantiomorphic-site control combined with polymeryl exchange for the isotactic stereoblock microstructure observed for the PLA produced from rac-LA; it gave strong evidence for polymeryl exchange between propagating species. Finally, this class of catalysts promoted the copolymerization of ε-caprolactone and lactides. In particular, compound allowed controlled random copolymerization of ε-caprolactone and l-lactide.
Collapse
Affiliation(s)
- Alessia Pilone
- Dipartimento di Chimica e Biologia, Università di Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy.
| | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Gilmour DJ, Webster RL, Perry MR, Schafer LL. Titanium pyridonates for the homo- and copolymerization of rac-lactide and ε-caprolactone. Dalton Trans 2015; 44:12411-9. [DOI: 10.1039/c5dt01162k] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of titanium pyridonate complexes have been synthesized under very mild reaction conditions from a common precursor, Ti(NMe2)4. These complexes have been explored as initiators for the ring-opening polymerization of rac-lactide and ε-caprolactone and have proven to be competitive with leading titanium initiators.
Collapse
Affiliation(s)
- Damon J. Gilmour
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| | - Ruth L. Webster
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| | - Mitchell R. Perry
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| | - Laurel L. Schafer
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| |
Collapse
|
39
|
Lapenta R, Mazzeo M, Grisi F. Monoamidinate titanium complexes: highly active catalysts for the polymerization and copolymerization of l-lactide and ε-caprolactone. RSC Adv 2015. [DOI: 10.1039/c5ra15599a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
A series of titanium trichloroamidinate complexes with distinct ligand sets showed different abilities in the copolymerization of ε-caprolactone and l-lactide, producing copolymers ranging from gradient to truly random microstructures.
Collapse
Affiliation(s)
- Rosita Lapenta
- Department of Chemistry and Biology "Adolfo Zambelli"
- University of Salerno
- Salerno
- Italy
| | - Mina Mazzeo
- Department of Chemistry and Biology "Adolfo Zambelli"
- University of Salerno
- Salerno
- Italy
| | - Fabia Grisi
- Department of Chemistry and Biology "Adolfo Zambelli"
- University of Salerno
- Salerno
- Italy
| |
Collapse
|
40
|
Li L, Liu B, Liu D, Wu C, Li S, Liu B, Cui D. Copolymerization of ε-Caprolactone and l-Lactide Catalyzed by Multinuclear Aluminum Complexes: An Immortal Approach. Organometallics 2014. [DOI: 10.1021/om5008264] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lei Li
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
- Graduate School of the Chinese Academy of Sciences, Beijing 100039, People’s Republic of China
| | - Bo Liu
- College
of Materials Science and Engineering, Jilin University, Changchun 130025, People’s Republic of China
| | - Dongtao Liu
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Chunji Wu
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Shihui Li
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Bo Liu
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Dongmei Cui
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| |
Collapse
|
41
|
Della Monica F, Luciano E, Buonerba A, Grassi A, Milione S, Capacchione C. Poly(lactide-co-ε-caprolactone) copolymers prepared using bis-thioetherphenolate group 4 metal complexes: synthesis, characterization and morphology. RSC Adv 2014. [DOI: 10.1039/c4ra10255j] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
42
|
Maruta Y, Abiko A. Random copolymerization of ε-caprolactone and l-lactide with molybdenum complexes. Polym Bull (Berl) 2014. [DOI: 10.1007/s00289-014-1106-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
43
|
Zaitsev KV, Piskun YA, Oprunenko YF, Karlov SS, Zaitseva GS, Vasilenko IV, Churakov AV, Kostjuk SV. Controlled ring‐opening homo‐ and copolymerization of ɛ‐caprolactone and
d,l
‐lactide by iminophenolate aluminum complexes: An efficient approach toward well‐defined macromonomers. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27110] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Kirill V. Zaitsev
- Department of ChemistryMoscow State UniversityLeninskye Gory 1Moscow119991 Russia
| | - Yulia A. Piskun
- Research Institute for Physical Chemical Problems of the Belarusian State UniversityLeningradskaya St., 14Minsk220030 Belarus
| | - Yuri F. Oprunenko
- Department of ChemistryMoscow State UniversityLeninskye Gory 1Moscow119991 Russia
| | - Sergey S. Karlov
- Department of ChemistryMoscow State UniversityLeninskye Gory 1Moscow119991 Russia
| | - Galina S. Zaitseva
- Department of ChemistryMoscow State UniversityLeninskye Gory 1Moscow119991 Russia
| | - Irina V. Vasilenko
- Research Institute for Physical Chemical Problems of the Belarusian State UniversityLeningradskaya St., 14Minsk220030 Belarus
| | - Andrei V. Churakov
- Russian Academy Science, N.S. Kurnakov General and Inorganic Chemistry InstituteLeninskii pr., 31Moscow119991 Russia
| | - Sergei V. Kostjuk
- Research Institute for Physical Chemical Problems of the Belarusian State UniversityLeningradskaya St., 14Minsk220030 Belarus
| |
Collapse
|
44
|
Jeong Go M, Min Lee J, Mun Lee K, Hwa Oh C, Park KH, Kim SH, Kim M, Park HR, Park MH, Kim Y, Lee J. Titanium complexes containing bidentate benzotriazole ligands as catalysts for the ring opening polymerization of lactide. Polyhedron 2014. [DOI: 10.1016/j.poly.2013.09.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
45
|
Webster RL. Random copolymerisations catalysed by simple titanium α-amino acid complexes. RSC Adv 2014. [DOI: 10.1039/c3ra45810e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
46
|
Liu Y, Dong WS, Liu JY, Li YS. Living ring-opening homo- and copolymerisation of ε-caprolactone andl-lactide by cyclic β-ketiminato aluminium complexes. Dalton Trans 2014; 43:2244-51. [DOI: 10.1039/c3dt52712c] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
47
|
Fernández J, Larrañaga A, Etxeberria A, Wang W, Sarasua JR. A new generation of poly(lactide/ε-caprolactone) polymeric biomaterials for application in the medical field. J Biomed Mater Res A 2013; 102:3573-84. [PMID: 24243562 DOI: 10.1002/jbm.a.35036] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 11/05/2013] [Accepted: 11/06/2013] [Indexed: 11/08/2022]
Abstract
Thermoplastic biodegradable polymers displaying an elastomeric behavior are greatly valued for the regeneration of soft tissues and for various medical devices. In this work, terpolymers composed of ε-caprolactone (CL), D-lactide (D-LA), and L-lactide (L-LA) were synthesized. These poly(lactide-ε-caprolactone) (PLCLs) presented an elevated randomness character (R∼1), glass transition temperatures (Tg ) higher than 20°C and adjusted L-LA content. In this way, the L-LA average sequence length (/L-LA ) was reduced to below 3.62 and showed little or no crystallization capability during in vitro degradation. As a result, the obtained materials underwent homogenous degradation exhibiting KMw ranging from 0.030 to 0.066 d(-1) and without generation of crystalline remnants in advanced stages of degradation. Mechanical performance was maintained over a period of 21 days for a rac-lactide-ε-caprolactone copolymer composed of ∼85% D,L-LA and ∼15% CL and also for a terpolymer composed of ∼72% L-LA, ∼12% D-LA and ∼16% CL. Terpolymers having L-LA content from ∼60 to 70% and CL content from ∼10 to 27% were also studied. In view of the results, those materials having CL and D-LA units disrupting the microstructural arrangement of the L-LA crystallizable chains, an L-LA content <72% and a random distribution of sequences, may display proper and tunable mechanical behavior and degradation performance for a large number of medical applications. Those with a CL content from 15 to 30% will fulfill the demand of elastomeric materials of Tg higher than 20°C whereas those with a CL content from 5 to 15% might be applied as ductile stiff materials.
Collapse
Affiliation(s)
- J Fernández
- Department of Mining-Metallurgy Engineering and Materials Science, POLYMAT, University of the Basque Country (UPV/EHU), School of Engineering, Alameda de Urquijo s/n., 48013, Bilbao, Spain
| | | | | | | | | |
Collapse
|
48
|
D'Auria I, Lamberti M, Mazzeo M, Milione S, Pellecchia C. Phosphido-diphosphine pincer aluminum complexes as catalysts for ring opening polymerization of cyclic esters. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26969] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ilaria D'Auria
- Department of Chemistry and Biology; University of Salerno. I-84084, Via Giovanni Paolo II; 132, Fisciano I-84084 Salerno Italy
| | - Marina Lamberti
- Department of Chemistry and Biology; University of Salerno. I-84084, Via Giovanni Paolo II; 132, Fisciano I-84084 Salerno Italy
| | - Mina Mazzeo
- Department of Chemistry and Biology; University of Salerno. I-84084, Via Giovanni Paolo II; 132, Fisciano I-84084 Salerno Italy
| | - Stefano Milione
- Department of Chemistry and Biology; University of Salerno. I-84084, Via Giovanni Paolo II; 132, Fisciano I-84084 Salerno Italy
| | - Claudio Pellecchia
- Department of Chemistry and Biology; University of Salerno. I-84084, Via Giovanni Paolo II; 132, Fisciano I-84084 Salerno Italy
| |
Collapse
|
49
|
Fernández J, Meaurio E, Chaos A, Etxeberria A, Alonso-Varona A, Sarasua J. Synthesis and characterization of poly (l-lactide/ε-caprolactone) statistical copolymers with well resolved chain microstructures. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.03.009] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
50
|
Webster RL, Noroozi N, Hatzikiriakos SG, Thomson JA, Schafer LL. Titanium pyridonates and amidates: novel catalysts for the synthesis of random copolymers. Chem Commun (Camb) 2013; 49:57-9. [DOI: 10.1039/c2cc37201k] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|