1
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Xiao CL, Kobayashi Y, Tsuji Y, Harada A, Yamaguchi H. Efficient Synthesis of Cyclic Poly(ethylene glycol)s under High Concentration Conditions by the Assistance of Pseudopolyrotaxane with Cyclodextrin Derivatives. ACS Macro Lett 2023; 12:1498-1502. [PMID: 37874266 DOI: 10.1021/acsmacrolett.3c00527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
An efficient synthesis of cyclic polymers (CPs) is in high demand due to their unique properties. However, polymer cyclization generally occurs at low concentrations (0.1 g/L), and the synthesis of CPs at high concentrations remains a challenge. Herein an efficient cyclization of poly(ethylene glycol) (Mn = 2000 g/mol, 4000 g/mol) (PEG-2k, PEG-4k) in high concentration (80 g/L) is realized by the assistance of pseudopolyrotaxane (pPRx). Water-soluble pPRx with a U-like-shape inclusion motif is prepared by mixing the 2-hydroxypropyl-γ-cyclodextrin (HPγCD) and PEG with (E)-3,4,5-trimethoxycinnamate (TCA-PEG-2k, TCA-PEG-4k). Subsequent irradiation of the pPRx solution (10-80 g/L) by UV light gives cyclic polymers through the intramolecular [2 + 2] photocycloaddition of the cinnamoyl moieties. The photoreaction of TCA-PEG-2k in the pPRx system gives cyclic monomers (C-1mer) as major products with a yield of 66% at 80 g/L. Additionally, the cyclization of TCA-PEG-4k also gives C-1mer as major products with a yield of 45% at a concentration of 80 g/L.
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Affiliation(s)
- Chun-Lin Xiao
- Department of Macromolecular Science, Graduate School of Science Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Yuichiro Kobayashi
- Department of Macromolecular Science, Graduate School of Science Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI) Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
- Project Research Center for Fundamental Sciences, Graduate School of Science Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Yoshihiro Tsuji
- Department of Macromolecular Science, Graduate School of Science Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Akira Harada
- The Institute of Scientific and Industrial Research Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Hiroyasu Yamaguchi
- Department of Macromolecular Science, Graduate School of Science Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI) Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
- Project Research Center for Fundamental Sciences, Graduate School of Science Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
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2
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Ebe M, Soga A, Fujiwara K, Ree BJ, Marubayashi H, Hagita K, Imasaki A, Baba M, Yamamoto T, Tajima K, Deguchi T, Jinnai H, Isono T, Satoh T. Rotaxane Formation of Multicyclic Polydimethylsiloxane in a Silicone Network: A Step toward Constructing "Macro-Rotaxanes" from High-Molecular-Weight Axle and Wheel Components. Angew Chem Int Ed Engl 2023; 62:e202304493. [PMID: 37458573 DOI: 10.1002/anie.202304493] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Indexed: 08/24/2023]
Abstract
Rotaxanes consisting of a high-molecular-weight axle and wheel components (macro-rotaxanes) have high structural freedom, and are attractive for soft-material applications. However, their synthesis remains underexplored. Here, we investigated macro-rotaxane formation by the topological trapping of multicyclic polydimethylsiloxanes (mc-PDMSs) in silicone networks. mc-PDMS with different numbers of cyclic units and ring sizes was synthesized by cyclopolymerization of a α,ω-norbornenyl-functionalized PDMS. Silicone networks were prepared in the presence of 10-60 wt % mc-PDMS, and the trapping efficiency of mc-PDMS was determined. In contrast to monocyclic PDMS, mc-PDMSs with more cyclic units and larger ring sizes can be quantitatively trapped in the network as macro-rotaxanes. The damping performance of a 60 wt % mc-PDMS-blended silicone network was evaluated, revealing a higher tan δ value than the bare PDMS network. Thus, macro-rotaxanes are promising as non-leaching additives for network polymers.
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Affiliation(s)
- Minami Ebe
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, 060-8628, Japan
| | - Asuka Soga
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, 060-8628, Japan
| | - Kaiyu Fujiwara
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, 060-8628, Japan
| | - Brian J Ree
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo, 060-8628, Japan
| | - Hironori Marubayashi
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, 980-8577, Japan
| | - Katsumi Hagita
- Department of Applied Physics, National Defense Academy, Yokosuka, 239-8686, Japan
| | - Atsushi Imasaki
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, 980-8577, Japan
| | - Miru Baba
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo, 060-8628, Japan
| | - Takuya Yamamoto
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo, 060-8628, Japan
| | - Kenji Tajima
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo, 060-8628, Japan
| | - Tetsuo Deguchi
- Department of Physics, Faculty of Core Research, Ochanomizu University, Tokyo, 112-8610, Japan
| | - Hiroshi Jinnai
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, 980-8577, Japan
| | - Takuya Isono
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo, 060-8628, Japan
| | - Toshifumi Satoh
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo, 060-8628, Japan
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3
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Effects of macromonomer chain length, solvent and concentration on the cyclization kinetics during AB-type step-growth polymerization. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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4
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Murashima T, Hagita K, Kawakatsu T. Topological Transition in Multicyclic Chains with Structural Symmetry Inducing Stress-Overshoot Phenomena in Multicyclic/Linear Blends under Biaxial Elongational Flow. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Takahiro Murashima
- Department of Physics, Tohoku University, 6-3 Aramaki-aza-Aoba, Aoba-ku, Sendai980-8578, Japan
| | - Katsumi Hagita
- Department of Applied Physics, National Defense Academy, 1-10-20 Hashirimizu, Yokosuka239-8686, Japan
| | - Toshihiro Kawakatsu
- Department of Physics, Tohoku University, 6-3 Aramaki-aza-Aoba, Aoba-ku, Sendai980-8578, Japan
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5
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Multicyclic Topology-Enhanced Micelle Stability and pH-Sensitivity. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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6
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Hagita K, Murashima T, Ebe M, Isono T, Satoh T. Trapping probabilities of multiple rings in end-linked gels. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124683] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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7
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Kaluzynski K, Pretula J, Lewinski P, Kaźmierski S, Penczek S. Synthesis and Properties of Functionalized Poly(ε-caprolactone); Chain Polymerization Followed by Polycondensation in One Pot with Initiator and Catalyst in One Molecule. Synthesis and Molecular Structures. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Krzysztof Kaluzynski
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Julia Pretula
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Piotr Lewinski
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Sławomir Kaźmierski
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Stanislaw Penczek
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
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8
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Multicyclic topology-enhanced anticancer drug delivery. J Control Release 2022; 345:278-291. [DOI: 10.1016/j.jconrel.2022.03.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 02/21/2022] [Accepted: 03/08/2022] [Indexed: 11/21/2022]
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9
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Ree BJ, Satoh Y, Jin KS, Isono T, Satoh T. Unimodal and Well-Defined Nanomicelles Assembled by Topology-Controlled Bicyclic Block Copolymers. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c01916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Brian J. Ree
- Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Yusuke Satoh
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Kyeong Sik Jin
- PLS-II Beamline Division, Pohang Accelerator Laboratory, Pohang 37673, Republic of Korea
| | - Takuya Isono
- Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Toshifumi Satoh
- Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
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10
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Hagita K, Murashima T, Sakata N. Mathematical Classification and Rheological Properties of Ring Catenane Structures. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01705] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Katsumi Hagita
- Department of Applied Physics, National Defense Academy, 1-10-20 Hashirimizu, Yokosuka 239-8686, Japan
| | - Takahiro Murashima
- Department of Physics, Tohoku University, 6-3, Aramaki-aza-Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - Naoki Sakata
- Department of Mathematics, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
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11
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Mato Y, Sudo M, Marubayashi H, Ree BJ, Tajima K, Yamamoto T, Jinnai H, Isono T, Satoh T. Densely Arrayed Cage-Shaped Polymer Topologies Synthesized via Cyclopolymerization of Star-Shaped Macromonomers. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01230] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yoshinobu Mato
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Maho Sudo
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Hironori Marubayashi
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Brian J. Ree
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Kenji Tajima
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Takuya Yamamoto
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Hiroshi Jinnai
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Takuya Isono
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Toshifumi Satoh
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
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12
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Herschberg T, Carrillo JMY, Sumpter BG, Panagiotou E, Kumar R. Topological Effects Near Order–Disorder Transitions in Symmetric Diblock Copolymer Melts. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00780] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tom Herschberg
- Department of Computer Science and Engineering, University of Tennessee at Chattanooga, Chattanooga, Tennessee 37403, United States
| | - Jan-Michael Y. Carrillo
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Bobby G. Sumpter
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Eleni Panagiotou
- Department of Mathematics, University of Tennessee at Chattanooga, Chattanooga, Tennessee 37403, United States
| | - Rajeev Kumar
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
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13
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Ree BJ, Satoh Y, Isono T, Satoh T. Highly Ordered Nanoscale Film Morphologies of Block Copolymers Governed by Nonlinear Topologies. ACS Macro Lett 2021; 10:811-818. [PMID: 35549184 DOI: 10.1021/acsmacrolett.1c00204] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Among many properties of cyclic block copolymers, the notable domain spacing (d-spacing) reduction offers nonlinear topology as an effective tool for developing block copolymers for nanolithography. However, the current consensus regarding the topology-morphology correlation is ambiguous and in need of more studies. Here we present the morphological investigation on nanoscale films of cyclic and tadpole-shaped poly(n-decyl glycidyl ether-block-2-(2-(2-methoxyethoxy)ethoxy)ethyl glycidyl ether)s and their linear counterpart via synchrotron grazing-incidence X-ray scattering. All copolymers form phase-separated nanostructures, in which only the nonlinear copolymers form highly ordered and unidirectional nanostructures. Additionally, d-spacings of cyclic and tadpole-shaped block copolymers are 49.3-53.7% and 25.0-32.5% shorter than that of their linear counterpart, respectively, exhibiting greater or comparable d-spacing reductions against the experimentally and theoretically achieved values from the literature. Overall, this study demonstrates that cyclic and tadpole topologies can be utilized in developing materials with miniaturized dimensions, high structural ordering, and unidirectional orientation for various nanotechnology applications.
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Affiliation(s)
- Brian J. Ree
- Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Yusuke Satoh
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Takuya Isono
- Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Toshifumi Satoh
- Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
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14
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Hagita K, Murashima T. Multi-ring configurations and penetration of linear chains into rings on bonded ring systems and polycatenanes in linear chain matrices. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123705] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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15
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Kimura Y, Terashima T. Cation Template-Assisted RAFT Cyclopolymerization of Hexa(Ethylene Glycol) Di(meth)acrylates to Thermoresponsive Pseudo-Crown Ether Polymers. Macromol Rapid Commun 2021; 42:e2000670. [PMID: 33904208 DOI: 10.1002/marc.202000670] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/06/2020] [Indexed: 11/06/2022]
Abstract
Cation template-assisted reversible addition fragmentation/chain transfer (RAFT) cyclopolymerization of hexa(ethylene glycol) diacrylate (PEG6DA) or hexa(ethylene glycol) dimethacrylate (PEG6DMA) is developed as a versatile system to produce large in-chain ring cyclopolymers, thermoresponsive pseudo-crown ether polymers. For an efficient synthesis, potassium hexafluorophosphate (KPF6 ) is employed as a cation template; PEG6DA as well as PEG6DMA recognizes the potassium cation with the hexa(ethylene glycol) spacer to dynamically form a pseudo-cyclic divinyl monomer. Those monomers interacting with the potassium cations are efficiently polymerized with RAFT agents and radical initiators into cyclopolymers comprising 24-membered hexa(ethylene glycol) rings. The cation template-assisted RAFT cyclopolymerization is also effective for the synthesis of amphiphilic random cyclocopolymers bearing hydrophilic hexa(ethylene glycol) rings and hydrophobic butyl groups. Cyclopolymers of PEG6DA and PEG6DMA further show thermoresponsive solubility in water. The cloud point temperature of cyclopoly(PEG6DA)s is higher than that of a cyclopoly(PEG6DMA).
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Affiliation(s)
- Yoshihiko Kimura
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Takaya Terashima
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura Nishikyo-ku, Kyoto, 615-8510, Japan
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16
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Ree BJ, Satoh Y, Isono T, Satoh T. Influence of Topological Confinement on Nanoscale Film Morphologies of Tricyclic Block Copolymers. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00214] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Brian J. Ree
- Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Yusuke Satoh
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Takuya Isono
- Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Toshifumi Satoh
- Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
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17
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Xue X, Chen Y, Li Y, Liang K, Huang W, Yang H, Jiang L, Jiang Q, Chen F, Jiang T, Lin B, Jiang B, Pu H. Remarkable untangled dynamics behavior of multicyclic branched polystyrenes. Chem Commun (Camb) 2021; 57:399-402. [PMID: 33326513 DOI: 10.1039/d0cc07129c] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A typical multicyclic branched-topology polystyrene (c-BPS) with high molecular weight (30 K ≤ Mw MALLS ≤ 300 K g mol-1) and narrow dispersity (1.2 ≤ Đ ≤ 1.3) was efficiently synthesized by combining atom transfer radical polymerization (ATRP) and atom transfer radical coupling (ATRC) techniques. The topological constraints imposed by the presence of cyclic units and branch points had a marked influence on the entanglement behaviors of the polymer chains in solution. Therefore, c-BPS possesses the lowest loss modulus (G'') and viscosity (η), the highest diffusion coefficient (D0), the largest mesh size (ξ) and the fastest terminal relaxation (TR), compared with branched and linear precursors.
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Affiliation(s)
- Xiaoqiang Xue
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou, Jiangsu 213164, People's Republic of China
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18
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Ree BJ, Satoh Y, Isono T, Satoh T. Correlations of nanoscale film morphologies and topological confinement of three-armed cage block copolymers. Polym Chem 2021. [DOI: 10.1039/d1py00421b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three-armed cage block copolymers composed of immiscible blocks in near equivalent volume fractions formed topologically controlled sub-10 nm cylindrical and lamellar nanostructures in nanoscale films.
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Affiliation(s)
- Brian J. Ree
- Faculty of Engineering
- Hokkaido University
- Sapporo 060-8628
- Japan
| | - Yusuke Satoh
- Graduate School of Chemical Sciences and Engineering
- Hokkaido University
- Sapporo 060-8628
- Japan
| | - Takuya Isono
- Faculty of Engineering
- Hokkaido University
- Sapporo 060-8628
- Japan
| | - Toshifumi Satoh
- Faculty of Engineering
- Hokkaido University
- Sapporo 060-8628
- Japan
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19
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Liu C, Zhang HL, Xu W, Pan CY, Hong CY. Synthesis of a multicyclic polymer with hyperbranched structure by click polymerization of an AB2 cyclic macromonomer. Polym Chem 2021. [DOI: 10.1039/d0py01604g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A multicyclic polymer with a hyperbranched structure was successfully synthesized.
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Affiliation(s)
- Chao Liu
- CAS Key Laboratory of Soft Matter Chemistry
- Department of Polymer Science and Engineering
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Hua-Long Zhang
- CAS Key Laboratory of Soft Matter Chemistry
- Department of Polymer Science and Engineering
- University of Science and Technology of China
- Hefei
- 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
- P. R. China
| | - Cai-Yuan Pan
- CAS Key Laboratory of Soft Matter Chemistry
- Department of Polymer Science and Engineering
- University of Science and Technology of China
- Hefei
- 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
- P. R. China
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20
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Song B, Zhang L, Yin H, Liang H, Zhang J, Gu H. ROMP of supramolecular norbornene monomers containing β-cyclodextrin–ferrocene (/adamantane) inclusion complexes. Polym J 2020. [DOI: 10.1038/s41428-020-00398-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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21
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Zhang Z, Nie X, Wang F, Chen G, Huang WQ, Xia L, Zhang WJ, Hao ZY, Hong CY, Wang LH, You YZ. Rhodanine-based Knoevenagel reaction and ring-opening polymerization for efficiently constructing multicyclic polymers. Nat Commun 2020; 11:3654. [PMID: 32694628 PMCID: PMC7374721 DOI: 10.1038/s41467-020-17474-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 06/30/2020] [Indexed: 11/09/2022] Open
Abstract
Cyclic polymers have a number of unique physical properties compared with those of their linear counterparts. However, the methods for the synthesis of cyclic polymers are very limited, and some multicyclic polymers are still not accessible now. Here, we found that the five-membered cyclic structure and electron withdrawing groups make methylene in rhodanine highly active to aldehyde via highly efficient Knoevenagel reaction. Also, rhodanine can act as an initiator for anionic ring-opening polymerization of thiirane to produce cyclic polythioethers. Therefore, rhodanine can serve as both an initiator for ring-opening polymerization and a monomer in Knoevenagel polymerization. Via rhodanine-based Knoevenagel reaction, we can easily incorporate rhodanine moieties in the backbone, side chain, branched chain, etc, and correspondingly could produce cyclic structures in the backbone, side chain, branched chain, etc, via rhodanine-based anionic ring-opening polymerization. This rhodanine chemistry would provide easy access to a wide variety of complex multicyclic polymers.
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Affiliation(s)
- Ze Zhang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, People's Republic of China
| | - Xuan Nie
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, People's Republic of China
| | - Fei Wang
- The First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui, 230001, People's Republic of China
| | - Guang Chen
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, People's Republic of China
| | - Wei-Qiang Huang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, People's Republic of China
| | - Lei Xia
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, People's Republic of China
| | - Wen-Jian Zhang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, People's Republic of China
| | - Zong-Yao Hao
- The First Affiliated Hospital of Anhui Medical University and Institute of Urology, Anhui Medical University, Hefei, Anhui, 230022, People's Republic of 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, People's Republic of China.
| | - Long-Hai Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, People's Republic of China.
| | - Ye-Zi You
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, People's Republic of China.
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22
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Senkum H, Gramlich WM. Cationic Bottlebrush Polymers from Quaternary Ammonium Macromonomers by Grafting‐Through Ring‐Opening Metathesis Polymerization. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.201900476] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
| | - William M. Gramlich
- Department of Chemistry University of Maine 5706 Orono ME 04469 USA
- Advanced Structures and Composites Center University of Maine Orono ME 04469 USA
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23
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Peloquin AJ, Balaich GJ, Iacono ST. Syntheses, crystal structures and Hirshfeld surface analyses of (3a R,4 S,7 R,7a S)-2-(perfluoro-pyridin-4-yl)-3a,4,7,7a-tetra-hydro-4,7-methano-iso-indole-1,3-dione and (3a R,4 S,7 R,7a S)-2-[(perfluoro-pyridin-4-yl)-oxy]-3a,4,7,7a-tetra-hydro-4,7-methano-iso-indole-1,3-dione. ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS 2019; 75:1153-1157. [PMID: 31417783 PMCID: PMC6690472 DOI: 10.1107/s2056989019009769] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 07/08/2019] [Indexed: 11/27/2022]
Abstract
In each of the title compounds, the packing is driven by C—H⋯F intertactions, along with a variety of C—H⋯O, C—O⋯π, and C—F⋯π contacts. Hirshfeld surface analyses were conducted to aid in the visualization of these various influences on the packing. The syntheses and crystal structures of the title compounds, C14H8F4N2O2 and C14H8F4N2O3, are reported. In each crystal, the packing is driven by C—H⋯F intertactions, along with a variety of C—H⋯O, C—O⋯π, and C—F⋯π contacts. Hirshfeld surface analysis was conducted to aid in the visualization of these various influences on the packing: they showed that the largest contributions to the surface contacts arise from H⋯F/F⋯H interactions, followed by H⋯H and O⋯H/H⋯O.
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Affiliation(s)
- Andrew J Peloquin
- Department of Chemistry & Chemistry Research Center, United States Air Force, Academy, Colorado Springs, CO 80840, USA
| | - Gary J Balaich
- Department of Chemistry & Chemistry Research Center, United States Air Force, Academy, Colorado Springs, CO 80840, USA
| | - Scott T Iacono
- Department of Chemistry & Chemistry Research Center, United States Air Force, Academy, Colorado Springs, CO 80840, USA
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24
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Le AN, Liang R, Zhong M. Synthesis and Self‐Assembly of Mixed‐Graft Block Copolymers. Chemistry 2019; 25:8177-8189. [DOI: 10.1002/chem.201900520] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Indexed: 11/12/2022]
Affiliation(s)
- An N. Le
- Department of Chemical and Environmental EngineeringYale University New Haven CT 06511 USA
| | - Ruiqi Liang
- Department of Chemical and Environmental EngineeringYale University New Haven CT 06511 USA
| | - Mingjiang Zhong
- Department of Chemical and Environmental EngineeringYale University New Haven CT 06511 USA
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25
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Mato Y, Honda K, Tajima K, Yamamoto T, Isono T, Satoh T. A versatile synthetic strategy for macromolecular cages: intramolecular consecutive cyclization of star-shaped polymers. Chem Sci 2019; 10:440-446. [PMID: 30746091 PMCID: PMC6335864 DOI: 10.1039/c8sc04006k] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 10/10/2018] [Indexed: 11/21/2022] Open
Abstract
Cage-shaped polymers, or "macromolecular cages", are of great interest as the macromolecular analogues of molecular cages because of their various potential applications in supramolecular chemistry and materials science. However, the systematic synthesis of macromolecular cages remains a great challenge. Herein, we describe a robust and versatile synthetic strategy for macromolecular cages with defined arm numbers and sizes based on the intramolecular consecutive cyclization of highly reactive norbornene groups attached to each end of the arms of a star-shaped polymer precursor. The cyclizations of three-, four-, six-, and eight-armed star-shaped poly(ε-caprolactone)s (PCLs) bearing a norbornenyl group at each arm terminus were effected with Grubbs' third generation catalyst at high dilution. 1H NMR, SEC, and MALDI-TOF MS analyses revealed that the reaction proceeded to produce the desired macromolecular cages with sufficient purity. The molecular sizes of the macromolecular cages were controlled by simply changing the molecular weight of the star-shaped polymer precursors. Systematic investigation of the structure-property relationships confirmed that the macromolecular cages adopt a much more compact conformation, in both the solution and bulk states, as compared to their linear and star-shaped counterparts. This synthetic approach marks a significant advance in the synthesis of complex macromolecular architectures and provides a platform for novel applications using cage-shaped molecules with polymer frameworks.
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Affiliation(s)
- Yoshinobu Mato
- Graduate School of Chemical Sciences and Engineering , Hokkaido University , Sapporo 060-8628 , Japan
| | - Kohei Honda
- Graduate School of Chemical Sciences and Engineering , Hokkaido University , Sapporo 060-8628 , Japan
| | - Kenji Tajima
- Division of Applied Chemistry , Faculty of Engineering , Hokkaido University , Sapporo 060-8628 , Japan . ;
| | - Takuya Yamamoto
- Division of Applied Chemistry , Faculty of Engineering , Hokkaido University , Sapporo 060-8628 , Japan . ;
| | - Takuya Isono
- Division of Applied Chemistry , Faculty of Engineering , Hokkaido University , Sapporo 060-8628 , Japan . ;
| | - Toshifumi Satoh
- Division of Applied Chemistry , Faculty of Engineering , Hokkaido University , Sapporo 060-8628 , Japan . ;
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26
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Yoshida K, Yamamoto T, Tajima K, Isono T, Satoh T. Installing a functional group into the inactive ω-chain end of PMMA and PS-b-PMMA by terminal-selective transesterification. Polym Chem 2019. [DOI: 10.1039/c9py00315k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Various functional groups were incorporated into the inherently inactive ω-chain end of polymethacrylate-based polymers by terminal-selective transesterification.
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Affiliation(s)
- Kohei Yoshida
- Graduate School of Chemical Sciences and Engineering and Faculty of Engineering
- Hokkaido University
- Hokkaido 080-8628
- Japan
| | - Takuya Yamamoto
- Graduate School of Chemical Sciences and Engineering and Faculty of Engineering
- Hokkaido University
- Hokkaido 080-8628
- Japan
| | - Kenji Tajima
- Graduate School of Chemical Sciences and Engineering and Faculty of Engineering
- Hokkaido University
- Hokkaido 080-8628
- Japan
| | - Takuya Isono
- Graduate School of Chemical Sciences and Engineering and Faculty of Engineering
- Hokkaido University
- Hokkaido 080-8628
- Japan
| | - Toshifumi Satoh
- Graduate School of Chemical Sciences and Engineering and Faculty of Engineering
- Hokkaido University
- Hokkaido 080-8628
- Japan
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27
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Zhang X, Dai Y. Recent development of brush polymers via polymerization of poly(ethylene glycol)-based macromonomers. Polym Chem 2019. [DOI: 10.1039/c9py00104b] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Polymerization of poly(ethylene glycol)-based macromonomers is a facile and versatile synthetic method to generate well-defined brush polymers.
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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
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