51
|
Fliedel C, Rosa V, Alves FM, Martins AM, Avilés T, Dagorne S. P,O-Phosphinophenolate zinc(II) species: synthesis, structure and use in the ring-opening polymerization (ROP) of lactide, ε-caprolactone and trimethylene carbonate. Dalton Trans 2016; 44:12376-87. [PMID: 25847079 DOI: 10.1039/c5dt00458f] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The P,O-type phosphinophenol proligands (1·H, 2-PPh2-4-Me-6-Me-C6H2OH; 2·H, 2-PPh2-4-Me-6-(t)Bu-C6H2OH) readily react with one equiv. of ZnEt2 to afford in high yields the corresponding Zn(II)-ethyl dimers of the type [(κ(2)-P,O)Zn-Et]2 (3 and 4) with two μ-OPh bridging oxygens connecting the two Zn(II) centers, as determined by X-ray diffraction (XRD) studies in the case of 3. Based on diffusion-ordered NMR spectroscopy (DOSY), both species 3 and 4 retain their dimeric structures in solution. The alcoholysis reaction of Zn(II) alkyls 3 and 4 with BnOH led to the high yield formation of the corresponding Zn(II) benzyloxide species [(κ(2)-P,O)Zn-OBn]2 (5 and 6), isolated in a pure form as colorless solids. The centrosymmetric and dimeric nature of Zn(II) alkoxides 5 and 6 in solution was deduced from DOSY NMR experiments and multinuclear NMR data. Though the heteroleptic species 5 is stable in solution, its analogue 6 is instable in CH2Cl2 solution at room temperature to slowly decompose to the corresponding homoleptic species 8via the transient formation of (κ(2)-P,O)2Zn2(μ-OBn)(μ–κ(1):κ(1)-P,O) (6′). Crystallization of compound 6 led to crystals of 6′, as established by XRD analysis. The reaction of ZnEt2 with two equiv. of 1·H and 2·H allowed access to the corresponding homoleptic species of the type [Zn(P,O)2] (7 and 8). All gathered data are consistent with compound 7 being a dinuclear species in the solid state and in solution. Data for species 8, which bears a sterically demanding P,O-ligand, are consistent with a mononuclear species in solution. The Zn(II) alkoxide species 5 and the [Zn(P,O)2]-type compounds 7 and 8 were evaluated as initiators of the ring-opening polymerization (ROP) of lactide (LA), ε-caprolactone (ε-CL) and trimethylene carbonate (TMC). Species 5 is a well-behaved ROP initiator for the homo-, co- and ter-polymerization of all three monomers with the production of narrow disperse materials under living and immortal conditions. Though species 7 and 8 are ROP inactive on their own, they readily polymerize LA in the presence of a nucleophile such as BnOH to produce narrow disperse PLA, presumably via an activated-monomer ROP mechanism.
Collapse
Affiliation(s)
- Christophe Fliedel
- LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Caparica, 2829-516, Portugal
| | | | | | | | | | | |
Collapse
|
52
|
Wilson JA, Hopkins SA, Wright PM, Dove AP. Dependence of Copolymer Sequencing Based on Lactone Ring Size and ε-Substitution. ACS Macro Lett 2016; 5:346-350. [PMID: 35614702 DOI: 10.1021/acsmacrolett.5b00940] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The copolymerization of an ε-substituted ε-lactone, menthide (MI), and a range of nonsubstituted lactones (6-, 7-, 8-, and 9-membered rings) was investigated in order to determine the factors that affect the sequencing of the MI copolymers. Analysis by quantitative 13C NMR spectroscopy showed the copolymerization of MI with a nonsubstituted lactone of ring size 7 or less produced a randomly sequenced copolymer, as a consequence of the smaller lactone polymerizing first and undergoing rapid transesterification as MI was incorporated. Conversely, copolymerization with larger ring lactones (ring size 8 and above) produced block-like copolymers as a consequence of MI polymerizing initially, which does not undergo rapid transesterification side reactions during the incorporation of the second monomer. Terpolymerizations of a small ring lactone, macrolactone, and menthide demonstrated methods of producing lactone terpolymers with different final sequences, depending on when the small ring lactone was injected into the reaction mixture.
Collapse
Affiliation(s)
- J. A. Wilson
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, United Kingdom
| | - S. A. Hopkins
- Infineum UK Ltd., Milton
Hill, Abingdon, OX13 6BB, United Kingdom
| | - P. M. Wright
- Infineum UK Ltd., Milton
Hill, Abingdon, OX13 6BB, United Kingdom
| | - A. P. Dove
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, United Kingdom
| |
Collapse
|
53
|
Barouti G, Khalil A, Orione C, Jarnouen K, Cammas-Marion S, Loyer P, Guillaume SM. Poly(trimethylene carbonate)/Poly(malic acid) Amphiphilic Diblock Copolymers as Biocompatible Nanoparticles. Chemistry 2016; 22:2819-30. [PMID: 26791328 DOI: 10.1002/chem.201504824] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Indexed: 12/18/2022]
Abstract
Amphiphilic polycarbonate-poly(hydroxyalkanoate) diblock copolymers, namely, poly(trimethylene carbonate) (PTMC)-b-poly(β-malic acid) (PMLA), are reported for the first time. The synthetic strategy relies on commercially available catalysts and initiator. The controlled ring-opening polymerization (ROP) of trimethylene carbonate (TMC) catalyzed by the organic guanidine base 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD), associated with iPrOH as an initiator, provided iPrO-PTMC-OH, which served as a macroinitiator in the controlled ROP of benzyl β-malolactonate (MLABe) catalyzed by the neodymium triflate salt (Nd(OTf)3). The resulting hydrophobic iPrO-PTMC-b-PMLABe-OH copolymers were then hydrogenolyzed into the parent iPrO-PTMC-b-PMLA-OH copolymers. A range of well-defined copolymers, featuring different sizes of segments (Mn,NMR up to 9300 g mol(-1) ; ÐM =1.28-1.40), were thus isolated in gram quantities, as evidenced by NMR spectroscopy, size exclusion chromatography, thermogravimetric analysis, differential scanning calorimetry, and contact angle analyses. Subsequently, PTMC-b-PMLA copolymers with different hydrophilic weight fractions (11-75 %) self-assembled in phosphate-buffered saline upon nanoprecipitation into well-defined nano-objects with Dh =61-176 nm, a polydispersity index <0.25, and a negative surface charge, as characterized by dynamic light scattering and zeta-potential analyses. In addition, these nanoparticles demonstrated no significant effect on cell viability at low concentrations, and a very low cytotoxicity at high concentrations only for PTMC-b-PMLA copolymers exhibiting hydrophilic fractions over 47 %, thus illustrating the potential of these copolymers as promising nanoparticles.
Collapse
Affiliation(s)
- Ghislaine Barouti
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS, Université de Rennes 1, Campus de Beaulieu, 263 Avenue du Général Leclerc, 35042, Rennes Cedex, France
| | - Ali Khalil
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS, Université de Rennes 1, Campus de Beaulieu, 263 Avenue du Général Leclerc, 35042, Rennes Cedex, France
| | - Clement Orione
- Centre Régional de Mesures Physiques de l'Ouest, Université de Rennes 1, Campus de Beaulieu, 35042, Rennes Cedex, France
| | - Kathleen Jarnouen
- INSERM, UMR991, Liver, Metabolisms and Cancer, CHU Pontchaillou, 35033 Rennes Cedex -, Université de Rennes 1, 35043, Rennes Cedex, France
| | - Sandrine Cammas-Marion
- Ecole Nationale Supérieure de Chimie de Rennes, Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS, Université de Rennes 1, 11 Allée de Beaulieu CS 50837, 35708, Rennes Cedex, France
| | - Pascal Loyer
- INSERM, UMR991, Liver, Metabolisms and Cancer, CHU Pontchaillou, 35033 Rennes Cedex -, Université de Rennes 1, 35043, Rennes Cedex, France
| | - Sophie M Guillaume
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS, Université de Rennes 1, Campus de Beaulieu, 263 Avenue du Général Leclerc, 35042, Rennes Cedex, France.
| |
Collapse
|
54
|
Delle Chiaie KR, Yablon LM, Biernesser AB, Michalowski GR, Sudyn AW, Byers JA. Redox-triggered crosslinking of a degradable polymer. Polym Chem 2016. [DOI: 10.1039/c6py00975a] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A unique redox-triggered crosslinking reaction is disclosed that capitalizes on the orthogonal reactivity of an iron-based catalyst for the ring opening polymerization of cyclic diesters and epoxides.
Collapse
Affiliation(s)
- Kayla R. Delle Chiaie
- Department of Chemistry
- Boston College
- Eugene F. Merkert Chemistry Center
- Chestnut Hill
- USA
| | - Lauren M. Yablon
- Department of Chemistry
- Boston College
- Eugene F. Merkert Chemistry Center
- Chestnut Hill
- USA
| | - Ashley B. Biernesser
- Department of Chemistry
- Boston College
- Eugene F. Merkert Chemistry Center
- Chestnut Hill
- USA
| | | | - Alexander W. Sudyn
- Department of Chemistry
- Boston College
- Eugene F. Merkert Chemistry Center
- Chestnut Hill
- USA
| | - Jeffery A. Byers
- Department of Chemistry
- Boston College
- Eugene F. Merkert Chemistry Center
- Chestnut Hill
- USA
| |
Collapse
|
55
|
Fernández J, Etxeberria A, Sarasua JR. Synthesis and properties of ω-pentadecalactone-co-δ-hexalactone copolymers: a biodegradable thermoplastic elastomer as an alternative to poly(ε-caprolactone). RSC Adv 2016. [DOI: 10.1039/c5ra23404b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The copolymerization of ω-pentadecalactone with δ-hexalactone creates a new kind of low glass transition polyester that shows improved biodegradability and flexibility in comparison to poly(ε-caprolactone) (PCL).
Collapse
Affiliation(s)
- Jorge Fernández
- Department of Mining-Metallurgy Engineering and Materials Science
- POLYMAT
- University of the Basque Country (UPV/EHU)
- School of Engineering
- 48013 Bilbao
| | - Agustin Etxeberria
- Department of Polymer Science and Technology
- POLYMAT
- University of the Basque Country (UPV/EHU)
- 20018 Donostia-San Sebastian
- Spain
| | - Jose-Ramon Sarasua
- Department of Mining-Metallurgy Engineering and Materials Science
- POLYMAT
- University of the Basque Country (UPV/EHU)
- School of Engineering
- 48013 Bilbao
| |
Collapse
|
56
|
Hessevik J, Lalrempuia R, Nsiri H, Törnroos KW, Jensen VR, Le Roux E. Sterically (un)encumbered mer-tridentate N-heterocyclic carbene complexes of titanium(iv) for the copolymerization of cyclohexene oxide with CO2. Dalton Trans 2016; 45:14734-44. [DOI: 10.1039/c6dt01706a] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Titanium(iv) complexes bearing an unsubstituted tridentate bis(phenolate) N-heterocyclic carbene (NHC) were synthesized and structurally identified.
Collapse
Affiliation(s)
| | | | - Hajar Nsiri
- University of Bergen
- Department of Chemistry
- Bergen
- Norway
| | | | | | - Erwan Le Roux
- University of Bergen
- Department of Chemistry
- Bergen
- Norway
| |
Collapse
|
57
|
|
58
|
Wang H, Guo J, Yang Y, Ma H. Diastereoselective synthesis of chiral aminophenolate magnesium complexes and their application in the stereoselective polymerization of rac-lactide and rac-β-butyrolactone. Dalton Trans 2016; 45:10942-53. [DOI: 10.1039/c6dt01126h] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A series of magnesium silylamido complexes supported by chiral aminophenolate ligands were synthesized, and their catalytic behaviors toward the ring-opening polymerization of rac-lactide (LA) and rac-β-butyrolactone (BBL) were explored.
Collapse
Affiliation(s)
- Haobing Wang
- 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
| | - Jianshuang Guo
- 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
| | - Yang Yang
- 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
|
59
|
Horeglad P, Cybularczyk M, Litwińska A, Dąbrowska AM, Dranka M, Żukowska GZ, Urbańczyk M, Michalak M. Controlling the stereoselectivity of rac-LA polymerization by chiral recognition induced the formation of homochiral dimeric metal alkoxides. Polym Chem 2016. [DOI: 10.1039/c5py02005k] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Chiral recognition of monomeric Me2MOR units resulting in the formation of homochiral dimeric species [Me2M(μ-OR)]2(M = Ga, In), leads to heteroselective catalysts for the ring opening polymerization ofrac-lactide (rac-LA).
Collapse
Affiliation(s)
- P. Horeglad
- Centre of New Technologies
- University of Warsaw
- 02-097 Warsaw
- Poland
| | - M. Cybularczyk
- Centre of New Technologies
- University of Warsaw
- 02-097 Warsaw
- Poland
- Faculty of Chemistry
| | - A. Litwińska
- Faculty of Chemistry
- University of Warsaw
- 02-093 Warsaw
- Poland
| | - A. M. Dąbrowska
- Centre of New Technologies
- University of Warsaw
- 02-097 Warsaw
- Poland
- Faculty of Chemistry
| | - M. Dranka
- Faculty of Chemistry
- Warsaw University of Technology
- Warsaw
- Poland
| | - G. Z. Żukowska
- Faculty of Chemistry
- Warsaw University of Technology
- Warsaw
- Poland
| | - M. Urbańczyk
- Centre of New Technologies
- University of Warsaw
- 02-097 Warsaw
- Poland
- Faculty of Chemistry
| | - M. Michalak
- Institute of Organic Chemistry
- Polish Academy of Science
- 01-224 Warsaw
- Poland
| |
Collapse
|
60
|
Sumrit P, Chuawong P, Nanok T, Duangthongyou T, Hormnirun P. Aluminum complexes containing salicylbenzoxazole ligands and their application in the ring-opening polymerization of rac-lactide and ε-caprolactone. Dalton Trans 2016; 45:9250-66. [DOI: 10.1039/c6dt00990e] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two series of aluminum complexes supported by salicylbenzoxazole ligands were successfully synthesized and applied as active initiators for the ring-opening polymerization of rac-LA and ε-CL.
Collapse
Affiliation(s)
- Pattarawut Sumrit
- Laboratory of Catalysts and Advanced Polymer Materials
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Kasetsart University
- Bangkok 10900
| | - Pitak Chuawong
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- and Special Research Unit for Advanced Magnetic Resonance (AMR)
- Kasetsart University
- Bangkok 10900
| | - Tanin Nanok
- Department of Chemistry
- Faculty of Science
- Kasetsart University
- Bangkok 10900
- Thailand
| | | | - Pimpa Hormnirun
- Laboratory of Catalysts and Advanced Polymer Materials
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Kasetsart University
- Bangkok 10900
| |
Collapse
|
61
|
Huang BH, Tsai CY, Chen CT, Ko BT. Metal complexes containing nitrogen-heterocycle based aryloxide or arylamido derivatives as discrete catalysts for ring-opening polymerization of cyclic esters. Dalton Trans 2016; 45:17557-17580. [DOI: 10.1039/c6dt03384a] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
This perspective highlights some recent advances in the field of discrete N-heterocyclic aryloxide/arylamido metal complexes for ROP of lactones.
Collapse
Affiliation(s)
- Bor-Hunn Huang
- Department of Chemistry
- National Chung Hsing University
- Taichung 402
- Taiwan
| | - Chen-Yen Tsai
- Department of Chemistry
- National Chung Hsing University
- Taichung 402
- Taiwan
| | - Chi-Tien Chen
- Department of Chemistry
- National Chung Hsing University
- Taichung 402
- Taiwan
| | - Bao-Tsan Ko
- Department of Chemistry
- National Chung Hsing University
- Taichung 402
- Taiwan
| |
Collapse
|
62
|
Kottalanka RK, Harinath A, Rej S, Panda TK. Group 1 and group 2 metal complexes supported by a bidentate bulky iminopyrrolyl ligand: synthesis, structural diversity, and ε-caprolactone polymerization study. Dalton Trans 2015; 44:19865-79. [PMID: 26511076 DOI: 10.1039/c5dt03222a] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
We report here a series of alkali and alkaline earth metal complexes, each with a bulky iminopyrrolyl ligand [2-(Ph3CN=CH)C4H3NH] (1-H) moiety in their coordination sphere, synthesized using either alkane elimination or silylamine elimination methods or the salt metathesis route. The lithium salt of molecular composition [Li(2-(Ph3CN=CH)C4H3N)(THF)2] (2) was prepared using the alkane elimination method, and the silylamine elimination method was used to synthesize the dimeric sodium and tetra-nuclear potassium salts of composition [(2-(Ph3CN=CH)C4H3N)Na(THF)]2 (3) and [(2-(Ph3CN=CH)C4H3N)K(THF)0.5]4 (4) respectively. The magnesium complex of composition [(THF)2Mg(CH2Ph){2-(Ph3CN=CH)C4H3N}] (5) was synthesized through the alkane elimination method, in which [Mg(CH2Ph)2(OEt2)2] was treated with the bulky iminopyrrole ligand 1-H in 1 : 1 molar ratio, whereas the bis(iminopyrrolyl)magnesium complex [(THF)2Mg{2-(Ph3CN=CH)C4H3N}2] (6) was isolated using the salt metathesis route. The heavier alkaline earth metal complexes of the general formula {(THF)nM(2-(Ph3CN=CH)C4H3N)2} [M = Ca (7), Sr (8), and n = 2; M = Ba (9), n = 3] were prepared in pure form using two synthetic methods: in the first method, the bulky iminopyrrole ligand 1-H was directly treated with the alkaline earth metal precursor [M{N(SiMe3)2}2(THF)n] (where M = Ca, Sr and Ba) in 2 : 1 molar ratio in THF solvent at ambient temperature. The complexes 7-9 were also obtained using the salt metathesis reaction, which involves the treatment of the potassium salt (4) with the corresponding metal diiodides MI2 (M = Ca, Sr and Ba) in 2 : 1 molar ratio in THF solvent. The molecular structures of all the metal complexes (1-H, 2-9) in the solid state were established through single-crystal X-ray diffraction analysis. The complexes 5-9 were tested as catalysts for the ring-opening polymerization of ε-caprolactone. High activity was observed in the heavier alkaline earth metal complexes 7-9, with a very narrow polydispersity index in comparison to that of magnesium complexes 5 and 6.
Collapse
Affiliation(s)
- Ravi K Kottalanka
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi - 502 285, Sangareddy, Telangana, India.
| | - A Harinath
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi - 502 285, Sangareddy, Telangana, India.
| | - Supriya Rej
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi - 502 285, Sangareddy, Telangana, India.
| | - Tarun K Panda
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi - 502 285, Sangareddy, Telangana, India.
| |
Collapse
|
63
|
Deng E, Nguyen NT, Hild F, Hamilton IE, Dimitrakis G, Kingman SW, Lau PL, Irvine DJ. Molecular Differentiated Initiator Reactivity in the Synthesis of Poly(caprolactone)-Based Hydrophobic Homopolymer and Amphiphilic Core Corona Star Polymers. Molecules 2015; 20:20131-45. [PMID: 26569198 PMCID: PMC6332146 DOI: 10.3390/molecules201119681] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 10/26/2015] [Accepted: 10/27/2015] [Indexed: 11/16/2022] Open
Abstract
Macromolecules that possess three-dimensional, branched molecular structures are of great interest because they exhibit significantly differentiated application performance compared to conventional linear (straight chain) polymers. This paper reports the synthesis of 3- and 4-arm star branched polymers via ring opening polymerisation (ROP) utilising multi-functional hydroxyl initiators and Sn(Oct)2 as precatalyst. The structures produced include mono-functional hydrophobic and multi-functional amphiphilic core corona stars. The characteristics of the synthetic process were shown to be principally dependent upon the physical/dielectric properties of the initiators used. ROP's using initiators that were more available to become directly involved with the Sn(Oct)₂ in the "in-situ" formation of the true catalytic species were observed to require shorter reaction times. Use of microwave heating (MWH) in homopolymer star synthesis reduced reaction times compared to conventional heating (CH) equivalents, this was attributed to an increased rate of "in-situ" catalyst formation. However, in amphiphilic core corona star formation, the MWH polymerisations exhibited slower propagation rates than CH equivalents. This was attributed to macro-structuring within the reaction medium, which reduced the potential for reaction. It was concluded that CH experiments were less affected by this macro-structuring because it was disrupted by the thermal currents/gradients caused by the conductive/convective heating mechanisms. These gradients are much reduced/absent with MWH because it selectively heats specific species simultaneously throughout the entire volume of the reaction medium. These partitioning problems were overcome by introducing additional quantities of the species that had been determined to selectively heat.
Collapse
Affiliation(s)
- Eileen Deng
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK.
| | - Nam T Nguyen
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK.
- School of Chemistry, University of Nottingham, Nottingham NG7 2RD, UK.
| | - Frédéric Hild
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK.
- School of Chemistry, University of Nottingham, Nottingham NG7 2RD, UK.
| | - Ian E Hamilton
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK.
| | - Georgios Dimitrakis
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK.
| | - Samuel W Kingman
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK.
| | - Phei-Li Lau
- Department of Chemical and Environmental Engineering, University of Nottingham Malaysia Campus, Jalan Broga, Semenyih 43500, Selangor Darul Ehsan, Malaysia.
| | - Derek J Irvine
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK.
| |
Collapse
|
64
|
Group 4 complexes bearing bis(salphen) ligands: Synthesis, characterization, and polymerization studies. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27918] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
65
|
Hedir GG, Pitto-Barry A, Dove AP, O'Reilly RK. Amphiphilic block copolymer self-assemblies of poly(NVP)-b-poly(MDO-co-vinyl esters): Tunable dimensions and functionalities. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27915] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Guillaume G. Hedir
- Department of Chemistry; University of Warwick; Gibbet Hill Road Coventry CV4 7AL United Kingdom
| | - A. Pitto-Barry
- Department of Chemistry; University of Warwick; Gibbet Hill Road Coventry CV4 7AL United Kingdom
| | - Andrew P. Dove
- Department of Chemistry; University of Warwick; Gibbet Hill Road Coventry CV4 7AL United Kingdom
| | - Rachel K. O'Reilly
- Department of Chemistry; University of Warwick; Gibbet Hill Road Coventry CV4 7AL United Kingdom
| |
Collapse
|
66
|
Bednarek M, Basko M, Biedron T, Wojtczak E, Michalski A. Polymerization of lactide initiated by primary amines and catalyzed by a protic acid. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.08.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
67
|
Tabthong S, Nanok T, Sumrit P, Kongsaeree P, Prabpai S, Chuawong P, Hormnirun P. Bis(pyrrolidene) Schiff Base Aluminum Complexes as Isoselective-Biased Initiators for the Controlled Ring-Opening Polymerization of rac-Lactide: Experimental and Theoretical Studies. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01381] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
| | | | | | - Palangpon Kongsaeree
- Department
of Chemistry and Center for Excellence in Protein Structure and Function,
Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Samran Prabpai
- Department
of Chemistry and Center for Excellence in Protein Structure and Function,
Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | | | | |
Collapse
|
68
|
García-Gallego S, Nyström AM, Malkoch M. Chemistry of multifunctional polymers based on bis-MPA and their cutting-edge applications. Prog Polym Sci 2015. [DOI: 10.1016/j.progpolymsci.2015.04.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
69
|
Horeglad P, Cybularczyk M, Trzaskowski B, Żukowska GZ, Dranka M, Zachara J. Dialkylgallium Alkoxides Stabilized with N-Heterocyclic Carbenes: Opportunities and Limitations for the Controlled and Stereoselective Polymerization of rac-Lactide. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00071] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Paweł Horeglad
- Centre
of New Technologies, University of Warsaw, Banacha 2c, 02-097 Warsaw, Poland
| | - Martyna Cybularczyk
- Centre
of New Technologies, University of Warsaw, Banacha 2c, 02-097 Warsaw, Poland
- Faculty
of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Bartosz Trzaskowski
- Centre
of New Technologies, University of Warsaw, Banacha 2c, 02-097 Warsaw, Poland
| | - Grażyna Zofia Żukowska
- Faculty
of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Maciej Dranka
- Faculty
of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Janusz Zachara
- Faculty
of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| |
Collapse
|
70
|
Hedir G, Bell CA, O’Reilly RK, Dove AP. Functional Degradable Polymers by Radical Ring-Opening Copolymerization of MDO and Vinyl Bromobutanoate: Synthesis, Degradability and Post-Polymerization Modification. Biomacromolecules 2015; 16:2049-58. [PMID: 25997518 PMCID: PMC4502671 DOI: 10.1021/acs.biomac.5b00476] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 05/14/2015] [Indexed: 11/28/2022]
Abstract
The synthesis of vinyl bromobutanoate (VBr), a new vinyl acetate monomer derivative obtained by the palladium-catalyzed vinyl exchange reaction between vinyl acetate (VAc) and 4-bromobutyric acid is reported. The homopolymerization of this new monomer using the RAFT/MADIX polymerization technique leads to the formation of novel well-defined and controlled polymers containing pendent bromine functional groups able to be modified via postpolymerization modification. Furthermore, the copolymerization of vinyl bromobutanoate with 2-methylene-1,3-dioxepane (MDO) was also performed to deliver a range of novel functional degradable copolymers, poly(MDO-co-VBr). The copolymer composition was shown to be able to be tuned to vary the amount of ester repeat units in the polymer backbone, and hence determine the degradability, while maintaining a control of the final copolymers' molar masses. The addition of functionalities via simple postpolymerization modifications such as azidation and the 1,3-dipolar cycloaddition of a PEG alkyne to an azide is also reported and proven by (1)H NMR spectroscopy, FTIR spectroscopy, and SEC analyses. These studies enable the formation of a novel class of hydrophilic functional degradable copolymers using versatile radical polymerization methods.
Collapse
Affiliation(s)
- Guillaume
G. Hedir
- Department
of Chemistry, University of Warwick, Gibbet Hill, Coventry, CV4 7AL, United
Kingdom
| | - Craig A. Bell
- Department
of Chemistry, University of Warwick, Gibbet Hill, Coventry, CV4 7AL, United
Kingdom
- Australian Institute for Bioengineering
and Nanotechnology and Centre for Advanced
Imaging, The University of Queensland, St. Lucia, Queensland 4072, Australia
| | - Rachel K. O’Reilly
- Department
of Chemistry, University of Warwick, Gibbet Hill, Coventry, CV4 7AL, United
Kingdom
| | - Andrew P. Dove
- Department
of Chemistry, University of Warwick, Gibbet Hill, Coventry, CV4 7AL, United
Kingdom
| |
Collapse
|
71
|
Honrado M, Otero A, Fernández-Baeza J, Sánchez-Barba LF, Garcés A, Lara-Sánchez A, Martínez-Ferrer J, Sobrino S, Rodríguez AM. New Racemic and Single Enantiopure Hybrid Scorpionate/Cyclopentadienyl Magnesium and Zinc Initiators for the Stereoselective ROP of Lactides. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00248] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [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
| | - Jaime Martínez-Ferrer
- 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
| | - Sonia Sobrino
- 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
|
72
|
Gu W, Xu P, Wang Y, Yao Y, Yuan D, Shen Q. Synthesis and Characterization of Yttrium and Ytterbium Complexes Supported by Salen Ligands and Their Catalytic Properties for rac-Lactide Polymerization. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00223] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Weikai Gu
- Key
Laboratory of Organic Synthesis of Jiangsu Province and Suzhou Key
Laboratory of Macromolecular Design and Precision Synthesis, College
of Chemistry, Chemical Engineering and Materials Science, Dushu Lake
Campus, Soochow University, Suzhou 215123 People’s Republic of China
| | - Pengfei Xu
- Key
Laboratory of Organic Synthesis of Jiangsu Province and Suzhou Key
Laboratory of Macromolecular Design and Precision Synthesis, College
of Chemistry, Chemical Engineering and Materials Science, Dushu Lake
Campus, Soochow University, Suzhou 215123 People’s Republic of China
| | - Yaorong Wang
- Key
Laboratory of Organic Synthesis of Jiangsu Province and Suzhou Key
Laboratory of Macromolecular Design and Precision Synthesis, 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 Suzhou Key
Laboratory of Macromolecular Design and Precision Synthesis, 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
| | - Dan Yuan
- Key
Laboratory of Organic Synthesis of Jiangsu Province and Suzhou Key
Laboratory of Macromolecular Design and Precision Synthesis, College
of Chemistry, Chemical Engineering and Materials Science, Dushu Lake
Campus, Soochow University, Suzhou 215123 People’s Republic of China
| | - Qi Shen
- Key
Laboratory of Organic Synthesis of Jiangsu Province and Suzhou Key
Laboratory of Macromolecular Design and Precision Synthesis, College
of Chemistry, Chemical Engineering and Materials Science, Dushu Lake
Campus, Soochow University, Suzhou 215123 People’s Republic of China
| |
Collapse
|
73
|
Li M, Chen M, Chen C. Ring-opening polymerization of rac-lactide using anilinotropone-based aluminum complexes-sidearm effect on the catalysis. POLYMER 2015. [DOI: 10.1016/j.polymer.2014.11.060] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
74
|
Zhu Y, Romain C, Poirier V, Williams CK. Influences of a Dizinc Catalyst and Bifunctional Chain Transfer Agents on the Polymer Architecture in the Ring-Opening Polymerization of ε-Caprolactone. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00225] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Yunqing Zhu
- Department of Chemistry, Imperial College London, London SW7 2AZ, U.K
| | - Charles Romain
- Department of Chemistry, Imperial College London, London SW7 2AZ, U.K
| | - Valentin Poirier
- Department of Chemistry, Imperial College London, London SW7 2AZ, U.K
| | | |
Collapse
|
75
|
Borchmann DE, Tarallo R, Avendano S, Falanga A, Carberry TP, Galdiero S, Weck M. Membranotropic Peptide-Functionalized Poly(lactide)-graft-poly(ethylene glycol) Brush Copolymers for Intracellular Delivery. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00173] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Dorothee E. Borchmann
- Molecular
Design Institute and Department of Chemistry, New York University, New York, New York 10003, United States
| | - Rossella Tarallo
- Molecular
Design Institute and Department of Chemistry, New York University, New York, New York 10003, United States
| | - Sarha Avendano
- Molecular
Design Institute and Department of Chemistry, New York University, New York, New York 10003, United States
| | - Annarita Falanga
- Department
of Pharmacy, University of Naples “Federico II”, Via Mezzocannone
16, Naples 80134, Italy
| | - Tom P. Carberry
- Molecular
Design Institute and Department of Chemistry, New York University, New York, New York 10003, United States
| | - Stefania Galdiero
- Department
of Pharmacy, University of Naples “Federico II”, Via Mezzocannone
16, Naples 80134, Italy
| | - Marcus Weck
- Molecular
Design Institute and Department of Chemistry, New York University, New York, New York 10003, United States
| |
Collapse
|
76
|
Jasinska-Walc L, Bouyahyi M, Rozanski A, Graf R, Hansen MR, Duchateau R. Synthetic Principles Determining Local Organization of Copolyesters Prepared from Lactones and Macrolactones. Macromolecules 2015. [DOI: 10.1021/ma502262e] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Lidia Jasinska-Walc
- SABIC Technology & Innovation, STC Geleen, Urmonderbaan 22, Geleen, The Netherlands
- Department
of Polymer Technology, Chemical Faculty, Gdansk University of Technology, G. Narutowicza Str. 11/12, 80-233 Gdansk, Poland
| | - Miloud Bouyahyi
- SABIC Technology & Innovation, STC Geleen, Urmonderbaan 22, Geleen, The Netherlands
| | - Artur Rozanski
- Centre
of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Robert Graf
- Max Planck Institute
for Polymer Research, Ackermannweg
10, 55128 Mainz, Germany
| | - Michael Ryan Hansen
- Max Planck Institute
for Polymer Research, Ackermannweg
10, 55128 Mainz, Germany
- Department
of Chemistry, Interdisciplinary Nanoscience Center (iNANO), Gustav
Wieds Vej 14, DK-8000 Aarhus C, Denmark
| | - Rob Duchateau
- SABIC Technology & Innovation, STC Geleen, Urmonderbaan 22, Geleen, The Netherlands
| |
Collapse
|
77
|
Xiong J, Zhang J, Sun Y, Dai Z, Pan X, Wu J. Iso-selective ring-opening polymerization of rac-lactide catalyzed by crown ether complexes of sodium and potassium naphthalenolates. Inorg Chem 2015; 54:1737-43. [PMID: 25597469 DOI: 10.1021/ic502685f] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Two crown ether complexes of sodium and potassium naphthalenolates were synthesized and entirely characterized. The two complexes can iso-selectively catalyze the ring-opening polymerization (ROP) of rac-lactide at room temperature and afford polylactides with desired molecular weights and narrow PDIs; the best isotacticity (Pm) achieved was 0.73.
Collapse
Affiliation(s)
- Jiao Xiong
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University , Lanzhou 730000, People's Republic of China
| | | | | | | | | | | |
Collapse
|
78
|
Zeng T, Qian Q, Zhao B, Yuan D, Yao Y, Shen Q. Synthesis and characterization of rare-earth metal guanidinates stabilized by amine-bridged bis(phenolate) ligands and their application in the controlled polymerization of rac-lactide and rac-β-butyrolactone. RSC Adv 2015. [DOI: 10.1039/c5ra10151d] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Eight rare-earth metal guanidinates supported by a versatile family of bridged bis(phenolate) ligands were synthesized, and their application in initiating stereoselective ROP of rac-lactide and rac-β-butyrolactone were investigated and compared.
Collapse
Affiliation(s)
- Tinghua Zeng
- Key Laboratory of Organic Synthesis of Jiangsu Province and Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Qinqin Qian
- Key Laboratory of Organic Synthesis of Jiangsu Province and Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Bei Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province and Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Dan Yuan
- Key Laboratory of Organic Synthesis of Jiangsu Province and Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Yingming Yao
- Key Laboratory of Organic Synthesis of Jiangsu Province and Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Qi Shen
- Key Laboratory of Organic Synthesis of Jiangsu Province and Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| |
Collapse
|
79
|
Cui Y, Gu W, Wang Y, Zhao B, Yao Y, Shen Q. Synthesis and characterization of rare-earth metal complexes supported by a new pentadentate Schiff base and their application in heteroselective polymerization of rac-lactide. Catal Sci Technol 2015. [DOI: 10.1039/c5cy00322a] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Both rare-earth metal salen aryloxides and amides can efficiently initiate the ring-opening polymerization of rac-lactide to give heterotactic-rich polylactides.
Collapse
Affiliation(s)
- Yu Cui
- Key Laboratory of Organic Synthesis of Jiangsu Province and Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- College of Chemistry, Chemical Engineering and Materials Science
- Dushu Lake Campus
- Soochow University
- Suzhou 215123
| | - Weikai Gu
- Key Laboratory of Organic Synthesis of Jiangsu Province and Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- College of Chemistry, Chemical Engineering and Materials Science
- Dushu Lake Campus
- Soochow University
- Suzhou 215123
| | - Yaorong Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province and Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- College of Chemistry, Chemical Engineering and Materials Science
- Dushu Lake Campus
- Soochow University
- Suzhou 215123
| | - Bei Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province and Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- College of Chemistry, Chemical Engineering and Materials Science
- Dushu Lake Campus
- Soochow University
- Suzhou 215123
| | - Yingming Yao
- Key Laboratory of Organic Synthesis of Jiangsu Province and Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- College of Chemistry, Chemical Engineering and Materials Science
- Dushu Lake Campus
- Soochow University
- Suzhou 215123
| | - Qi Shen
- Key Laboratory of Organic Synthesis of Jiangsu Province and Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- College of Chemistry, Chemical Engineering and Materials Science
- Dushu Lake Campus
- Soochow University
- Suzhou 215123
| |
Collapse
|
80
|
Zhao W, Liu B, Liu X, Wang X, Wang Y, Yao C, Wu C, Cui D. Neutral lutetium complex/polyamine mediated immortal ring-opening polymerization of rac-lactide: facile synthesis of well-defined hydroxyl-end and amide-core stereoregular star polylactide. Polym Chem 2015. [DOI: 10.1039/c5py01164g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile way to obtain well-defined hydroxyl-end and amide-core stereoregular star polylactide.
Collapse
Affiliation(s)
- Wei Zhao
- 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
| | - Xinli 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
| | - Xue Wang
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- People's Republic of China
| | - Yang Wang
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- People's Republic of China
| | - Changguang Yao
- 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
| | - 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
|
81
|
Jędrzkiewicz D, Czeluśniak I, Wierzejewska M, Szafert S, Ejfler J. Well-controlled, zinc-catalyzed synthesis of low molecular weight oligolactides by ring opening reaction. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcata.2014.10.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
82
|
Ghosh S, Gowda RR, Jagan R, Chakraborty D. Gallium and indium complexes containing the bis(imino)phenoxide ligand: synthesis, structural characterization and polymerization studies. Dalton Trans 2015; 44:10410-22. [DOI: 10.1039/c5dt00811e] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A series of gallium and indium complexes containing the bis(imino)phenolate ligand framework were synthesized and completely characterized with different spectroscopic techniques.
Collapse
Affiliation(s)
- Swarup Ghosh
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600 036
- India
| | - Ravikumar R. Gowda
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600 036
- India
| | - Rajamony Jagan
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600 036
- India
| | | |
Collapse
|
83
|
Schmid M, Oña-Burgos P, Guillaume SM, Roesky PW. (Iminophosphoranyl)(thiophosphoranyl)methane rare-earth borohydride complexes: synthesis, structures and polymerization catalysis. Dalton Trans 2015; 44:12338-48. [DOI: 10.1039/c4dt04034a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The {CH(PPh2NSiMe3)(PPh2S)}−ligand has been used for the synthesis of divalent and trivalent rare-earth borohydride complexes. These compounds enable the ring-opening polymerization (ROP) of ε-caprolactone (CL) and trimethylene carbonate (TMC).
Collapse
Affiliation(s)
- Matthias Schmid
- Institut für Anorganische Chemie
- Karlsruher Institut für Technologie (KIT)
- 76131 Karlsruhe
- Germany
- Institut des Sciences Chimiques de Rennes
| | - Pascual Oña-Burgos
- Institut für Anorganische Chemie
- Karlsruher Institut für Technologie (KIT)
- 76131 Karlsruhe
- Germany
- Department of Chemistry and Physics
| | - Sophie M. Guillaume
- Institut des Sciences Chimiques de Rennes
- CNRS - Université de Rennes 1 (UMR 6226)
- Organometallics
- Materials and Catalysis
- Campus de Beaulieu
| | - Peter W. Roesky
- Institut für Anorganische Chemie
- Karlsruher Institut für Technologie (KIT)
- 76131 Karlsruhe
- Germany
| |
Collapse
|
84
|
Saravanamoorthy S, Chandra Bose A, Velmathi S. Facile fabrication of polycaprolactone/h-MoO3 nanocomposites and their structural, optical and electrical properties. RSC Adv 2015. [DOI: 10.1039/c5ra17733b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hexagonal molybdenum oxide (h-MoO3) nanocrystals with a flower-like hierarchical structure were successfully incorporated into polycaprolactone (PCL) matrix by a simple solution casting technique.
Collapse
Affiliation(s)
- Somasundaram Saravanamoorthy
- Organic and Polymer Synthesis Laboratory
- Department of Chemistry
- National Institute of Technology
- Tiruchirappalli 620 015
- India
| | - Arumugam Chandra Bose
- Nanomaterials Laboratory
- Department of Physics
- National Institute of Technology
- Tiruchirappalli 620 015
- India
| | - Sivan Velmathi
- Organic and Polymer Synthesis Laboratory
- Department of Chemistry
- National Institute of Technology
- Tiruchirappalli 620 015
- India
| |
Collapse
|
85
|
Zhao J, Hadjichristidis N. Polymerization of 5-alkyl δ-lactones catalyzed by diphenyl phosphate and their sequential organocatalytic polymerization with monosubstituted epoxides. Polym Chem 2015. [DOI: 10.1039/c5py00019j] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
One-pot sequential organocatalytic polymerization reactions of 5-alkyl δ-lactones and monosubstituted epoxides were carried out using the base→acid “catalyst switch” strategy, leading to well-defined polyether–polyester block copolymers with various alkyl substituents.
Collapse
Affiliation(s)
- Junpeng Zhao
- Faculty of Materials Science and Engineering
- South China University of Technology
- Guangzhou
- People's Republic of China 510640
| | - Nikos Hadjichristidis
- Polymer Synthesis Laboratory
- KAUST Catalysis Center
- Physical Sciences and Engineering Division
- King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955
| |
Collapse
|
86
|
Alba A, du Boullay OT, Martin-Vaca B, Bourissou D. Direct ring-opening of lactide with amines: application to the organo-catalyzed preparation of amide end-capped PLA and to the removal of residual lactide from PLA samples. Polym Chem 2015. [DOI: 10.1039/c4py00973h] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Spontaneous ring-opening of lactide by primary and secondary amines has been applied to the preparation of well-defined amide end-capped PLA and to the removal of unreacted lactide from PLA samples.
Collapse
Affiliation(s)
- Aurélie Alba
- Université de Toulouse
- UPS
- LHFA
- F-31062 Toulouse
- France
| | | | | | | |
Collapse
|
87
|
Jędrzkiewicz D, Ejfler J, Gulia N, John Ł, Szafert S. Designing ancillary ligands for heteroleptic/homoleptic zinc complex formation: synthesis, structures and application in ROP of lactides. Dalton Trans 2015; 44:13700-15. [DOI: 10.1039/c5dt01553g] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis and characterization of a series of new amino-phenol/naphthol ligands (L1,2-H) have been developed and their respective zinc complexes (1 and 2-Zn) have been synthesized.
Collapse
Affiliation(s)
- D. Jędrzkiewicz
- Department of Chemistry
- University of Wrocław
- 50-383 Wrocław
- Poland
| | - J. Ejfler
- Department of Chemistry
- University of Wrocław
- 50-383 Wrocław
- Poland
| | - N. Gulia
- Department of Chemistry
- University of Wrocław
- 50-383 Wrocław
- Poland
| | - Ł. John
- Department of Chemistry
- University of Wrocław
- 50-383 Wrocław
- Poland
| | - S. Szafert
- Department of Chemistry
- University of Wrocław
- 50-383 Wrocław
- Poland
| |
Collapse
|
88
|
Manna CM, Kaplan HZ, Li B, Byers JA. High molecular weight poly(lactic acid) produced by an efficient iron catalyst bearing a bis(amidinato)- N -heterocyclic carbene ligand. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.07.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
89
|
Zhang Y, Sargent JL, Boudouris BW, Phillip WA. Nanoporous membranes generated from self-assembled block polymer precursors:Quo Vadis? J Appl Polym Sci 2014. [DOI: 10.1002/app.41683] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Yizhou Zhang
- Department of Chemical and Biomolecular Engineering; University of Notre Dame; Notre Dame Indiana 46556
| | - Jessica L. Sargent
- School of Chemical Engineering, Purdue University; West Lafayette Indiana 47907
| | - Bryan W. Boudouris
- School of Chemical Engineering, Purdue University; West Lafayette Indiana 47907
| | - William A. Phillip
- Department of Chemical and Biomolecular Engineering; University of Notre Dame; Notre Dame Indiana 46556
| |
Collapse
|
90
|
Zhang J, Xiong J, Sun Y, Tang N, Wu J. Highly Iso-Selective and Active Catalysts of Sodium and Potassium Monophenoxides Capped by a Crown Ether for the Ring-Opening Polymerization of rac-Lactide. Macromolecules 2014. [DOI: 10.1021/ma502000y] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jinjin Zhang
- State Key
Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, College
of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Jiao Xiong
- State Key
Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, College
of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Yangyang Sun
- State Key
Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, College
of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Ning Tang
- State Key
Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, College
of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Jincai Wu
- State Key
Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous
Metal Chemistry and Resources Utilization of Gansu Province, College
of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People’s Republic of China
| |
Collapse
|
91
|
Holmberg AL, Reno KH, Wool RP, Epps TH. Biobased building blocks for the rational design of renewable block polymers. SOFT MATTER 2014; 10:7405-7424. [PMID: 25131385 DOI: 10.1039/c4sm01220h] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Block polymers (BPs) derived from biomass (biobased) are necessary components of a sustainable future that relies minimally on petroleum-based plastics for applications ranging from thermoplastic elastomers and pressure-sensitive adhesives to blend compatibilizers. To facilitate their adoption, renewable BPs must be affordable, durable, processable, versatile, and reasonably benign. Their desirability further depends on the relative sustainability of the renewable resources and the methods employed in the monomer and polymer syntheses. Various strategies allow these BPs' characteristics to be tuned and enhanced for commercial applications, and many of these techniques also can be applied to manipulate the wide-ranging mechanical and thermal properties of biobased and self-assembling block polymers. From feedstock to application, this review article highlights promising renewable BPs, plus their material and assembly properties, in support of de novo design strategies that could revolutionize material sustainability.
Collapse
Affiliation(s)
- Angela L Holmberg
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, USA.
| | | | | | | |
Collapse
|
92
|
Schmid M, Guillaume SM, Roesky PW. β-Diketiminate Rare Earth Borohydride Complexes: Synthesis, Structure, and Catalytic Activity in the Ring-Opening Polymerization of ε-Caprolactone and Trimethylene Carbonate. Organometallics 2014. [DOI: 10.1021/om500708x] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Matthias Schmid
- Institut
für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse 15, 76131 Karlsruhe, Germany
- Institut
für Ressourcenökologie, Helmholtz-Zentrum Dresden-Rossendorf e. V., Bautzner Landstraße 400, 01328 Dresden, Germany
- Institut
des Sciences Chimiques de Rennes, CNRS - Université de Rennes 1 (UMR 6226), Organometallics:
Materials and Catalysis, Campus de
Beaulieu, 35042 Rennes Cedex, France
| | - Sophie M. Guillaume
- Institut
des Sciences Chimiques de Rennes, CNRS - Université de Rennes 1 (UMR 6226), Organometallics:
Materials and Catalysis, Campus de
Beaulieu, 35042 Rennes Cedex, France
| | - Peter W. Roesky
- Institut
für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse 15, 76131 Karlsruhe, Germany
| |
Collapse
|
93
|
Zhao J, Pahovnik D, Gnanou Y, Hadjichristidis N. One-pot synthesis of linear- and three-arm star-tetrablock quarterpolymers via sequential metal-free ring-opening polymerization using a “catalyst switch” strategy. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27332] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Junpeng Zhao
- Physical Sciences and Engineering Division; KAUST Catalysis Center, Polymer Synthesis Laboratory, King Abdullah University of Science and Technology (KAUST); Thuwal 23955 Saudi Arabia
| | - David Pahovnik
- Physical Sciences and Engineering Division; KAUST Catalysis Center, Polymer Synthesis Laboratory, King Abdullah University of Science and Technology (KAUST); Thuwal 23955 Saudi Arabia
| | - Yves Gnanou
- Physical Sciences and Engineering Division; King Abdullah University of Science and Technology (KAUST); Thuwal 23955 Saudi Arabia
| | - Nikos Hadjichristidis
- Physical Sciences and Engineering Division; KAUST Catalysis Center, Polymer Synthesis Laboratory, King Abdullah University of Science and Technology (KAUST); Thuwal 23955 Saudi Arabia
| |
Collapse
|
94
|
Zhao J, Pahovnik D, Gnanou Y, Hadjichristidis N. A “Catalyst Switch” Strategy for the Sequential Metal-Free Polymerization of Epoxides and Cyclic Esters/Carbonate. Macromolecules 2014. [DOI: 10.1021/ma500830v] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Junpeng Zhao
- Physical Sciences and Engineering Division and ‡Physical Sciences and Engineering
Division, KAUST Catalysis Center, Polymer Synthesis Laboratory, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - David Pahovnik
- Physical Sciences and Engineering Division and ‡Physical Sciences and Engineering
Division, KAUST Catalysis Center, Polymer Synthesis Laboratory, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Yves Gnanou
- Physical Sciences and Engineering Division and ‡Physical Sciences and Engineering
Division, KAUST Catalysis Center, Polymer Synthesis Laboratory, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Nikos Hadjichristidis
- Physical Sciences and Engineering Division and ‡Physical Sciences and Engineering
Division, KAUST Catalysis Center, Polymer Synthesis Laboratory, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| |
Collapse
|
95
|
Li QL, Gu WX, Gao H, Yang YW. Self-assembly and applications of poly(glycidyl methacrylate)s and their derivatives. Chem Commun (Camb) 2014; 50:13201-15. [DOI: 10.1039/c4cc03036b] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
96
|
Kryuchkov MA, Detrembleur C, Bazuin CG. Linear amphiphilic diblock copolymers of lactide and 2-dimethylaminoethyl methacrylate using bifunctional-initiator and one-pot approaches. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.04.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
|
97
|
Hedir GG, Bell CA, Ieong NS, Chapman E, Collins IR, O’Reilly RK, Dove AP. Functional Degradable Polymers by Xanthate-Mediated Polymerization. Macromolecules 2014. [DOI: 10.1021/ma500428e] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Guillaume G. Hedir
- Department
of Chemistry, University of Warwick, Gibbet Hill, Coventry, CV4 7AL, U.K
| | - Craig A. Bell
- Department
of Chemistry, University of Warwick, Gibbet Hill, Coventry, CV4 7AL, U.K
| | - Nga Sze Ieong
- Department
of Chemistry, University of Warwick, Gibbet Hill, Coventry, CV4 7AL, U.K
| | - Emma Chapman
- BP Exploration Operating Company, Ltd., Chertsey Road, Sunbury-on-Thames, TW16 7BP, U.K
| | - Ian R. Collins
- BP Exploration Operating Company, Ltd., Chertsey Road, Sunbury-on-Thames, TW16 7BP, U.K
| | - Rachel K. O’Reilly
- Department
of Chemistry, University of Warwick, Gibbet Hill, Coventry, CV4 7AL, U.K
| | - Andrew P. Dove
- Department
of Chemistry, University of Warwick, Gibbet Hill, Coventry, CV4 7AL, U.K
| |
Collapse
|
98
|
Honrado M, Otero A, Fernández-Baeza J, Sánchez-Barba LF, Garcés A, Lara-Sánchez A, Rodrı́guez AM. Stereoselective ROP of rac-Lactide Mediated by Enantiopure NNO-Scorpionate Zinc Initiators. Organometallics 2014. [DOI: 10.1021/om500207x] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Manuel Honrado
- Departamento de
Quı́mica Inorgánica,
Orgánica y Bioquı́mica, Universidad de Castilla-La Mancha, Campus Universitario, 13071 Ciudad Real, Spain
| | - Antonio Otero
- Departamento de
Quı́mica Inorgánica,
Orgánica y Bioquı́mica, Universidad de Castilla-La Mancha, Campus Universitario, 13071 Ciudad Real, Spain
| | - Juan Fernández-Baeza
- Departamento de
Quı́mica Inorgánica,
Orgánica y Bioquı́mica, Universidad de Castilla-La Mancha, Campus Universitario, 13071 Ciudad Real, Spain
| | - Luis F. Sánchez-Barba
- Departamento de Quı́mica Inorgánica
y Analı́tica, Universidad Rey Juan Carlos, Móstoles, 28933 Madrid, Spain
| | - Andrés Garcés
- Departamento de Quı́mica Inorgánica
y Analı́tica, Universidad Rey Juan Carlos, Móstoles, 28933 Madrid, Spain
| | - Agustı́n Lara-Sánchez
- Departamento de
Quı́mica Inorgánica,
Orgánica y Bioquı́mica, Universidad de Castilla-La Mancha, Campus Universitario, 13071 Ciudad Real, Spain
| | - Ana M. Rodrı́guez
- Departamento de
Quı́mica Inorgánica,
Orgánica y Bioquı́mica, Universidad de Castilla-La Mancha, Campus Universitario, 13071 Ciudad Real, Spain
| |
Collapse
|
99
|
Thomas C, Gladysz JA. Highly Active Families of Catalysts for the Ring-Opening Polymerization of Lactide: Metal Templated Organic Hydrogen Bond Donors Derived from 2-Guanidinobenzimidazole. ACS Catal 2014. [DOI: 10.1021/cs500134z] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Coralie Thomas
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, United States
| | - John A. Gladysz
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, United States
| |
Collapse
|
100
|
Fliedel C, Vila-Viçosa D, Calhorda MJ, Dagorne S, Avilés T. Dinuclear Zinc-N-Heterocyclic Carbene Complexes for Either the Controlled Ring-Opening Polymerization of Lactide or the Controlled Degradation of Polylactide Under Mild Conditions. ChemCatChem 2014. [DOI: 10.1002/cctc.201301015] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|