51
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Organocatalytic copolymerization of mixed type monomers. CHINESE JOURNAL OF POLYMER SCIENCE 2017. [DOI: 10.1007/s10118-017-1925-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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52
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Hassouna L, Illy N, Guégan P. Phosphazene/triisobutylaluminum-promoted anionic ring-opening polymerization of 1,2-epoxybutane initiated by secondary carbamates. Polym Chem 2017. [DOI: 10.1039/c7py00675f] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The deprotonation of secondary carbamates by tBuP2 in the presence of a Lewis acid allowed initiating the polymerization of 1,2-epoxybutane.
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Affiliation(s)
- L. Hassouna
- Sorbonne Universités
- UPMC Univ Paris 6
- CNRS
- Institut Parisien de Chimie Moléculaire
- Equipe Chimie des Polymères
| | - N. Illy
- Sorbonne Universités
- UPMC Univ Paris 6
- CNRS
- Institut Parisien de Chimie Moléculaire
- Equipe Chimie des Polymères
| | - P. Guégan
- Sorbonne Universités
- UPMC Univ Paris 6
- CNRS
- Institut Parisien de Chimie Moléculaire
- Equipe Chimie des Polymères
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53
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Li H, Zhao N, Ren C, Liu S, Li Z. Synthesis of linear and star poly(ε-caprolactone) with controlled and high molecular weights via cyclic trimeric phosphazene base catalyzed ring-opening polymerization. Polym Chem 2017. [DOI: 10.1039/c7py01673e] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Linear and star PCLs with controlled and high molecular weights are efficiently prepared by a catalytic system of CTPB/alcohol.
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Affiliation(s)
- Huaike Li
- Key Laboratory of Biobased Polymer Materials
- Shandong Provincial Education Department; School of Polymer Science and Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Na Zhao
- Key Laboratory of Biobased Polymer Materials
- Shandong Provincial Education Department; School of Polymer Science and Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Chuanli Ren
- Key Laboratory of Biobased Polymer Materials
- Shandong Provincial Education Department; School of Polymer Science and Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Shaofeng Liu
- Key Laboratory of Biobased Polymer Materials
- Shandong Provincial Education Department; School of Polymer Science and Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Zhibo Li
- Key Laboratory of Biobased Polymer Materials
- Shandong Provincial Education Department; School of Polymer Science and Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
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54
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Ma Q, Lei K, Ding J, Yu L, Ding J. Design, synthesis and ring-opening polymerization of a new iodinated carbonate monomer: a universal route towards ultrahigh radiopaque aliphatic polycarbonates. Polym Chem 2017. [DOI: 10.1039/c7py01411b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A universal route towards ultrahigh radiopaque aliphatic polycarbonates was developed based on a new iodinated carbonate monomer.
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Affiliation(s)
- Qian Ma
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Kewen Lei
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Jian Ding
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Lin Yu
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
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55
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Aydogan C, Kutahya C, Allushi A, Yilmaz G, Yagci Y. Block copolymer synthesis in one shot: concurrent metal-free ATRP and ROP processes under sunlight. Polym Chem 2017. [DOI: 10.1039/c7py00069c] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A completely metal-free strategy was developed by combining Atom Transfer Radical Polymerization (ATRP) and Ring Opening Polymerization (ROP) for the syntheses of block copolymers.
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Affiliation(s)
- Cansu Aydogan
- Department of Chemistry
- Istanbul Technical University
- Istanbul
- Turkey
| | - Ceren Kutahya
- Department of Chemistry
- Istanbul Technical University
- Istanbul
- Turkey
| | - Andrit Allushi
- Department of Chemistry
- Istanbul Technical University
- Istanbul
- Turkey
| | - Gorkem Yilmaz
- Department of Chemistry
- Istanbul Technical University
- Istanbul
- Turkey
| | - Yusuf Yagci
- Department of Chemistry
- Istanbul Technical University
- Istanbul
- Turkey
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56
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Ladelta V, Bilalis P, Gnanou Y, Hadjichristidis N. Ring-opening polymerization of ω-pentadecalactone catalyzed by phosphazene superbases. Polym Chem 2017. [DOI: 10.1039/c6py01983h] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A fast and living ring-opening polymerization (ROP) of ω-pentadecalactone (PDL), a representative monomer of macrolactones, was achieved using a primary alcohol as the initiator and t-BuP4 or t-octP4 as the catalyst.
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Affiliation(s)
- Viko Ladelta
- Division of Physical Sciences & Engineering
- KAUST Catalysis Center
- Polymer Synthesis Laboratory
- King Abdullah University of Science and Technology (KAUST)
- Thuwal
| | - Panayiotis Bilalis
- Division of Physical Sciences & Engineering
- KAUST Catalysis Center
- Polymer Synthesis Laboratory
- King Abdullah University of Science and Technology (KAUST)
- Thuwal
| | - Yves Gnanou
- Division of Physical Sciences & Engineering
- King Abdullah University of Science and Technology (KAUST)
- Thuwal
- Kingdom of Saudi Arabia
| | - Nikos Hadjichristidis
- Division of Physical Sciences & Engineering
- KAUST Catalysis Center
- Polymer Synthesis Laboratory
- King Abdullah University of Science and Technology (KAUST)
- Thuwal
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57
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Ciftci M, Yilmaz G, Yagci Y. Photoinitiated Metal Free Living Radical and Cationic Polymerizations. J PHOTOPOLYM SCI TEC 2017. [DOI: 10.2494/photopolymer.30.385] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Gorkem Yilmaz
- Istanbul Technical University, Department of Chemistry
| | - Yusuf Yagci
- Istanbul Technical University, Department of Chemistry
- Center of Excellence for Advanced Materials Research (CEAMR) and Department of Chemistry, Faculty of Science, King Abdulaziz University
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58
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Neitzel AE, Haversang TJ, Hillmyer MA. Organocatalytic Cationic Ring-Opening Polymerization of a Cyclic Hemiacetal Ester. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.6b03114] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Angelika E. Neitzel
- Department
of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Thomas J. Haversang
- Department
of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Marc A. Hillmyer
- Department
of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
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59
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Xia Y, Chen Y, Song Q, Hu S, Zhao J, Zhang G. Base-to-Base Organocatalytic Approach for One-Pot Construction of Poly(ethylene oxide)-Based Macromolecular Structures. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01542] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Yening Xia
- Faculty of Materials Science
and Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Ye Chen
- Faculty of Materials Science
and Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Qilei Song
- Faculty of Materials Science
and Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Shuangyan Hu
- Faculty of Materials Science
and Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Junpeng Zhao
- Faculty of Materials Science
and Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Guangzhao Zhang
- Faculty of Materials Science
and Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
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60
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Hu S, Dai G, Zhao J, Zhang G. Ring-Opening Alternating Copolymerization of Epoxides and Dihydrocoumarin Catalyzed by a Phosphazene Superbase. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00840] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Shuangyan Hu
- Faculty of Materials Science
and Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Guoxiong Dai
- Faculty of Materials Science
and Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Junpeng Zhao
- Faculty of Materials Science
and Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Guangzhao Zhang
- Faculty of Materials Science
and Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
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61
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Ottou WN, Sardon H, Mecerreyes D, Vignolle J, Taton D. Update and challenges in organo-mediated polymerization reactions. Prog Polym Sci 2016. [DOI: 10.1016/j.progpolymsci.2015.12.001] [Citation(s) in RCA: 196] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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62
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Ajiro H, Haramiishi Y, Chanthaset N, Akashi M. Polymer design using trimethylene carbonate with ethylene glycol units for biomedical applications. Polym J 2016. [DOI: 10.1038/pj.2016.35] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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63
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Romain C, Zhu Y, Dingwall P, Paul S, Rzepa HS, Buchard A, Williams CK. Chemoselective Polymerizations from Mixtures of Epoxide, Lactone, Anhydride, and Carbon Dioxide. J Am Chem Soc 2016; 138:4120-31. [PMID: 27003333 DOI: 10.1021/jacs.5b13070] [Citation(s) in RCA: 163] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Controlling polymer composition starting from mixtures of monomers is an important, but rarely achieved, target. Here a single switchable catalyst for both ring-opening polymerization (ROP) of lactones and ring-opening copolymerization (ROCOP) of epoxides, anhydrides, and CO2 is investigated, using both experimental and theoretical methods. Different combinations of four model monomers-ε-caprolactone, cyclohexene oxide, phthalic anhydride, and carbon dioxide-are investigated using a single dizinc catalyst. The catalyst switches between the distinct polymerization cycles and shows high monomer selectivity, resulting in block sequence control and predictable compositions (esters and carbonates) in the polymer chain. The understanding gained of the orthogonal reactivity of monomers, specifically controlled by the nature of the metal-chain end group, opens the way to engineer polymer block sequences.
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Affiliation(s)
- Charles Romain
- Department of Chemistry, Imperial College London , London SW7 2AZ, U.K
| | - Yunqing Zhu
- Department of Chemistry, Imperial College London , London SW7 2AZ, U.K
| | - Paul Dingwall
- Department of Chemistry, Imperial College London , London SW7 2AZ, U.K
| | - Shyeni Paul
- Department of Chemistry, Imperial College London , London SW7 2AZ, U.K
| | - Henry S Rzepa
- Department of Chemistry, Imperial College London , London SW7 2AZ, U.K
| | - Antoine Buchard
- Department of Chemistry, University of Bath , Bath BA2 7AY, U.K
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64
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Hu S, Zhao J, Zhang G. Noncopolymerization Approach to Copolymers via Concurrent Transesterification and Ring-Opening Reactions. ACS Macro Lett 2016; 5:40-44. [PMID: 35668601 DOI: 10.1021/acsmacrolett.5b00839] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Inter- and intrachain transesterification, normally regarded as a detrimental side reaction for the synthesis of polyesters, is utilized herein to formulate a novel strategy for the modification of polyesters. Addition of an organic superbase into the mixture of hydroxyl-terminated poly(ε-caprolactone) and an epoxide, for example, propylene oxide or 1,2-butylene oxide, triggers concurrent nucleophilic ring-opening of the epoxide and transesterification reaction. The synergetic effect enables convenient and efficient transformation of the polyester into poly(ester-ether) random copolymers and thus advances the preparation of functional degradable polymeric materials taking advantage of the variety of commercial and laboratory-made polyesters and epoxides.
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Affiliation(s)
- Shuangyan Hu
- Faculty of Materials Science
and Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Junpeng Zhao
- Faculty of Materials Science
and Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Guangzhao Zhang
- Faculty of Materials Science
and Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
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65
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Satoh Y, Miyachi K, Matsuno H, Isono T, Tajima K, Kakuchi T, Satoh T. Synthesis of Well-Defined Amphiphilic Star-Block and Miktoarm Star Copolyethers via t-Bu-P4-Catalyzed Ring-Opening Polymerization of Glycidyl Ethers. Macromolecules 2016. [DOI: 10.1021/acs.macromol.5b02459] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Yusuke Satoh
- Graduate School of Chemical Sciences and Engineering and ‡Division of Applied
Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Kana Miyachi
- Graduate School of Chemical Sciences and Engineering and ‡Division of Applied
Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Hirohiko Matsuno
- Graduate School of Chemical Sciences and Engineering and ‡Division of Applied
Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Takuya Isono
- Graduate School of Chemical Sciences and Engineering and ‡Division of Applied
Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Kenji Tajima
- Graduate School of Chemical Sciences and Engineering and ‡Division of Applied
Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Toyoji Kakuchi
- Graduate School of Chemical Sciences and Engineering and ‡Division of Applied
Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Toshifumi Satoh
- Graduate School of Chemical Sciences and Engineering and ‡Division of Applied
Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
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66
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Alamri H, Hadjichristidis N. One-pot synthesis of well-defined polyether/polyester block copolymers and terpolymers by a highly efficient catalyst switch approach. Polym Chem 2016. [DOI: 10.1039/c6py00314a] [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]
Abstract
A novel catalyst switch methodology, which takes advantage of one of the best catalysts for epoxide (t-BuP4) and cyclic ester (t-BuP2) polymerization, is presented.
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Affiliation(s)
- Haleema Alamri
- King Abdullah University of Science and Technology (KAUST)
- Division of Physical Sciences & Engineering
- KAUST Catalysis Center
- Polymer Synthesis Laboratory
- Thuwal
| | - Nikos Hadjichristidis
- King Abdullah University of Science and Technology (KAUST)
- Division of Physical Sciences & Engineering
- KAUST Catalysis Center
- Polymer Synthesis Laboratory
- Thuwal
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67
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Herzberger J, Niederer K, Pohlit H, Seiwert J, Worm M, Wurm FR, Frey H. Polymerization of Ethylene Oxide, Propylene Oxide, and Other Alkylene Oxides: Synthesis, Novel Polymer Architectures, and Bioconjugation. Chem Rev 2015; 116:2170-243. [PMID: 26713458 DOI: 10.1021/acs.chemrev.5b00441] [Citation(s) in RCA: 451] [Impact Index Per Article: 50.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The review summarizes current trends and developments in the polymerization of alkylene oxides in the last two decades since 1995, with a particular focus on the most important epoxide monomers ethylene oxide (EO), propylene oxide (PO), and butylene oxide (BO). Classical synthetic pathways, i.e., anionic polymerization, coordination polymerization, and cationic polymerization of epoxides (oxiranes), are briefly reviewed. The main focus of the review lies on more recent and in some cases metal-free methods for epoxide polymerization, i.e., the activated monomer strategy, the use of organocatalysts, such as N-heterocyclic carbenes (NHCs) and N-heterocyclic olefins (NHOs) as well as phosphazene bases. In addition, the commercially relevant double-metal cyanide (DMC) catalyst systems are discussed. Besides the synthetic progress, new types of multifunctional linear PEG (mf-PEG) and PPO structures accessible by copolymerization of EO or PO with functional epoxide comonomers are presented as well as complex branched, hyperbranched, and dendrimer like polyethers. Amphiphilic block copolymers based on PEO and PPO (Poloxamers and Pluronics) and advances in the area of PEGylation as the most important bioconjugation strategy are also summarized. With the ever growing toolbox for epoxide polymerization, a "polyether universe" may be envisaged that in its structural diversity parallels the immense variety of structural options available for polymers based on vinyl monomers with a purely carbon-based backbone.
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Affiliation(s)
- Jana Herzberger
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Duesbergweg 10-14, D-55128 Mainz, Germany.,Graduate School Materials Science in Mainz , Staudingerweg 9, D-55128 Mainz, Germany
| | - Kerstin Niederer
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Duesbergweg 10-14, D-55128 Mainz, Germany
| | - Hannah Pohlit
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Duesbergweg 10-14, D-55128 Mainz, Germany.,Graduate School Materials Science in Mainz , Staudingerweg 9, D-55128 Mainz, Germany.,Max Planck Graduate Center , Staudingerweg 6, D-55128 Mainz, Germany.,Department of Dermatology, University Medical Center , Langenbeckstraße 1, D-55131 Mainz, Germany
| | - Jan Seiwert
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Duesbergweg 10-14, D-55128 Mainz, Germany
| | - Matthias Worm
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Duesbergweg 10-14, D-55128 Mainz, Germany.,Max Planck Graduate Center , Staudingerweg 6, D-55128 Mainz, Germany
| | - Frederik R Wurm
- Max Planck Graduate Center , Staudingerweg 6, D-55128 Mainz, Germany.,Max Planck Institute for Polymer Research , Ackermannweg 10, D-55128 Mainz, Germany
| | - Holger Frey
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Duesbergweg 10-14, D-55128 Mainz, Germany.,Graduate School Materials Science in Mainz , Staudingerweg 9, D-55128 Mainz, Germany
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68
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Seiwert J, Leibig D, Kemmer-Jonas U, Bauer M, Perevyazko I, Preis J, Frey H. Hyperbranched Polyols via Copolymerization of 1,2-Butylene Oxide and Glycidol: Comparison of Batch Synthesis and Slow Monomer Addition. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b02402] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Jan Seiwert
- Institute
of Organic Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Daniel Leibig
- Institute
of Organic Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128 Mainz, Germany
- Graduate
School
Materials Science in Mainz, Staudinger
Weg 9, 55128 Mainz, Germany
| | - Ulrike Kemmer-Jonas
- Institute
of Organic Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Marius Bauer
- Institute
of Organic Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Igor Perevyazko
- Department
of Molecular Biophysics and Polymer Physics, St. Petersburg State University, Universitetskaya nab. 7/9, 199034, Saint Petersburg, Russia
| | - Jasmin Preis
- PSS Polymer Standards
Service GmbH, In der Dalheimer Wiese
5, 55120 Mainz, Germany
| | - Holger Frey
- Institute
of Organic Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128 Mainz, Germany
- Graduate
School
Materials Science in Mainz, Staudinger
Weg 9, 55128 Mainz, Germany
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69
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Dentzer L, Bray C, Noinville S, Illy N, Guégan P. Phosphazene-Promoted Metal-Free Ring-Opening Polymerization of 1,2-Epoxybutane Initiated by Secondary Amides. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01638] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Laetitia Dentzer
- Sorbonne
Universités, UPMC Univ Paris 06, CNRS, UMR 8232, Institut Parisien de Chimie Moléculaire (IPCM), Equipe Chimie des Polymères, 4 place Jussieu, F-75005, Paris, France
| | - Caroline Bray
- Sorbonne
Universités, UPMC Univ Paris 06, CNRS, UMR 8232, Institut Parisien de Chimie Moléculaire (IPCM), Equipe Chimie des Polymères, 4 place Jussieu, F-75005, Paris, France
| | - Sylvie Noinville
- Sorbonne
Universités, UPMC Univ Paris 06, CNRS, UMR 8233, MONARIS, Université Pierre et Marie Curie, 4 place Jussieu, F-75005, Paris, France
| | - Nicolas Illy
- Sorbonne
Universités, UPMC Univ Paris 06, CNRS, UMR 8232, Institut Parisien de Chimie Moléculaire (IPCM), Equipe Chimie des Polymères, 4 place Jussieu, F-75005, Paris, France
| | - Philippe Guégan
- Sorbonne
Universités, UPMC Univ Paris 06, CNRS, UMR 8232, Institut Parisien de Chimie Moléculaire (IPCM), Equipe Chimie des Polymères, 4 place Jussieu, F-75005, Paris, France
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70
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Olsén P, Odelius K, Keul H, Albertsson AC. Macromolecular Design via an Organocatalytic, Monomer-Specific and Temperature-Dependent "On/Off Switch". High Precision Synthesis of Polyester/Polycarbonate Multiblock Copolymers. Macromolecules 2015; 48:1703-1710. [PMID: 26294800 PMCID: PMC4535708 DOI: 10.1021/acs.macromol.5b00254] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Revised: 02/27/2015] [Indexed: 12/23/2022]
Abstract
The employment of a monomer-specific "on/off switch" was used to synthesize a nine-block copolymer with a predetermined molecular weight and narrow distribution (Đ = 1.26) in only 2.5 h. The monomers consisted of a six-membered cyclic carbonate (i.e., 2-allyloxymethyl-2-ethyl-trimethylene carbonate (AOMEC)) and ε-caprolactone (εCL), which were catalyzed by 1,5,7-triazabicyclo[4.4.0]-dec-5-ene (TBD). The dependence of polymerization rate with temperature was different for the two monomers. Under similar reaction conditions, the ratio of the apparent rate constant of AOMEC and εCL [kpapp(AOMEC)/kpapp(εCL)] changes from 400 at T = -40 °C to 50 at T = 30 °C and 10 at T = 100 °C. Therefore, by decreasing the copolymerization temperature from 30 °C to -40 °C, the conversion of εCL can be switched "off", and by increasing the temperature to 30 °C, the conversion of εCL can be switched "on" again. The addition of AOMEC at T = -40 °C results in the formation of a pure carbonate block. The cyclic addition of AOMEC to a solution of εCL along with a simultaneous temperature change leads to the formation of multiblock copolymers. This result provides a new straightforward synthetic route to degradable multiblock copolymers, yielding new interesting materials with endless structural possibilities.
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Affiliation(s)
- Peter Olsén
- Department
of Fibre and Polymer Technology, KTH Royal
Institute of Technology, SE-100 44, Stockholm, Sweden
| | - Karin Odelius
- Department
of Fibre and Polymer Technology, KTH Royal
Institute of Technology, SE-100 44, Stockholm, Sweden
| | - Helmut Keul
- DWI
− Leibniz Institute for Interactive Materials and Institute
of Technical and Macromolecular Chemistry, RWTH Aachen University, Forckenbeckstraße 50, D-52056 Aachen, Germany
| | - Ann-Christine Albertsson
- Department
of Fibre and Polymer Technology, KTH Royal
Institute of Technology, SE-100 44, Stockholm, Sweden
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71
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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.
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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
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72
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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
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