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Lee J, Lee S, Lee K, Joung H, Choi SK, Kim M, Yang J, Paeng K. Segmental dynamics of polystyrene near polymer-polymer interfaces. J Chem Phys 2024; 160:124902. [PMID: 38516976 DOI: 10.1063/5.0189494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 03/04/2024] [Indexed: 03/23/2024] Open
Abstract
This study investigated the segmental dynamics of polymers near polymer-polymer interfaces by probing the rotation of polymer-tethered fluorescent molecules using imaging rotational fluorescence correlation microscopy. Multilayered films were utilized to provide spatial selectivity relative to different polymer-polymer interfaces. In the experimental setup, for the overlayer polymer, polystyrene (PS) was employed and a 15 nm-thick probe-containing layer was placed ≈25 nm apart from different underlayer polymers with glass transition temperatures (Tg) either lower or higher than that of PS. The underlayer of poly-n-butyl methacrylate had 72 K lower Tg than that of PS, whereas polymethyl methacrylate and polysulfone had 22 and 81 K higher Tg, respectively, than that of PS. Two key dynamic features of the glass transition, the non-Arrhenius temperature dependence and stretched relaxation, were examined to study the influence of soft and hard confinements on the segmental dynamics of the overlayer polymer near the polymer-polymer interfaces. Although complications exist in the probing location owing to the diffusion of the polymer-tethered probe during the annealing protocol to consolidate the multilayers, the results suggest that either the segmental dynamics of the polymer near the polymer-polymer interface do not change owing to the soft and hard confinements or the interfacial perturbation is very short ranged.
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Affiliation(s)
- Jeongin Lee
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Soohyun Lee
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Keonchang Lee
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Hyeyoung Joung
- Department of Chemistry, Yonsei University, Wonju, Gangwon 26493, Republic of Korea
| | - Seung Kun Choi
- Department of Chemistry, Inha University, Incheon 22212, Republic of Korea
| | - Myungwoong Kim
- Department of Chemistry, Inha University, Incheon 22212, Republic of Korea
| | - Jaesung Yang
- Department of Chemistry, Yonsei University, Wonju, Gangwon 26493, Republic of Korea
| | - Keewook Paeng
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea
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Doi Y, Takano A, Takahashi Y, Matsushita Y. Viscoelastic Properties of Dumbbell-Shaped Polystyrenes in Bulk and Solution. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02050] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | - Yoshiaki Takahashi
- Institute for Materials Chemistry and Engineering, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| | - Yushu Matsushita
- Toyota Physical and Chemical Research Institute, Nagakute, Aichi 480-1192, Japan
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Tsalikis DG, Mavrantzas VG. Size and Diffusivity of Polymer Rings in Linear Polymer Matrices: The Key Role of Threading Events. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b02099] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Dimitrios G. Tsalikis
- Department of Chemical Engineering, University of Patras and FORTH-ICE/HT, GR 26504 Patras, Greece
| | - Vlasis G. Mavrantzas
- Department of Chemical Engineering, University of Patras and FORTH-ICE/HT, GR 26504 Patras, Greece
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zürich, CH-8092 Zürich, Switzerland
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Lee E, Jung Y. Slow Dynamics of Ring Polymer Melts by Asymmetric Interaction of Threading Configuration: Monte Carlo Study of a Dynamically Constrained Lattice Model. Polymers (Basel) 2019; 11:E516. [PMID: 30960500 PMCID: PMC6473489 DOI: 10.3390/polym11030516] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 03/11/2019] [Accepted: 03/14/2019] [Indexed: 12/03/2022] Open
Abstract
Abnormally slower diffusional processes than its internal structure relaxation have been observed in ring polymeric melt systems recently. A key structural feature in ring polymer melts is topological constraints which allow rings to assume a threading configuration in the melt phase. In this work, we constructed a lattice model under the assumption of asymmetric diffusivity between two threading rings, and investigated a link between the structural correlation and its dynamic behavior via Monte Carlo simulations. We discovered that the hierarchical threading configurations render the whole system to exhibit abnormally slow dynamics. By analyzing statistical distributions of timescales of threading configurations, we found that the decoupling between internal structure relaxation and diffusion is crucial to understand the threading effects on the dynamics of a ring melt. In particular, in the limit of small but threaded rings, scaling exponents of the diffusion coefficient D and timescale τ diff with respect to the degree of polymerization N agree well with that of the annealed tree model as well as our mean-field analysis. As N increases, however, the ring diffusion abruptly slows down to the glassy behavior, which is supported by a breakdown of the Stokes⁻Einstein relation.
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Affiliation(s)
- Eunsang Lee
- Department of Chemistry, Seoul National University, Seoul 08826, Korea.
| | - YounJoon Jung
- Department of Chemistry, Seoul National University, Seoul 08826, Korea.
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Valentina S, Ogawa T, Nakazono K, Aoki D, Takata T. Efficient Synthesis of Cyclic Block Copolymers by Rotaxane Protocol by Linear/Cyclic Topology Transformation. Chemistry 2016; 22:8759-62. [DOI: 10.1002/chem.201601266] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Stephanie Valentina
- Department of Organic and Polymeric Materials Tokyo Institute of Technology 2-12-1 O-okayama, Meguro-ku Tokyo 152-8552 Japan
| | - Takahiro Ogawa
- Department of Organic and Polymeric Materials Tokyo Institute of Technology 2-12-1 O-okayama, Meguro-ku Tokyo 152-8552 Japan
| | - Kazuko Nakazono
- Department of Organic and Polymeric Materials Tokyo Institute of Technology 2-12-1 O-okayama, Meguro-ku Tokyo 152-8552 Japan
| | - Daisuke Aoki
- Department of Organic and Polymeric Materials Tokyo Institute of Technology 2-12-1 O-okayama, Meguro-ku Tokyo 152-8552 Japan
| | - Toshikazu Takata
- Department of Organic and Polymeric Materials Tokyo Institute of Technology 2-12-1 O-okayama, Meguro-ku Tokyo 152-8552 Japan
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7
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Doi Y, Iwasa Y, Watanabe K, Nakamura M, Takano A, Takahashi Y, Matsushita Y. Synthesis and Characterization of Comb-Shaped Ring Polystyrenes. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00208] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Yuya Doi
- Department of Applied
Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Yutaro Iwasa
- Department of Applied
Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Kazuki Watanabe
- Scientific Instruments
Division, Shoko Scientific Co., Ltd., 1-3-3 Azaminominami, Aoba-ku, Yokohama, Kanagawa 225-0012, Japan
| | - Masahide Nakamura
- Scientific Instruments
Division, Shoko Scientific Co., Ltd., 1-3-3 Azaminominami, Aoba-ku, Yokohama, Kanagawa 225-0012, Japan
| | - Atsushi Takano
- Department of Applied
Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Yoshiaki Takahashi
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1,
Kasuga-koen, Kasuga, Fukuoka 816-8580, Japan
| | - Yushu Matsushita
- Department of Applied
Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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8
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Affiliation(s)
- Yuya Doi
- Department
of Applied Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Atsushi Takano
- Department
of Applied Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Yoshiaki Takahashi
- Institute
for Materials Chemistry and Engineering, Kyushu University, 6-1, Kasuga-koen,
Kasuga, Fukuoka 816-8580, Japan
| | - Yushu Matsushita
- Department
of Applied Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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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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Ogawa T, Nakazono K, Aoki D, Uchida S, Takata T. Effective Approach to Cyclic Polymer from Linear Polymer: Synthesis and Transformation of Macromolecular [1]Rotaxane. ACS Macro Lett 2015; 4:343-347. [PMID: 35596318 DOI: 10.1021/acsmacrolett.5b00067] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report a convenient and scalable synthesis of cyclic poly(ε-caprolactone) (PCL) from its linear counterpart based on the rotaxane protocol. Cyclic PCL was prepared by ring-opening polymerization of ε-caprolactone (ε-CL) initiated by a pseudo[2]rotaxane initiator in the presence of diphenylphosphate (DPP) as a catalyst, followed by capping of the propagation end by using a bulky isocyanate to afford macromolecular [2]rotaxane. The successive intramolecular cyclization to macromolecular [1]rotaxane at the polymer terminus proceeded with good yield. The attractive interaction of the terminal ammonium/crown ether moiety was removed via N-acetylation. This enabled movement of the crown ether wheel along the axle PCL chain to the urethane region of the other terminus in solution state. Size-exclusion chromatography and 2D diffusion-ordered spectroscopy (DOSY) results demonstrated the formation of cyclic PCL from linear PCL, which is further supported by thermal property or crystallinity change before and after transformation.
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Affiliation(s)
- Takahiro Ogawa
- Department of Organic and
Polymeric Materials, Tokyo Institute of Technology, 2-12-1, Ookayama,
Meguro-ku, Tokyo 152-8552, Japan
| | - Kazuko Nakazono
- Department of Organic and
Polymeric Materials, Tokyo Institute of Technology, 2-12-1, Ookayama,
Meguro-ku, Tokyo 152-8552, Japan
| | - Daisuke Aoki
- Department of Organic and
Polymeric Materials, Tokyo Institute of Technology, 2-12-1, Ookayama,
Meguro-ku, Tokyo 152-8552, Japan
| | - Satoshi Uchida
- Department of Organic and
Polymeric Materials, Tokyo Institute of Technology, 2-12-1, Ookayama,
Meguro-ku, Tokyo 152-8552, Japan
| | - Toshikazu Takata
- Department of Organic and
Polymeric Materials, Tokyo Institute of Technology, 2-12-1, Ookayama,
Meguro-ku, Tokyo 152-8552, Japan
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Doi Y, Matsubara K, Ohta Y, Nakano T, Kawaguchi D, Takahashi Y, Takano A, Matsushita Y. Melt Rheology of Ring Polystyrenes with Ultrahigh Purity. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00076] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Yuya Doi
- Department
of Applied Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Kazuki Matsubara
- Department
of Applied Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Yutaka Ohta
- Department
of Applied Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Tomohiro Nakano
- Department
of Applied Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Daisuke Kawaguchi
- Education
Center for Global Leaders in Molecular System for Devices, Kyushu University, Fukuoka 819-0395, Japan
| | - Yoshiaki Takahashi
- Institute
for Materials Chemistry and Engineering, Kyushu University, 6-1, Kasuga-koen,
Kasuga, Fukuoka 816-8580, Japan
| | - Atsushi Takano
- Department
of Applied Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Yushu Matsushita
- Department
of Applied Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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12
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Lee E, Kim S, Jung Y. Slowing down of ring polymer diffusion caused by inter-ring threading. Macromol Rapid Commun 2015; 36:1115-21. [PMID: 25881785 DOI: 10.1002/marc.201400713] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 03/13/2015] [Indexed: 11/08/2022]
Abstract
Diffusion of long ring polymers in a melt is much slower than the reorganization of their internal structures. While direct evidence for entanglements has not been observed in the long ring polymers unlike linear polymer melts, threading between the rings is suspected to be the main reason for slowing down of ring polymer diffusion. It is, however, difficult to define the threading configuration between two rings because the rings have no chain end. In this work, evidence for threading dynamics of ring polymers is presented by using molecular dynamics simulation and applying a novel analysis method. The simulation results are analyzed in terms of the statistics of persistence and exchange times that have proved useful in studying heterogeneous dynamics of glassy systems. It is found that the threading time of ring polymer melts increases more rapidly with the degree of polymerization than that of linear polymer melts. This indicates that threaded ring polymers cannot diffuse until an unthreading event occurs, which results in the slowing down of ring polymer diffusion.
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Affiliation(s)
- Eunsang Lee
- Department of Chemistry, Seoul National University, Seoul, 151-747, Korea
| | - Soree Kim
- Department of Chemistry, Seoul National University, Seoul, 151-747, Korea
| | - YounJoon Jung
- Department of Chemistry, Seoul National University, Seoul, 151-747, Korea
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13
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Zhang Y, Jiang F, Wang W, Wang Z. Speeding of spherulitic growth rate at the late stage of isothermal crystallization due to interfacial diffusion for double-layer semicrystalline polymer films. J Phys Chem B 2014; 118:9112-7. [PMID: 25052564 DOI: 10.1021/jp506044y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this study a unique phenomenon has been found for isothermal crystallization of double-layer semicrystalline polymer films. It is surprisingly found that there exists a speeding of poly(l-lactic acid) (PLA) spherulitic growth rate for poly(ethylene oxide)/poly(l-lactic acid) (PEO/PLA) double-layer films at the late stage of isothermal crystallization, which does not exist for PLA/PEO blend films and neat PLA films. The mutual diffusion between PEO and PLA layers plays the key factor to bring out the observed speeding of spherulitic growth rate. This type of study provides an avenue for understanding the interplay between polymer crystallization and interfacial diffusion in multilayer polymer films, which is not available when employing the polymer blend films.
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Affiliation(s)
- Yaqiong Zhang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China , Hefei, Anhui Province 230026, P. R. China
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