51
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Pérez R, Córdova M, López J, Hoskins J, Zhang B, Grayson S, Müller A. Nucleation, crystallization, self-nucleation and thermal fractionation of cyclic and linear poly(ε-caprolactone)s. REACT FUNCT POLYM 2014. [DOI: 10.1016/j.reactfunctpolym.2013.10.013] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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52
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Borsacchi S, Paderni K, Messori M, Toselli M, Pilati F, Geppi M. Insights into Shape-Memory Poly(ε-caprolactone) Materials by Solid-State NMR. Macromolecules 2014. [DOI: 10.1021/ma5005716] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Silvia Borsacchi
- Dipartimento
di Chimica e Chimica Industriale, Università di Pisa, via Risorgimento
35, 56126 Pisa, Italy
- INSTM, via G. Giusti
9, 50121 Firenze, Italy
| | - Katia Paderni
- Dipartimento
di Ingegneria “Enzo Ferrari”, Università di Modena e Reggio Emilia, via Vignolese 905/A, 41125 Modena, Italy
- INSTM, via G. Giusti
9, 50121 Firenze, Italy
| | - Massimo Messori
- Dipartimento
di Ingegneria “Enzo Ferrari”, Università di Modena e Reggio Emilia, via Vignolese 905/A, 41125 Modena, Italy
- INSTM, via G. Giusti
9, 50121 Firenze, Italy
| | - Maurizio Toselli
- Dipartimento
di Chimica Industriale “Toso Montanari”, Università di Bologna, viale Risorgimento 4, 40136 Bologna, Italy
- INSTM, via G. Giusti
9, 50121 Firenze, Italy
| | - Francesco Pilati
- Dipartimento
di Ingegneria “Enzo Ferrari”, Università di Modena e Reggio Emilia, via Vignolese 905/A, 41125 Modena, Italy
- INSTM, via G. Giusti
9, 50121 Firenze, Italy
| | - Marco Geppi
- Dipartimento
di Chimica e Chimica Industriale, Università di Pisa, via Risorgimento
35, 56126 Pisa, Italy
- INSTM, via G. Giusti
9, 50121 Firenze, Italy
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53
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Pérez RA, López JV, Hoskins JN, Zhang B, Grayson SM, Casas MT, Puiggalí J, Müller AJ. Nucleation and Antinucleation Effects of Functionalized Carbon Nanotubes on Cyclic and Linear Poly(ε-caprolactones). Macromolecules 2014. [DOI: 10.1021/ma5005869] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ricardo A. Pérez
- Grupo
de Polímeros USB, Departamento de Ciencia de los Materiales, Universidad Simón Bolívar, Apartado 89000, Caracas 1080-A, Venezuela
| | - Juan V. López
- Grupo
de Polímeros USB, Departamento de Ciencia de los Materiales, Universidad Simón Bolívar, Apartado 89000, Caracas 1080-A, Venezuela
| | - Jessica N. Hoskins
- Department
of Chemistry, Tulane University, 6400 Freret St., New Orleans, Louisiana 70118, United States
| | - Boyu Zhang
- Department
of Chemistry, Tulane University, 6400 Freret St., New Orleans, Louisiana 70118, United States
| | - Scott M. Grayson
- Department
of Chemistry, Tulane University, 6400 Freret St., New Orleans, Louisiana 70118, United States
| | - María Teresa Casas
- Departament
d́Enginyería Química, Universitat Politécnica de Catanluya, Av. Diagonal 647, Barcelona E-08028, Spain
| | - Jordi Puiggalí
- Departament
d́Enginyería Química, Universitat Politécnica de Catanluya, Av. Diagonal 647, Barcelona E-08028, Spain
| | - Alejandro J. Müller
- Grupo
de Polímeros USB, Departamento de Ciencia de los Materiales, Universidad Simón Bolívar, Apartado 89000, Caracas 1080-A, Venezuela
- Institute
for Polymer Materials (POLYMAT) and Polymer Science and Technology
Department, Faculty of Chemistry, University of the Basque Country (UPV-EHU), Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastián, Spain
- IKERBASQUE,
Basque
Foundation for Science, E-48011 Bilbao, Spain
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54
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Pangilinan K, Advincula R. Cyclic polymers and catenanes by atom transfer radical polymerization (ATRP). POLYM INT 2014. [DOI: 10.1002/pi.4717] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Katrina Pangilinan
- Department of Macromolecular Science and Engineering; Case Western Reserve University; Cleveland OH 44106 USA
| | - Rigoberto Advincula
- Department of Macromolecular Science and Engineering; Case Western Reserve University; Cleveland OH 44106 USA
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55
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Coulembier O, De Winter J, Josse T, Mespouille L, Gerbaux P, Dubois P. One-step synthesis of polylactide macrocycles from sparteine-initiated ROP. Polym Chem 2014. [DOI: 10.1039/c3py01380d] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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56
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Brown HA, Waymouth RM. Zwitterionic ring-opening polymerization for the synthesis of high molecular weight cyclic polymers. Acc Chem Res 2013; 46:2585-96. [PMID: 23789724 DOI: 10.1021/ar400072z] [Citation(s) in RCA: 189] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Cyclic polymers are an intriguing class of macromolecules. Because of the constraints of the cyclic topology and the absence of chain ends, the properties of these molecules differ from those of linear polymers in ways that remain poorly understood. Cyclic polymers present formidable synthetic challenges because the entropic penalty of coupling the chain ends grows exponentially with increasing molecular weight. In this Account, we describe recent progress in the application of zwitterionic ring-opening polymerization (ZROP) as a strategy for the synthesis of high molecular weight, cyclic polymers. Zwitterionic ring-opening polymerization involves the addition of neutral organic nucleophiles to strained heterocyclic monomers; under appropriate conditions, cyclization of the resultant macrozwitterions generates cyclic macromolecules. We discuss the mechanistic and kinetic features of these zwitterionic ring-opening reactions and the conditions that influence the efficiency of the initiation, propagation, and cyclization to generate high molecular weight cyclic polymers. N-Heterocyclic carbenes (NHC) are potent nucleophiles and relatively poor leaving groups, two features that are important for the generation of high molecular weight polymers. Investigations of the nature of the monomer and nucleophile have helped researchers understand the factors that govern the reactivity of these systems and their impact on the molecular weight and molecular weight distributions of the resulting cyclic polymers. We focus primarily on ZROP mediated by N-heterocyclic carbene nucleophiles but also discuss zwitterionic polymerizations with amidine, pyridine, and imidazole nucleophiles. The ZROP of N-carboxyanhydrides with N-hetereocyclic carbenes generates a family of functionalized cyclic polypeptoids. We can synthesize gradient lactone copolymers by exploiting differences in relative reactivity present in ZROP that differ from those of traditional metal-mediated polymerizations. These new synthetic methods have allowed us to investigate the influence of topology on the crystallization behavior, stereocomplexation, and solution properties of cyclic macromolecules.
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Affiliation(s)
- Hayley A. Brown
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Robert M. Waymouth
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
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57
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Schäler K, Achilles A, Bärenwald R, Hackel C, Saalwächter K. Dynamics in Crystallites of Poly(ε-caprolactone) As Investigated by Solid-State NMR. Macromolecules 2013. [DOI: 10.1021/ma401532v] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kerstin Schäler
- Institut für Physik-NMR, Martin-Luther-Universität Halle-Wittenberg, Betty-Heimann-Straße
7, D-06120 Halle/Saale, Germany
| | - Anja Achilles
- Institut für Physik-NMR, Martin-Luther-Universität Halle-Wittenberg, Betty-Heimann-Straße
7, D-06120 Halle/Saale, Germany
| | - Ruth Bärenwald
- Institut für Physik-NMR, Martin-Luther-Universität Halle-Wittenberg, Betty-Heimann-Straße
7, D-06120 Halle/Saale, Germany
| | - Christiane Hackel
- Institut für Physik-NMR, Martin-Luther-Universität Halle-Wittenberg, Betty-Heimann-Straße
7, D-06120 Halle/Saale, Germany
| | - Kay Saalwächter
- Institut für Physik-NMR, Martin-Luther-Universität Halle-Wittenberg, Betty-Heimann-Straße
7, D-06120 Halle/Saale, Germany
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58
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Su HH, Chen HL, Díaz A, Casas MT, Puiggalí J, Hoskins JN, Grayson SM, Pérez RA, Müller AJ. New insights on the crystallization and melting of cyclic PCL chains on the basis of a modified Thomson–Gibbs equation. POLYMER 2013. [DOI: 10.1016/j.polymer.2012.11.066] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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59
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Barqawi H, Ostas E, Liu B, Carpentier JF, Binder WH. Multidimensional Characterization of α,ω-Telechelic Poly(ε-caprolactone)s via Online Coupling of 2D Chromatographic Methods (LC/SEC) and ESI-TOF/MALDI-TOF-MS. Macromolecules 2012. [DOI: 10.1021/ma3016739] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Haitham Barqawi
- Faculty of Natural Sciences
II (Chemistry, Physics, Mathematics), Institute of Chemistry, Chair
of Macromolecular Chemistry, Martin-Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany
| | - Elena Ostas
- Faculty of Natural Sciences
II (Chemistry, Physics, Mathematics), Institute of Chemistry, Chair
of Macromolecular Chemistry, Martin-Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany
| | - Bo Liu
- Institut des Sciences Chimiques
de Rennes, Organometallics: Materials and Catalysis, UMR 6226 CNRS-Université de Rennes 1, F-35042,
Rennes Cedex, France
| | - Jean-François Carpentier
- Institut des Sciences Chimiques
de Rennes, Organometallics: Materials and Catalysis, UMR 6226 CNRS-Université de Rennes 1, F-35042,
Rennes Cedex, France
| | - Wolfgang H. Binder
- Faculty of Natural Sciences
II (Chemistry, Physics, Mathematics), Institute of Chemistry, Chair
of Macromolecular Chemistry, Martin-Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany
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60
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Takeshita H, Poovarodom M, Kiya T, Arai F, Takenaka K, Miya M, Shiomi T. Crystallization behavior and chain folding manner of cyclic, star and linear poly(tetrahydrofuran)s. POLYMER 2012. [DOI: 10.1016/j.polymer.2012.09.019] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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61
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Cai T, Yang WJ, Neoh KG, Kang ET. Preparation of jellyfish-shaped amphiphilic block-graft copolymers consisting of a poly(ε-caprolactone)-block-poly(pentafluorostyrene) ring and poly(ethylene glycol) lateral brushes. Polym Chem 2012. [DOI: 10.1039/c2py00609j] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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62
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Dalitz F, Cudaj M, Maiwald M, Guthausen G. Process and reaction monitoring by low-field NMR spectroscopy. PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 2012; 60:52-70. [PMID: 22293399 DOI: 10.1016/j.pnmrs.2011.11.003] [Citation(s) in RCA: 131] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Accepted: 11/29/2011] [Indexed: 05/31/2023]
Affiliation(s)
- Franz Dalitz
- Institute of Mechanical Process Engineering and Mechanics, SRG10-2, KIT, Adenauerring 20 b, 76131 Karlsruhe, Germany
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63
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Shin EJ, Jones AE, Waymouth RM. Stereocomplexation in Cyclic and Linear Polylactide Blends. Macromolecules 2011. [DOI: 10.1021/ma202184j] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Eun Ji Shin
- Department
of Chemistry, Stanford University, Stanford,
California 94305, United States
| | - Alexandra E. Jones
- Department
of Chemistry, Stanford University, Stanford,
California 94305, United States
| | - Robert M. Waymouth
- Department
of Chemistry, Stanford University, Stanford,
California 94305, United States
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64
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Yamamoto T, Tezuka Y. Topological polymer chemistry: a cyclic approach toward novel polymer properties and functions. Polym Chem 2011. [DOI: 10.1039/c1py00088h] [Citation(s) in RCA: 238] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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65
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KITAHARA T, YAMAZAKI S, KIMURA K. Effects of Topological Constraint and Knot Entanglement on the Crystal Growth of Polymers Proved by Growth Rate of Spherulite of Cyclic Polyethylene. KOBUNSHI RONBUNSHU 2011. [DOI: 10.1295/koron.68.694] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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66
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YAMAMOTO T, TEZUKA Y. Topological Polymer Chemistry: New Synthesis of Cyclic and Multicyclic Polymers and Topology Effects Thereby. KOBUNSHI RONBUNSHU 2011. [DOI: 10.1295/koron.68.782] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Takuya YAMAMOTO
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology
| | - Yasuyuki TEZUKA
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology
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