1
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Zhang HL, Xu W, Liu C, Hong CY. Synthesis of a bead-like multicyclic polymer by UV-induced coupling of an anthracene-telechelic monocyclic precursor and its reversible topological conversion. Polym Chem 2021. [DOI: 10.1039/d1py00341k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In this study, a bead-like multicyclic polymer was synthesized by the UV-induced coupling reaction of an anthracene-telechelic monocyclic precursor and the reversible topological transformation between the monocyclic polymer and the multicyclic polymer was realized.
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Affiliation(s)
- Hua-long Zhang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Wen Xu
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Chao Liu
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Chun-yan Hong
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
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2
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Takahashi A, Tsunoda S, Yuzaki R, Kameyama A. Thioacyl-Transfer Ring-Expansion Polymerization of Thiiranes Based on a Cyclic Dithiocarbamate Initiator. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00711] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Akira Takahashi
- Department of Chemistry, Faculty of Engineering, Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa-ku, Yokohama-shi, Kanagawa 221-8686, Japan
| | - Shosuke Tsunoda
- Department of Chemistry, Faculty of Engineering, Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa-ku, Yokohama-shi, Kanagawa 221-8686, Japan
| | - Ryu Yuzaki
- Department of Chemistry, Faculty of Engineering, Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa-ku, Yokohama-shi, Kanagawa 221-8686, Japan
| | - Atsushi Kameyama
- Department of Chemistry, Faculty of Engineering, Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa-ku, Yokohama-shi, Kanagawa 221-8686, Japan
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3
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Kang G, Liu Y, Li L, Sun L, Ma W, Meng C, Ma L, Zheng G, Chang C, Wei H. Modulation of cyclic topology toward enhanced drug delivery, from linear and tadpole-like to dumbbell-shaped copolymers. Chem Commun (Camb) 2020; 56:3003-3006. [PMID: 32044897 DOI: 10.1039/c9cc09878j] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In this study, an efficient strategy for the synthesis of dumbbell-shaped amphiphilic copolymers with cyclic moieties as the two bells was developed and the enhanced performance of dumbbell-shaped copolymers for controlled drug release because of the simultaneous introduction of two macrocycles was disclosed.
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Affiliation(s)
- Guiying Kang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, China.
| | - Yuping Liu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, China.
| | - Lingxia Li
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Animal Virology of the Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730000, China
| | - Lu Sun
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, China.
| | - Wei Ma
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, China.
| | - Chao Meng
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, China.
| | - Liwei Ma
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, China.
| | - Guohua Zheng
- Department of Pharmaceutics, School of Pharmacy, Hubei University of Chinese Medicine, Wuhan, Hubei 430065, China.
| | - Cong Chang
- Department of Pharmaceutics, School of Pharmacy, Hubei University of Chinese Medicine, Wuhan, Hubei 430065, China.
| | - Hua Wei
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, China.
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4
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Tezuka Y. Topological Polymer Chemistry Designing Complex Macromolecular Graph Constructions. Acc Chem Res 2017; 50:2661-2672. [PMID: 28829114 DOI: 10.1021/acs.accounts.7b00338] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The precision design of topologically intriguing macromolecular architectures has continuously been an attractive challenge in polymer science and polymer materials engineering. A class of multicyclic polymer topologies, including three subclasses of spiro, bridged, and fused forms, are particularly unique not only from a topological geometry viewpoint but also from their biochemical relevance to programmed folding structures. In this Account, we describe recent progress in constructing this class of macromolecules, in particular by means of an electrostatic self-assembly and covalent fixation (ESA-CF) protocol, in which ion-paired polymer self-assemblies are employed as key intermediates. All three dicyclic constructions having either 8 (spiro), manacle (bridged), or θ (fused) forms, as well as a tricyclic trefoil (spiro) graph, have been constructed by the ESA-CF process. Moreover, a triply fused-tetracyclic macromolecular K3,3 graph has been constructed using a uniform-size dendritic polymer precursor having six cyclic ammonium salt end groups carrying two units of a trifunctional carboxylate counteranion. Remarkably, the K3,3 graph is known in topological geometry as a prototypical nonplanar graph and has been identified as topologically equivalent to some multicyclic polypeptides (cyclotides) produced through the intramolecular S-S bridging with cysteine residues. A series of single cyclic (ring) polymers having one, two, and even three designated functional groups at the prescribed positions along their cyclic backbone segment (kyklo-telechelics) have also been obtained by the ESA-CF protocol. And in conjunction with a tandem alkyne-azide addition (i.e., click) and an olefin metathesis (i.e., clip) reaction, the precision design of complex multicyclic macromolecular architectures has been achieved. Thus, a series of tri-, tetra-, and even hexacyclic polymer topologies of spiro- and bridged-forms and three doubly fused-tricycle (β-, γ-, and δ-graph) forms, as well as a triply fused-tetracyclic and a quadruply fused-pentacyclic form (unfolded tetrahedron-graph, and "shippo"-form, respectively) were effectively constructed. Furthermore, the hybrid multicyclic polymer constructions comprised of three subclasses of spiro, bridged, and fused units have been produced using complementary pairs of single cyclic and dicyclic kyklo-telechelic precursors obtainable by the ESA-CF process. Upon these synthetic developments, we are now entering into an exciting new era of polymer science and polymer materials engineering based on the precision design of polymer topologies, which appears comparable to the "Cambrian explosion period" experienced in the evolution of life systems.
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Affiliation(s)
- Yasuyuki Tezuka
- Department of Organic and
Polymeric Materials, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8552, Japan
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5
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He Q, Mao J, Wesdemiotis C, Quirk RP, Foster MD. Synthesis and Isomeric Characterization of Well-Defined 8-Shaped Polystyrene Using Anionic Polymerization, Silicon Chloride Linking Chemistry, and Metathesis Ring Closure. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01121] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Qiming He
- Department
of Polymer Science and ‡Department of Chemistry, The University of Akron, Akron, Ohio 44325, United States
| | - Jialin Mao
- Department
of Polymer Science and ‡Department of Chemistry, The University of Akron, Akron, Ohio 44325, United States
| | - Chrys Wesdemiotis
- Department
of Polymer Science and ‡Department of Chemistry, The University of Akron, Akron, Ohio 44325, United States
| | - Roderic P. Quirk
- Department
of Polymer Science and ‡Department of Chemistry, The University of Akron, Akron, Ohio 44325, United States
| | - Mark D. Foster
- Department
of Polymer Science and ‡Department of Chemistry, The University of Akron, Akron, Ohio 44325, United States
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6
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7
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Vakhrushev AV, Gorbunov AA. Theory of chromatography of partially cyclic polymers: Tadpole-type and manacle-type macromolecules. J Chromatogr A 2016; 1433:56-65. [DOI: 10.1016/j.chroma.2015.12.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 12/14/2015] [Accepted: 12/15/2015] [Indexed: 10/22/2022]
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8
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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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9
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Wang G, Li X, Yang D, Gao Y, Li H. Synthesis of well-defined 8-shaped polymers by the combination of RAFT polymerization and click reaction. Des Monomers Polym 2013. [DOI: 10.1080/15685551.2013.840479] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Affiliation(s)
- Guanchun Wang
- College of Chemistry, Xiangtan University, Hunan Province, Xiangtan, 411105, P.R. China
| | - Xiangling Li
- College of Chemistry, Xiangtan University, Hunan Province, Xiangtan, 411105, P.R. China
| | - Duanguang Yang
- College of Chemistry, Xiangtan University, Hunan Province, Xiangtan, 411105, P.R. China
| | - Yong Gao
- College of Chemistry, Xiangtan University, Hunan Province, Xiangtan, 411105, P.R. China
| | - Huaming Li
- College of Chemistry, Xiangtan University, Hunan Province, Xiangtan, 411105, P.R. China
- Key Laboratory of Polymeric Materials & Application Technology of Hunan Province, and Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province, Xiangtan, 411105, P.R. China
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10
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Polymer networks by ionic association and covalent fixation based on ring opening of cyclic ammonium ions. REACT FUNCT POLYM 2013. [DOI: 10.1016/j.reactfunctpolym.2012.05.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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11
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Jia Z, Lonsdale DE, Kulis J, Monteiro MJ. Construction of a 3-Miktoarm Star from Cyclic Polymers. ACS Macro Lett 2012; 1:780-783. [PMID: 35607104 DOI: 10.1021/mz300259v] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Cyclic polymers have intriguing physical properties, including those found in biological membranes for greater temperature, salt and acid stability. Although, many unique and complex synthetic cyclic structures have been prepared, there are no reports of ABC miktoarm stars constructed of three cyclic polymers with very different chemical compositions. We report such a structure in one pot at 25 °C by modulating the copper catalyst activity using combinations of solvents and ligands.
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Affiliation(s)
- Zhongfan Jia
- Australian
Institute for Bioengineering
and Nanotechnology, University of Queensland, Brisbane 4072, Australia
| | - Daria E. Lonsdale
- Australian
Institute for Bioengineering
and Nanotechnology, University of Queensland, Brisbane 4072, Australia
| | - Jakov Kulis
- Australian
Institute for Bioengineering
and Nanotechnology, University of Queensland, Brisbane 4072, Australia
| | - Michael J. Monteiro
- Australian
Institute for Bioengineering
and Nanotechnology, University of Queensland, Brisbane 4072, Australia
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12
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13
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14
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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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15
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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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16
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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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17
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Wang Y, Teraoka I, Hansen FY, Peters GH, Hassager O. Mean Span Dimensions of Ideal Polymer Chains Containing Branches and Rings. Macromolecules 2010. [DOI: 10.1021/ma102308q] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yanwei Wang
- Danish Polymer Center, Department of Chemical and Biochemical Engineering, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
| | - Iwao Teraoka
- Department of Chemical and Biological Sciences, Polytechnic Institute of New York University, 333 Jay Street, Brooklyn, New York 11201, United States
| | - Flemming Y. Hansen
- Department of Chemistry, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
| | - Günther H. Peters
- Department of Chemistry, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
- MEMPHYS-Center for Biomembrane Physics, DK-2800 Kgs. Lyngby, Denmark
| | - Ole Hassager
- Danish Polymer Center, Department of Chemical and Biochemical Engineering, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
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18
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Ishikawa K, Yamamoto T, Harada H, Tezuka Y. Synthesis and Topological Conversion of an 8-shaped Poly(THF) Having a Metathesis-Cleavable Unit at the Focal Position. Macromolecules 2010. [DOI: 10.1021/ma1012094] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kazuyuki Ishikawa
- 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
| | - Hiroyuki Harada
- 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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19
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20
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Herndon JW. The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the Year 2007. Coord Chem Rev 2009. [DOI: 10.1016/j.ccr.2008.12.013] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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21
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Dong YQ, Tong YY, Dong BT, Du FS, Li ZC. Preparation of Tadpole-Shaped Amphiphilic Cyclic PS-b-linear PEO via ATRP and Click Chemistry. Macromolecules 2009. [DOI: 10.1021/ma802361h] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yong-Quan Dong
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Polymer Chemistry & Physics of Ministry of Education, Department of Polymer Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Yin-Yin Tong
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Polymer Chemistry & Physics of Ministry of Education, Department of Polymer Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Bo-Tao Dong
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Polymer Chemistry & Physics of Ministry of Education, Department of Polymer Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Fu-Sheng Du
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Polymer Chemistry & Physics of Ministry of Education, Department of Polymer Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Zi-Chen Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Polymer Chemistry & Physics of Ministry of Education, Department of Polymer Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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22
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Adachi K, Tezuka Y. Topological Polymer Chemistry in Pursuit of Elusive Polymer Ring Constructions. J SYN ORG CHEM JPN 2009. [DOI: 10.5059/yukigoseikyokaishi.67.1136] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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23
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Vakhrushev AV, Gorbunov AA, Tezuka Y, Tsuchitani A, Oike H. Liquid Chromatography of Theta-Shaped and Three-Armed Star Poly(tetrahydrofuran)s: Theory and Experimental Evidence of Topological Separation. Anal Chem 2008; 80:8153-62. [DOI: 10.1021/ac801229f] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Andrey V. Vakhrushev
- Institute for Highly Pure Biopreparations, 7 Pudozhskaya, 197110, St. Petersburg, Russia, and Department of Organic and Polymeric Materials, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Alexei A. Gorbunov
- Institute for Highly Pure Biopreparations, 7 Pudozhskaya, 197110, St. Petersburg, Russia, and Department of Organic and Polymeric Materials, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Yasuyuki Tezuka
- Institute for Highly Pure Biopreparations, 7 Pudozhskaya, 197110, St. Petersburg, Russia, and Department of Organic and Polymeric Materials, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Akiko Tsuchitani
- Institute for Highly Pure Biopreparations, 7 Pudozhskaya, 197110, St. Petersburg, Russia, and Department of Organic and Polymeric Materials, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Hideaki Oike
- Institute for Highly Pure Biopreparations, 7 Pudozhskaya, 197110, St. Petersburg, Russia, and Department of Organic and Polymeric Materials, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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24
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Tezuka Y, Ohtsuka T, Adachi K, Komiya R, Ohno N, Okui N. A Defect-Free
Ring Polymer: Size-Controlled Cyclic Poly(tetrahydrofuran) Consisting Exclusively of the Monomer Unit. Macromol Rapid Commun 2008. [DOI: 10.1002/marc.200800103] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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25
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Hayashi S, Adachi K, Tezuka Y. ATRP-RCM Synthesis of 8-Shaped Poly(methyl acrylate) Using a 4-Armed Star Telechelics. Polym J 2008. [DOI: 10.1295/polymj.pj2008037] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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