1
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Zhang X, Dai Y, Dai G, Deng C. Advances in PEG-based ABC terpolymers and their applications. RSC Adv 2020; 10:21602-21614. [PMID: 35518773 PMCID: PMC9054495 DOI: 10.1039/d0ra03478a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 05/18/2020] [Indexed: 12/16/2022] Open
Abstract
ABC terpolymers are a class of very important polymers because of their expansive molecular topologies and extensive architectures. As block A, poly(ethylene glycol) (PEG) is one of the most principal categories owing to good biocompatibility and wide commercial availability. More importantly, the synthetic approaches of ABC terpolymers using PEG as a macroinitiator are facile and varied. PEG-based ABC terpolymers from design and synthesis to applications are highlighted in this review. Linear, 3-miktoarm, and cyclic polymers as the architecture are separated. The synthetic approaches of PEG-based ABC terpolymers mainly include the sequential polymerization or coupling of polymers. PEG-based ABC terpolymers have wide applications in the fields of drug carriers, gene vectors, templates for the fabrication of inorganic hollow nanospheres, and stabilizers of metal nanoparticles.
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Affiliation(s)
- Xiaojin Zhang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences Wuhan 430074 China
| | - Yu Dai
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences Wuhan 430074 China
| | - Guofei Dai
- Jiangxi Provincial Key Laboratory of Water Resources and Environment of Poyang Lake, Jiangxi Institute of Water Sciences Nanchang 330029 China
| | - Chunhui Deng
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis, Advanced Materials Laboratory, Fudan University Shanghai 200433 China
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2
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Yamamoto T. Topology effects of cyclic polymers: Controlling the topology for innovative functionalities. REACT FUNCT POLYM 2018. [DOI: 10.1016/j.reactfunctpolym.2018.08.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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3
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Demarteau J, De Winter J, Detrembleur C, Debuigne A. Ethylene/vinyl acetate-based macrocycles via organometallic-mediated radical polymerization and CuAAC ‘click’ reaction. Polym Chem 2018. [DOI: 10.1039/c7py01891f] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Sequential organometallic-mediated radical polymerization and copper-catalyzed Huisgen dipolar cycloaddition ring-closure led to unique vinyl acetate and ethylene-containing macrocycles.
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Affiliation(s)
- Jérémy Demarteau
- Centre for Education and Research on Macromolecules (CERM)
- CESAM Research Unit
- Department of Chemistry
- University of Liege
- 4000 Liège
| | - Julien De Winter
- Organic Synthesis and Mass Spectrometry Laboratory
- University of Mons
- 7000 Mons
- Belgium
| | - Christophe Detrembleur
- Centre for Education and Research on Macromolecules (CERM)
- CESAM Research Unit
- Department of Chemistry
- University of Liege
- 4000 Liège
| | - Antoine Debuigne
- Centre for Education and Research on Macromolecules (CERM)
- CESAM Research Unit
- Department of Chemistry
- University of Liege
- 4000 Liège
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4
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Sinclair F, Alkattan M, Prunet J, Shaver MP. Olefin cross metathesis and ring-closing metathesis in polymer chemistry. Polym Chem 2017. [DOI: 10.1039/c7py00340d] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The use of olefin cross metathesis in preparing functional polymers, through either pre-functionalisation of monomers or post-polymerisation functionalisation is growing in both scope and breadth, as discussed in this review article.
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Affiliation(s)
- Fern Sinclair
- EastCHEM School of Chemistry
- Joseph Black Building
- University of Edinburgh
- Edinburgh EH9 3FJ
- UK
| | - Mohammed Alkattan
- EastCHEM School of Chemistry
- Joseph Black Building
- University of Edinburgh
- Edinburgh EH9 3FJ
- UK
| | - Joëlle Prunet
- WestCHEM
- School of Chemistry
- University of Glasgow
- Glasgow
- UK
| | - Michael P. Shaver
- EastCHEM School of Chemistry
- Joseph Black Building
- University of Edinburgh
- Edinburgh EH9 3FJ
- UK
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5
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Baba E, Yatsunami T, Tezuka Y, Yamamoto T. Formation and Properties of Vesicles from Cyclic Amphiphilic PS-PEO Block Copolymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:10344-10349. [PMID: 27623059 DOI: 10.1021/acs.langmuir.6b03148] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Linear polystyrene-poly(ethylene oxide)-polystyrene (PS-PEO-PS) block copolymers and corresponding cyclized PS-PEO counterparts with three different PS molecular weights were synthesized and self-assembled to investigate the effects arising from the topology. Linear PS5-PEO45-PS5 (L1) and cyclic PS10-PEO45 (C1) formed micelles. As previously reported for poly(n-butyl acrylate) and PEO block copolymers, the micelles from C1 showed more than 30 °C higher phase transition temperature (cloud point, Tc) than those from L1. Linear PS10-PEO45-PS10 (L2) and cyclic PS20-PEO45 (C2) resulted in the formation of a structure called large compound micelles. Self-assembly of linear PS40-PEO48-PS40 (L3) and cyclic PS86-PEO48 (C3) lead to the formation of vesicles. The vesicles were characterized by TEM, DLS, and SLS. Remarkably, the vesicles from L3 (Tc = 69, 59, and 48 °C in the presence of 1, 5, and 10 wt % of NaCl, respectively) were found to be somewhat more thermally stable than those from C3 (Tc = 62, 52, and 43 °C in the presence of 1, 5, and 10 wt % of NaCl, respectively). This trend of the thermal stability was counterintuitively opposed to the case of the micelles. Moreover, Tc of the vesicles was controlled by the ratio of L3 and C3.
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Affiliation(s)
- Eisuke Baba
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology , O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Toshiaki Yatsunami
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology , O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Yasuyuki Tezuka
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology , O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Takuya Yamamoto
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology , O-okayama, Meguro-ku, Tokyo 152-8552, Japan
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University , Sapporo, Hokkaido 060-8628, Japan
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6
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Zhao J, Zhou Y, Zhou Y, Zhou N, Pan X, Zhang Z, Zhu X. A straightforward approach for the one-pot synthesis of cyclic polymers from RAFT polymers via thiol–Michael addition. Polym Chem 2016. [DOI: 10.1039/c5py01861g] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A straightforward approach for the synthesis of cyclic polymers in a one-pot reaction.
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Affiliation(s)
- Junfei Zhao
- Suzhou key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Yanyan Zhou
- Suzhou key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Yu Zhou
- Suzhou key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Nianchen Zhou
- Suzhou key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Xiangqiang Pan
- Suzhou key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Zhengbiao Zhang
- Suzhou key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Xiulin Zhu
- Suzhou key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
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7
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He Q, Yol AM, Wang SF, Ma H, Guo K, Zhang F, Wesdemiotis C, Quirk RP, Foster MD. Efficient synthesis of well-defined cyclic polystyrenes using anionic polymerization, silicon chloride linking chemistry and metathesis ring closure. Polym Chem 2016. [DOI: 10.1039/c6py01149g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
An efficient method for the synthesis of well-defined cyclic polystyrenes using anionic polymerization, silicon chloride linking chemistry, and metathesis ring closure has been developed.
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Affiliation(s)
- Qiming He
- Department of Polymer Science
- The University of Akron
- Akron
- USA
| | - Aleer M. Yol
- Department of Chemistry
- The University of Akron
- Akron
- USA
| | - Shih-Fan Wang
- Department of Polymer Science
- The University of Akron
- Akron
- USA
| | - Hongwei Ma
- Department of Polymer Science
- The University of Akron
- Akron
- USA
- School of Chemical Engineering
| | - Kai Guo
- Department of Polymer Science
- The University of Akron
- Akron
- USA
- Department of Chemistry
| | - Fan Zhang
- Department of Polymer Science
- The University of Akron
- Akron
- USA
| | - Chrys Wesdemiotis
- Department of Polymer Science
- The University of Akron
- Akron
- USA
- Department of Chemistry
| | | | - Mark D. Foster
- Department of Polymer Science
- The University of Akron
- Akron
- USA
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8
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Yamamoto T, Tezuka Y. Cyclic polymers revealing topology effects upon self-assemblies, dynamics and responses. SOFT MATTER 2015; 11:7458-7468. [PMID: 26264187 DOI: 10.1039/c5sm01557j] [Citation(s) in RCA: 99] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A variety of single- and multicyclic polymers having programmed chemical structures with guaranteed purity have now become obtainable owing to a number of synthetic breakthroughs achieved in recent years. Accordingly, a broadening range of studies has been undertaken to gain updated insights on fundamental polymer properties of cyclic polymers in either solution or bulk, in either static or dynamic states, and in self-assemblies, leading to unusual properties and functions of polymer materials based on their cyclic topologies. In this article, we review recent studies aiming to achieve distinctive properties and functions by cyclic polymers unattainable by their linear or branched counterparts. We focus, in particular, on selected examples of unprecedented topology effects of cyclic polymers upon self-assemblies, dynamics and responses, to highlight current progress in Topological Polymer Chemistry.
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Affiliation(s)
- Takuya Yamamoto
- Department of Organic and Polymeric Materials, Graduate School of Science and Engineering, Tokyo Institute of Technology, Tokyo, 152-8552, Japan.
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9
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Zhu Y, Hosmane NS. Advanced Developments in Cyclic Polymers: Synthesis, Applications, and Perspectives. ChemistryOpen 2015; 4:408-17. [PMID: 26478835 PMCID: PMC4603400 DOI: 10.1002/open.201402172] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Indexed: 11/13/2022] Open
Abstract
Due to the topological effect, cyclic polymers demonstrate different and unique physical and biological properties in comparison with linear counterparts having the same molecular-weight range. With advanced synthetic and analytic technologies, cyclic polymers with different topologies, e.g. multicyclic polymers, have been reported and well characterized. For example, various cyclic DNA and related structures, such as cyclic duplexes, have been prepared conveniently by click chemistry. These types of DNA have increased resistance to enzymatic degradation and have high thermodynamic stability, and thus, have potential therapeutic applications. In addition, cyclic polymers have also been used to prepare organic-inorganic hybrids for applications in catalysis, e.g. catalyst supports. Due to developments in synthetic technology, highly pure cyclic polymers could now be produced in large scale. Therefore, we anticipate discovering more applications in the near future. Despite their promise, cyclic polymers are still less explored than linear polymers like polyolefins and polycarbonates, which are widely used in daily life. Some critical issues, including controlling the molecular weight and finding suitable applications, remain big challenges in the cyclic-polymer field. This review briefly summarizes the commonly used synthetic methodologies and focuses more on the attractive functional materials and their biological properties and potential applications.
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Affiliation(s)
- Yinghuai Zhu
- Institute of Chemical and Engineering Sciences1 Pesek Road, Jurong Island, Singapore, 627833, Singapore
| | - Narayan S Hosmane
- Department of Chemistry and Biochemistry, Northern Illinois UniversityDeKalb, IL, 60115-2862, USA
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10
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A study on emulsion stabilization induced with linear and cyclized polystyrene-poly(ethylene oxide) block copolymer surfactants. Polym J 2015. [DOI: 10.1038/pj.2015.5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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11
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Sun P, Tang Q, Wang Z, Zhao Y, Zhang K. Cyclic polymers based on UV-induced strain promoted azide–alkyne cycloaddition reaction. Polym Chem 2015. [DOI: 10.1039/c5py00416k] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A unique ring-closure method was developed for the preparation of cyclic polymers based on the combination of atom transfer radical polymerization and UV-induced strain promoted azide–alkyne cycloaddition reaction.
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Affiliation(s)
- Peng Sun
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- The Chinese Academy of Sciences
- Beijing 100190
- China
| | - Qingquan Tang
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- The Chinese Academy of Sciences
- Beijing 100190
- China
| | - Zhenpeng Wang
- National Center for Mass Spectrometry in Beijing
- Institute of Chemistry
- The Chinese Academy of Sciences
- Beijing 100190
- China
| | - Yuming Zhao
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- The Chinese Academy of Sciences
- Beijing 100190
- China
| | - Ke Zhang
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- The Chinese Academy of Sciences
- Beijing 100190
- China
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12
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Tang Q, Chen J, Zhao Y, Zhang K. A ring-closure method for preparing cyclic polymers from unconjugated vinyl monomers. Polym Chem 2015. [DOI: 10.1039/c5py01049g] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A unique ring-closure method was developed specifically focusing on the preparation of cyclic polymers derived from unconjugated vinyl monomers by combining RAFT/MADIX living polymerization technique and UV-induced SPAAC click reaction.
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Affiliation(s)
- Qingquan Tang
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- The Chinese Academy of Sciences
- Beijing 100190
- China
| | - Jiqiang Chen
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- The Chinese Academy of Sciences
- Beijing 100190
- China
| | - Yang Zhao
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- The Chinese Academy of Sciences
- Beijing 100190
- China
| | - Ke Zhang
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- The Chinese Academy of Sciences
- Beijing 100190
- China
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13
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Herndon JW. The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2012. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.02.026] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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14
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Tang Q, Wu Y, Sun P, Chen Y, Zhang K. Powerful Ring-Closure Method for Preparing Varied Cyclic Polymers. Macromolecules 2014. [DOI: 10.1021/ma500799w] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Qingquan Tang
- State Key Laboratory of Polymer
Physics and Chemistry, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
| | - Ying Wu
- State Key Laboratory of Polymer
Physics and Chemistry, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
| | - Peng Sun
- State Key Laboratory of Polymer
Physics and Chemistry, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
| | - Yongming Chen
- State Key Laboratory of Polymer
Physics and Chemistry, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
| | - Ke Zhang
- State Key Laboratory of Polymer
Physics and Chemistry, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
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15
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Heo K, Kim YY, Kitazawa Y, Kim M, Jin KS, Yamamoto T, Ree M. Structural Characteristics of Amphiphilic Cyclic and Linear Block Copolymer Micelles in Aqueous Solutions. ACS Macro Lett 2014; 3:233-239. [PMID: 35590513 DOI: 10.1021/mz5000224] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The structural characteristics of aqueous micelles composed of amphiphilic cyclic poly(n-butyl acrylate-b-ethylene oxide) (cyclic PBA-b-PEO) or a linear analogue (i.e., linear poly(n-butyl acrylate-b-ethylene oxide-b-n-butyl acrylate) (linear PBA-b-PEO-b-PBA)) were examined for the first time using synchrotron X-ray scattering techniques and quantitative data analysis. The scattering data were analyzed using a variety of methodologies in a comprehensive complementary manner. These analyses provided details of the structural information about the micelles. Both micelles were found to consist of a core and a fuzzy shell; however, the cyclic block copolymer had a strong tendency to form micelles with core and shell parts that were more compact and dense than the corresponding parts of the linear block copolymer micelles. The PBA block of the cyclic copolymer was found to form a hydrophobic core with a density that exceeded the density of the homopolymer in the bulk state. The structural differences originated primarily from the topological difference between the cyclic and linear block copolymers. The elimination of the chain end groups (which introduced entropy and increased the excess excluded volume) from the amphiphilic block copolymer yielded more stable dense micelles in solution.
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Affiliation(s)
- Kyuyoung Heo
- Department of Chemistry, Division of Advanced Materials Science, Center for Electro-Photo Behaviors in Advanced Molecular Systems, Pohang Accelerator Laboratory, Polymer Research Institute, and BK School of Molecular Science, Pohang University of Science & Technology, Pohang 790-784, Republic of Korea
| | - Young Yong Kim
- Department of Chemistry, Division of Advanced Materials Science, Center for Electro-Photo Behaviors in Advanced Molecular Systems, Pohang Accelerator Laboratory, Polymer Research Institute, and BK School of Molecular Science, Pohang University of Science & Technology, Pohang 790-784, Republic of Korea
| | - Yu Kitazawa
- Department
of Organic and Polymeric Materials, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Mihee Kim
- Department of Chemistry, Division of Advanced Materials Science, Center for Electro-Photo Behaviors in Advanced Molecular Systems, Pohang Accelerator Laboratory, Polymer Research Institute, and BK School of Molecular Science, Pohang University of Science & Technology, Pohang 790-784, Republic of Korea
| | - Kyeong Sik Jin
- Pohang Accelerator Laboratory, Pohang University of Science & Technology, Pohang 790-784, Republic of Korea
| | - Takuya Yamamoto
- Department
of Organic and Polymeric Materials, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Moonhor Ree
- Department of Chemistry, Division of Advanced Materials Science, Center for Electro-Photo Behaviors in Advanced Molecular Systems, Pohang Accelerator Laboratory, Polymer Research Institute, and BK School of Molecular Science, Pohang University of Science & Technology, Pohang 790-784, Republic of Korea
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16
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Wang S, Zhang K, Chen Y, Xi F. Isomeric Dicyclic Polymers via Atom Transfer Radical Polymerization and Atom Transfer Radical Coupling Cyclization. Macromolecules 2014. [DOI: 10.1021/ma402335f] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Shuangshuang Wang
- Laboratory of Polymer Physics and Chemistry,
Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
| | - Ke Zhang
- Laboratory of Polymer Physics and Chemistry,
Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
| | - Yongming Chen
- Laboratory of Polymer Physics and Chemistry,
Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
- Key Laboratory for
Polymeric Composite and Functional Materials of Ministry of Education,
School of Chemistry and Chemical Engineering, Sun Yat-Sen University, No. 135, Xingang Xi Road, Guangzhou 510275, China
| | - Fu Xi
- Laboratory of Polymer Physics and Chemistry,
Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
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17
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Zhang Y, Yin Q, Lu H, Xia H, Lin Y, Cheng J. PEG-Polypeptide Dual Brush Block Copolymers: Synthesis and Application in Nanoparticle Surface PEGylation. ACS Macro Lett 2013; 2:809-813. [PMID: 24159425 PMCID: PMC3804265 DOI: 10.1021/mz4003672] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Amphiphilic polypeptide-containing hybrid dual brush block copolymers with controlled molecular weights and narrow molecular weight distributions were synthesized in one pot via ring-opening metathesis polymerization of sequentially added norbornyl-PEG and N-(2-((trimethylsilyl)amino)ethyl)-5-norbornene-endo-2,3-dicarboximide (M1) followed by ring-opening polymerization of amino acid N-carboxyanhydrides. Polylactide nanoparticles coated with these am phiphilic dual brush block copolymers showed significantly improved stability in PBS solution compared to those coated with amphiphilic linear block copolymers such as PEG-polylactide and PEG-polypeptides.
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Affiliation(s)
- Yanfeng Zhang
- Department of Materials Science and Engineering, University of Illinois at Urbana—Champaign, Urbana, IL 61801, USA
| | - Qian Yin
- Department of Materials Science and Engineering, University of Illinois at Urbana—Champaign, Urbana, IL 61801, USA
| | - Hua Lu
- Department of Materials Science and Engineering, University of Illinois at Urbana—Champaign, Urbana, IL 61801, USA
| | - Hongwei Xia
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269,USA
| | - Yao Lin
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269,USA
| | - Jianjun Cheng
- Department of Materials Science and Engineering, University of Illinois at Urbana—Champaign, Urbana, IL 61801, USA
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18
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Click cyclization of linear triblock copolymers at block junctions under high concentration due to end-block shielding. CHINESE JOURNAL OF POLYMER SCIENCE 2013. [DOI: 10.1007/s10118-013-1296-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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19
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Stamenović MM, Espeel P, Baba E, Yamamoto T, Tezuka Y, Du Prez FE. Straightforward synthesis of functionalized cyclic polymers in high yield via RAFT and thiolactone–disulfide chemistry. Polym Chem 2013. [DOI: 10.1039/c2py20751f] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Honda S, Yamamoto T, Tezuka Y. Tuneable enhancement of the salt and thermal stability of polymeric micelles by cyclized amphiphiles. Nat Commun 2013; 4:1574. [PMID: 23481382 PMCID: PMC3615470 DOI: 10.1038/ncomms2585] [Citation(s) in RCA: 126] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Accepted: 02/08/2013] [Indexed: 02/08/2023] Open
Abstract
Cyclic molecules provide better stability for their aggregates. Typically in nature, the unique cyclic cell membrane lipids allow thermophilic archaea to inhabit extreme conditions. By mimicking the biological design, the robustness of self-assembled synthetic nanostructures is expected to be improved. Here we report topology effects by cyclized polymeric amphiphiles against their linear counterparts, demonstrating a drastic enhancement in the thermal, as well as salt stability of self-assembled micelles. Furthermore, through coassembly of the linear and cyclic amphiphiles, the stability was successfully tuned for a wide range of temperatures and salt concentrations. The enhanced thermal/salt stability was exploited in a halogen exchange reaction to stimulate the catalytic activity. The mechanism for the enhancement was also investigated. These topology effects by the cyclic amphiphiles offer unprecedented opportunities in polymer materials design unattainable by traditional means.
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Affiliation(s)
- Satoshi Honda
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Takuya Yamamoto
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Yasuyuki Tezuka
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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21
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Yamamoto T. Synthesis of cyclic polymers and topology effects on their diffusion and thermal properties. Polym J 2012. [DOI: 10.1038/pj.2012.213] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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22
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Sugai N, Yamamoto T, Tezuka Y. Synthesis of Orientationally Isomeric Cyclic Stereoblock Polylactides with Head-to-Head and Head-to-Tail Linkages of the Enantiomeric Segments. ACS Macro Lett 2012; 1:902-906. [PMID: 35607141 DOI: 10.1021/mz300086v] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A pair of orientationally isomeric cyclic stereoblock polylactides (PLAs) possessing head-to-head (HH) and head-to-tail (HT) linkages between the poly(l-lactide) (PLLA) and poly(d-lactide) (PDLA) segments was synthesized through click chemistry and ring-closing metathesis (RCM) of three asymmetrically functionalized telechelic precursors. Thus, α-ethenyl-ω-azido-PLLA (2a) was reacted with α-ethenyl-ω-ethynyl-PDLA (2b) and α-ethynyl-ω-ethenyl-PDLA (2c) via click chemistry to form ethenyl telechelic stereoblock PLAs with HH and HT orientations (3a and 3b), respectively. The subsequent RCM produced cyclic stereoblock PLAs with the corresponding linking manners (4a and 4b). The effect of the topology on the melting temperature of the series of isomeric linear and cyclic PLAs having the contrastive linking orientations was systematically investigated.
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Affiliation(s)
- Naoto Sugai
- Department
of Organic and Polymeric Materials, Tokyo Institute of Technology, O-okayama,
Meguro-ku, Tokyo 152-8552, Japan
| | - Takuya Yamamoto
- Department
of Organic and Polymeric Materials, Tokyo Institute of Technology, O-okayama,
Meguro-ku, Tokyo 152-8552, Japan
| | - Yasuyuki Tezuka
- Department
of Organic and Polymeric Materials, Tokyo Institute of Technology, O-okayama,
Meguro-ku, Tokyo 152-8552, Japan
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