1
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Bichler KJ, Jakobi B, Klapproth A, Mole RA, Schneider GJ. Position-Dependent Segmental Relaxation in Bottlebrush Polymers. Macromolecules 2024; 57:4729-4736. [PMID: 38827960 PMCID: PMC11140752 DOI: 10.1021/acs.macromol.4c00243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/12/2024] [Accepted: 05/07/2024] [Indexed: 06/05/2024]
Abstract
Segmental dynamics of specifically labeled poly(propylene oxide), PPO, based bottlebrush polymers, PNB-g-PPO, were studied using quasi-elastic neutron scattering. The focus was set to different parts of the side chains to investigate the hypothetical gradual relaxation behavior within the side chains of a bottlebrush polymer. Different sections of the side chains were highlighted for QENS via sequential polymerization of protonated and deuterated monomers to allow the study of the relaxation behavior of the inner and outer parts of the side chain separately. A comparison of these two parts reveals a slowdown due to the grafting process happening across the different regions. This is seen for the segmental relaxation time as well as on the time-dependent mean-square displacement. Additionally, the non-Gaussian parameter, α, shows a decreasing difference from Gaussian behavior with the distance to the backbone. Altogether, this leads to the conclusion that gradual relaxation behavior exists.
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Affiliation(s)
- Karin J. Bichler
- Department
of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Bruno Jakobi
- Department
of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Alice Klapproth
- Australian
Nuclear Science and Technology Organisation, New Illawarra Road, Lucas Heights 2234, NSW, Australia
| | - Richard A. Mole
- Australian
Nuclear Science and Technology Organisation, New Illawarra Road, Lucas Heights 2234, NSW, Australia
| | - Gerald J. Schneider
- Department
of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
- Department
of Physics & Astronomy, Louisiana State
University, Baton Rouge, Louisiana 70803, United States
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2
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Jakobi B, Bichler KJ, Juranyi F, Schneider GJ. Reversed dynamics of bottlebrush polymers with stiff backbone and flexible side chains. J Chem Phys 2024; 160:084901. [PMID: 38385519 DOI: 10.1063/5.0184429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 01/29/2024] [Indexed: 02/23/2024] Open
Abstract
The segmental dynamics of bottlebrush polymers with a stiff backbone and flexible side chains has been studied. The segmental relaxation time of side chains attached to a flexible backbone follows the same trend as linear polymers, an increase with the increasing molecular weight, but is slowed down compared to their linear counterparts. Theoretical work predicts a reversal of the molecular weight dependence of the relaxation time for stiff backbones. As a model for a stiff-g-flexible system, bottlebrushes with poly(norbornene) backbone and poly(propylene oxide) side chains, PNB-g-PPO, at a uniform grafting density have been synthesized and characterized with quasi-elastic neutron scattering. Indeed, the anticipated reversed dynamics was found. Increasing the side chain length decreases the segmental relaxation time. This indicates the importance of the characteristics of the grafting site beyond a simplified picture of an attached side chain. The mean square displacement shows a similar trend with longer side chains exhibiting a larger displacement.
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Affiliation(s)
- Bruno Jakobi
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, USA
| | - Karin J Bichler
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, USA
| | - Fanni Juranyi
- Laboratory for Neutron Scattering, Paul Scherrer Institute, CH-5232 Villigen, Switzerland
| | - Gerald J Schneider
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, USA
- Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA
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3
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Zimny S, Tarnacka M, Wojnarowska Z, Heczko D, Maksym P, Paluch M, Kamiński K. Impact of the graft’ structure on the behavior of PMMS-based brushes. High pressure studies. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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4
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Bichler KJ, Jakobi B, Klapproth A, Tominaga T, Mole RA, Schneider GJ. Side Chain Dynamics of Poly(norbornene)-g-Poly(propylene oxide) Bottlebrush Polymers. Macromol Rapid Commun 2022; 44:e2200902. [PMID: 36564928 DOI: 10.1002/marc.202200902] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/06/2022] [Indexed: 12/25/2022]
Abstract
The segmental dynamics of the side chains of poly(norbornene)-g-poly(propylene oxide) (PNB-g-PPO) bottlebrush polymer in comparison to PPO is studied by quasi-elastic neutron scattering. Having experimental time and length scale information simultaneously allows to extract spatial information in addition to relaxation time. Tethering one end of the PPO side chain onto a stiff PNB backbone slows down the segmental relaxation, over the length and time scales investigated. The power law dependence of the relaxation time on the momentum transfer, Q, indicates a more heterogeneous relaxation pattern for the bottlebrush polymer, whereas the linear PPO has less deviations from a homogenous relaxation. Similar conclusions can be drawn from the time dependent mean square displacement, 〈r2 (t)〉, and the non-Gaussian parameter, α2 (t). Herein, the bottlebrush polymer shows a more restricted dynamics, whereas the linear PPO reaches 〈r2 (t)〉∝t0.5 at the highest temperature. The deviations from Gaussian behavior are evident at the α2 (t). Both samples show a decaying α2 (t). The non-Gaussian parameter supports the results from the power law dependence of the relaxation times, with lower α2 (t) values for PPO compared to those for PNB-g-PPO, pointing to less deviations from Gaussian behavior.
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Affiliation(s)
- Karin J Bichler
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana, 70803, USA
| | - Bruno Jakobi
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana, 70803, USA
| | - Alice Klapproth
- Australian Nuclear Science and Technology Organisation, New Illawarra Road, Lucas Heights, NSW, 2234, Australia
| | - Taiki Tominaga
- Neutron Science and Technology Center, Comprehensive Research Organization for Science and Society (CROSS), Tokai, 319-1106, Japan
| | - Richard A Mole
- Australian Nuclear Science and Technology Organisation, New Illawarra Road, Lucas Heights, NSW, 2234, Australia
| | - Gerald J Schneider
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana, 70803, USA.,Department of Physics & Astronomy, Louisiana State University, Baton Rouge, Louisiana, 70803, USA
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5
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Bichler KJ, Jakobi B, Honecker D, Stingaciu LR, Weldeghiorghis TK, Collins JHP, Schneider GJ. Dynamics of Bottlebrush Polymers in Solution by Neutron Spin Echo Spectroscopy. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01177] [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)
- Karin J. Bichler
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana70803, United States
| | - Bruno Jakobi
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana70803, United States
| | - Dirk Honecker
- ISIS Facility, Rutherford Appleton Laboratory, DidcotOX11 0QX, United Kingdom
| | - Laura R. Stingaciu
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee37831, United States
| | | | - James H. P. Collins
- National High Magnetic Field Laboratory and Biology and McKnight Brain Institute, University of Florida, Box 100015, Gainesville, Florida32610-0015, United States
| | - Gerald J. Schneider
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana70803, United States
- Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana70803, United States
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6
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Bichler KJ, Jakobi B, Schneider GJ. Dynamics of bottlebrush polymers. EPJ WEB OF CONFERENCES 2022. [DOI: 10.1051/epjconf/202227201002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Bottlebrushes are an interesting class of polymers which shows intriguing material properties often associated with dynamics. While dynamical phenomena in linear polymers are well understood and existing theories can describe them in a good way, bottlebrush dynamics have only rarely been investigated. Therefore, we performed dielectric spectroscopy and quasi-elastic neutron scattering to study the dynamics of polydimethylsiloxane-based bottlebrush polymers, PDMS-g-PDMS focusing mostly on the segmental dynamics of the side chains. Comparing the relaxation times of the α – relaxation, tracked with dielectric spectroscopy, of bottlebrush polymers with those of their respective linear side chains show a slowing down once the side chains are attached to the backbone. This effect diminishes and finally vanishes with increasing side chain length. The time and length scale, offered by quasi-elastic neutron scattering, fits for the segmental dynamics together with faster processes. The Q-dependence of the segmental relaxation times allows to classify bottlebrush polymers as heterogenous including a non-Gaussian character. For such a dynamical system, the mean square displacement needs to be separated into single processes before an overall mean square displacement can be generated by applying the time temperature superposition principle.
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7
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Hu M, Li X, Rzayev J, Russell TP. Hydrolysis-Induced Self-Assembly of High-χ–Low-N Bottlebrush Copolymers. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c02061] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mingqiu Hu
- Polymer Science and Engineering Department, University of Massachusetts Amherst, 120 Governors Drive, Amherst, Massachusetts 01003, United States
| | - Xindi Li
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260-3000, United States
| | - Javid Rzayev
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260-3000, United States
| | - Thomas P. Russell
- Polymer Science and Engineering Department, University of Massachusetts Amherst, 120 Governors Drive, Amherst, Massachusetts 01003, United States
- Materials Science Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
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8
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Fang A, Lin S, Ng FTT, Pan Q. Synthesis of core-shell bottlebrush polymers of poly(polycaprolactone-b-polyethylene glycol) via ring-opening metathesis polymerization. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2021. [DOI: 10.1080/10601325.2021.1969947] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Anqi Fang
- Green Polymer and Catalysis Technology Laboratory (GPACT), College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, China
| | - Shaohui Lin
- Green Polymer and Catalysis Technology Laboratory (GPACT), College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, China
| | - Flora T. T. Ng
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario, Canada
| | - Qinmin Pan
- Green Polymer and Catalysis Technology Laboratory (GPACT), College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, China
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9
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Zhou C, Hou C, Wang L, Chen W, Cheng J. Synthesis and micellar property of amphiphilic brush-arm star copolymers via living ROMP. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Pipertzis A, Papamokos G, Sachnik O, Allard S, Scherf U, Floudas G. Ionic Conductivity in Polyfluorene-Based Diblock Copolymers Comprising Nanodomains of a Polymerized Ionic Liquid and a Solid Polymer Electrolyte Doped with LiTFSI. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00436] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Achilleas Pipertzis
- Department of Physics, University of Ioannina, P.O. Box 1186, 451 10 Ioannina, Greece
| | - George Papamokos
- Department of Physics, University of Ioannina, P.O. Box 1186, 451 10 Ioannina, Greece
| | - Oskar Sachnik
- Bergische Universität Wuppertal, Macromolecular Chemistry Group and Wuppertal Center for Smart Materials and Systems (cm@s), Gauss-Str. 20, D-42119 Wuppertal, Germany
| | - Sybille Allard
- Bergische Universität Wuppertal, Macromolecular Chemistry Group and Wuppertal Center for Smart Materials and Systems (cm@s), Gauss-Str. 20, D-42119 Wuppertal, Germany
| | - Ullrich Scherf
- Bergische Universität Wuppertal, Macromolecular Chemistry Group and Wuppertal Center for Smart Materials and Systems (cm@s), Gauss-Str. 20, D-42119 Wuppertal, Germany
| | - George Floudas
- Department of Physics, University of Ioannina, P.O. Box 1186, 451 10 Ioannina, Greece
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
- University Research Center of Ioannina (URCI) − Institute of Materials Science and Computing, 451 10 Ioannina, Greece
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11
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LaNasa JA, Hickey RJ. Surface-Initiated Ring-Opening Metathesis Polymerization: A Method for Synthesizing Polymer-Functionalized Nanoparticles Exhibiting Semicrystalline Properties and Diverse Macromolecular Architectures. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01381] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Jacob A. LaNasa
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16801, United States
| | - Robert J. Hickey
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16801, United States
- Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16801, United States
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12
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Jakobi B, Bichler KJ, Sokolova A, Schneider GJ. Dynamics of PDMS-g-PDMS Bottlebrush Polymers by Broadband Dielectric Spectroscopy. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01277] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Bruno Jakobi
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Karin J. Bichler
- Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Anna Sokolova
- Australia Center for Neutron Scattering, ANSTO, New Illawarra Road, Lucas Heights 2234, Australia
| | - Gerald J. Schneider
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
- Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, United States
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13
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Alexandris S, Peponaki K, Petropoulou P, Sakellariou G, Vlassopoulos D. Linear Viscoelastic Response of Unentangled Polystyrene Bottlebrushes. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00266] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Stelios Alexandris
- Institute of Electronic Structure and Laser, FORTH, Heraklion 700 13, Crete, Greece
| | - Katerina Peponaki
- Institute of Electronic Structure and Laser, FORTH, Heraklion 700 13, Crete, Greece
- Department of Materials Science and Technology, University of Crete, Heraklion 700 13, Crete, Greece
| | - Paraskevi Petropoulou
- Department of Chemistry, National and Kapodistrian University of Athens, Athens 15784, Greece
| | - Georgios Sakellariou
- Department of Chemistry, National and Kapodistrian University of Athens, Athens 15784, Greece
| | - Dimitris Vlassopoulos
- Institute of Electronic Structure and Laser, FORTH, Heraklion 700 13, Crete, Greece
- Department of Materials Science and Technology, University of Crete, Heraklion 700 13, Crete, Greece
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14
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Costanzo S, Scherz L, Floudas G, Pasquino R, Kröger M, Schlüter AD, Vlassopoulos D. Hybrid Dendronized Polymers as Molecular Objects: Viscoelastic Properties in the Melt. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01412] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Salvatore Costanzo
- Institute of Electronic Structure and Laser, Foundation for Research and Technology—Hellas, Heraklion 70013, Crete, Greece
- Department of Materials Science and Technology, University of Crete, Heraklion 71003, Crete, Greece
- DICMAPI, University of Naples, P.le Tecchio 80, Naples 80125, Italy
| | - Leon Scherz
- Polymer Chemistry and Polymer Physics, Department of Materials, ETH Zurich, 8093 Zurich, Switzerland
| | - George Floudas
- Department of Physics, University of Ioannina, 45110 Ioannina, Greece
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Rossana Pasquino
- DICMAPI, University of Naples, P.le Tecchio 80, Naples 80125, Italy
| | - Martin Kröger
- Polymer Chemistry and Polymer Physics, Department of Materials, ETH Zurich, 8093 Zurich, Switzerland
| | - A. Dieter Schlüter
- Polymer Chemistry and Polymer Physics, Department of Materials, ETH Zurich, 8093 Zurich, Switzerland
| | - Dimitris Vlassopoulos
- Institute of Electronic Structure and Laser, Foundation for Research and Technology—Hellas, Heraklion 70013, Crete, Greece
- Department of Materials Science and Technology, University of Crete, Heraklion 71003, Crete, Greece
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15
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Qian Z, Koh YP, Pallaka MR, Chang AB, Lin TP, Guzmán PE, Grubbs RH, Simon SL, McKenna GB. Linear Rheology of a Series of Second-Generation Dendronized Wedge Polymers. Macromolecules 2019. [DOI: 10.1021/acs.macromol.8b02122] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Zhiyuan Qian
- Department of Chemical Engineering, Texas Tech University, Lubbock, Texas 79409, United States
| | - Yung P. Koh
- Department of Chemical Engineering, Texas Tech University, Lubbock, Texas 79409, United States
| | - Madhusudhan R. Pallaka
- Department of Chemical Engineering, Texas Tech University, Lubbock, Texas 79409, United States
| | - Alice B. Chang
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Tzu-Pin Lin
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Pablo E. Guzmán
- Energetic Technology Branch, U.S. Army Research Laboratory, Aberdeen Proving Ground, Maryland 21005, United States
| | - Robert H. Grubbs
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Sindee L. Simon
- Department of Chemical Engineering, Texas Tech University, Lubbock, Texas 79409, United States
| | - Gregory B. McKenna
- Department of Chemical Engineering, Texas Tech University, Lubbock, Texas 79409, United States
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16
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Alaboalirat M, Qi L, Arrington KJ, Qian S, Keum JK, Mei H, Littrell KC, Sumpter BG, Carrillo JMY, Verduzco R, Matson JB. Amphiphilic Bottlebrush Block Copolymers: Analysis of Aqueous Self-Assembly by Small-Angle Neutron Scattering and Surface Tension Measurements. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b02366] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Mohammed Alaboalirat
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Luqing Qi
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - Kyle J. Arrington
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
| | | | | | - Hao Mei
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | | | | | | | - Rafael Verduzco
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - John B. Matson
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
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17
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López-Barrón CR, Tsou AH, Hagadorn JR, Throckmorton JA. Highly Entangled α-Olefin Molecular Bottlebrushes: Melt Structure, Linear Rheology, and Interchain Friction Mechanism. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01431] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
| | - Andy H. Tsou
- ExxonMobil Chemical Company, Baytown, Texas 77520, United States
| | - John R. Hagadorn
- ExxonMobil Chemical Company, Baytown, Texas 77520, United States
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18
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Wang Y, Weng F, Li J, Lai L, Yu W, Severtson SJ, Wang WJ. Influence of Phase Separation on Performance of Graft Acrylic Pressure-Sensitive Adhesives with Various Copolyester Side Chains. ACS OMEGA 2018; 3:6945-6954. [PMID: 31458860 PMCID: PMC6644624 DOI: 10.1021/acsomega.8b00737] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 06/12/2018] [Indexed: 06/10/2023]
Abstract
Acrylic pressure-sensitive adhesives with various polyester side-chain lengths were synthesized to investigate the effect of branching on phase separation and polymer mechanical performance. The polyester macromonomers (MMs) were produced through ring-opening co-polymerizations of l-lactide (l-LA) and ε-caprolactone (ε-CL) initiated with 2-hydroxyethyl methacrylate (HEMA), which provides the polyester chains with terminal vinyl groups. By varying the HEMA content, a range of MM chain lengths constructed from L10C4 (five l-LA and four ε-CL units) to L100C40 were obtained at a constant monomer mole ratio. Copolymerization of 2-ethylhexyl acrylate and acrylic acid with these MMs at constant mass composition provided a series of comb copolymers consisting of acrylic backbones with polyester branches of various chain lengths. Characterization of thin films cast from the polymers using thermal analysis and scanning probe microscopy showed a transition from a homogeneous phase to the formation of distinct microphases with increasing branching chain lengths. Rheological analysis of the linear viscoelastic responses was also used through small-amplitude oscillatory shear, and dynamic master curves were constructed by time-temperature superposition. The rheological data were also consistent with phase separation for the longer side-chain lengths of L50C20 and L100C40. The extra elastic contribution at low frequency and the temperature dependence of a T both show obviously effect of separated phases. Performance testing of polymer films showed that the chain extension resulted in a significant increase in both peel strength and shear resistance, which was accompanied by a modest decrease in film tackiness. The results demonstrate that tailoring branch chain structures provide a promising means for controlling the properties of the high-biomass content adhesive polymers.
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Affiliation(s)
- Yanjiao Wang
- State
Key Laboratory of Chemical Engineering, College of Chemical and Biological
Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, Zhejiang 310027, China
| | - Feiyin Weng
- State
Key Laboratory of Chemical Engineering, College of Chemical and Biological
Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, Zhejiang 310027, China
| | - Jiaxu Li
- State
Key Laboratory of Chemical Engineering, College of Chemical and Biological
Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, Zhejiang 310027, China
| | - Lei Lai
- State
Key Laboratory of Chemical Engineering, College of Chemical and Biological
Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, Zhejiang 310027, China
| | - Wei Yu
- Advanced
Rheology Institute, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Steven John Severtson
- Department
of Bioproducts and Biosystems Engineering, University of Minnesota, 2004 Folwell Avenue, Saint Paul, Minnesota 55108, United States
| | - Wen-Jun Wang
- State
Key Laboratory of Chemical Engineering, College of Chemical and Biological
Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, Zhejiang 310027, China
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19
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Radzinski SC, Foster JC, Lewis SE, French EV, Matson JB. Factors affecting bottlebrush polymer synthesis by the transfer-to method using reversible addition–fragmentation chain transfer (RAFT) polymerization. Polym Chem 2017. [DOI: 10.1039/c6py01982j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The transfer-to method is a unique way to prepare bottlebrush polymers by reversible addition–fragmentation chain transfer (RAFT) polymerization.
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Affiliation(s)
- Scott C. Radzinski
- Department of Chemistry and Macromolecules Innovation Institute
- Virginia Tech
- Blacksburg
- USA
| | - Jeffrey C. Foster
- Department of Chemistry and Macromolecules Innovation Institute
- Virginia Tech
- Blacksburg
- USA
| | - Sally E. Lewis
- Department of Chemistry and Macromolecules Innovation Institute
- Virginia Tech
- Blacksburg
- USA
| | - Eric V. French
- Department of Chemistry and Macromolecules Innovation Institute
- Virginia Tech
- Blacksburg
- USA
| | - John B. Matson
- Department of Chemistry and Macromolecules Innovation Institute
- Virginia Tech
- Blacksburg
- USA
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20
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Costanzo S, Scherz LF, Schweizer T, Kröger M, Floudas G, Schlüter AD, Vlassopoulos D. Rheology and Packing of Dendronized Polymers. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01311] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Salvatore Costanzo
- Institute
of Electronic Structure and Laser, Foundation for Research and Technology (FORTH), 71110 Heraklion, Crete, Greece
- Department of Materials Science & Technology, University of Crete, 71003 Heraklion, Crete, Greece
| | - Leon F. Scherz
- Department
of Materials, Institute of Polymers, Swiss Federal Institute of Technology (ETH), 8093 Zurich, Switzerland
| | - Thomas Schweizer
- Department
of Materials, Institute of Polymers, Swiss Federal Institute of Technology (ETH), 8093 Zurich, Switzerland
| | - Martin Kröger
- Department
of Materials, Institute of Polymers, Swiss Federal Institute of Technology (ETH), 8093 Zurich, Switzerland
| | - George Floudas
- Department
of Physics, University of Ioannina, 45110 Ioannina, Greece
- Max Planck Institute
for Polymer Research, 55128 Mainz, Germany
| | - A. Dieter Schlüter
- Department
of Materials, Institute of Polymers, Swiss Federal Institute of Technology (ETH), 8093 Zurich, Switzerland
| | - Dimitris Vlassopoulos
- Institute
of Electronic Structure and Laser, Foundation for Research and Technology (FORTH), 71110 Heraklion, Crete, Greece
- Department of Materials Science & Technology, University of Crete, 71003 Heraklion, Crete, Greece
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21
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Giussi JM, Azzaroni O, Hensel-Bielowka S, Wojnarowska Z, Knapik J, Paluch M. Synthesis, characterization and dielectric relaxation study of hyperbranched polymers with different molecular architecture. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.08.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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22
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Radzinski SC, Foster JC, Chapleski RC, Troya D, Matson JB. Bottlebrush Polymer Synthesis by Ring-Opening Metathesis Polymerization: The Significance of the Anchor Group. J Am Chem Soc 2016; 138:6998-7004. [DOI: 10.1021/jacs.5b13317] [Citation(s) in RCA: 126] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Scott C. Radzinski
- Department
of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
- Macromolecules
Innovation Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Jeffrey C. Foster
- Department
of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
- Macromolecules
Innovation Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Robert C. Chapleski
- Department
of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Diego Troya
- Department
of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - John B. Matson
- Department
of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
- Macromolecules
Innovation Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
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23
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24
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Aluculesei A, Pipertzis A, Piunova VA, Miyake GM, Floudas G, Fytas G, Grubbs RH. Thermomechanical Behavior and Local Dynamics of Dendronized Block Copolymers and Constituent Homopolymers. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00779] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- A. Aluculesei
- Department
of Materials Science, FORTH-IESL, P.O. Box 1527, 71110 Heraklion, Greece
| | - A. Pipertzis
- Department
of Physics, University of Ioannina, 45110 Ioannina, Greece
| | - V. A. Piunova
- Arnold
and Mabel Beckmam Laboratories for Chemical Synthesis, Division of
Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - G. M. Miyake
- Arnold
and Mabel Beckmam Laboratories for Chemical Synthesis, Division of
Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - G. Floudas
- Department
of Physics, University of Ioannina, 45110 Ioannina, Greece
| | - G. Fytas
- Department
of Materials Science, FORTH-IESL, P.O. Box 1527, 71110 Heraklion, Greece
- Max Planck Institute
for Polymer Research, D-55128 Mainz, Germany
| | - R. H. Grubbs
- Arnold
and Mabel Beckmam Laboratories for Chemical Synthesis, Division of
Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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25
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Radzinski SC, Foster JC, Matson JB. Synthesis of bottlebrush polymers via transfer-to and grafting-through approaches using a RAFT chain transfer agent with a ROMP-active Z-group. Polym Chem 2015. [DOI: 10.1039/c4py01567c] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A novel dithiocarbamate chain transfer agent for reversible addition–fragmentation chain transfer polymerization with a directly polymerizable Z-group was synthesized and used to make bottlebrush polymers via multiple strategies.
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Affiliation(s)
- Scott C. Radzinski
- Department of Chemistry and Macromolecules and Interfaces Institute
- Virginia Tech
- Blacksburg
- USA
| | - Jeffrey C. Foster
- Department of Chemistry and Macromolecules and Interfaces Institute
- Virginia Tech
- Blacksburg
- USA
| | - John B. Matson
- Department of Chemistry and Macromolecules and Interfaces Institute
- Virginia Tech
- Blacksburg
- USA
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26
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Dang A, Hui CM, Ferebee R, Kubiak J, Li T, Matyjaszewski K, Bockstaller MR. Thermal Properties of Particle Brush Materials: Effect of Polymer Graft Architecture on the Glass Transition Temperature in Polymer-Grafted Colloidal Systems. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/masy.201300062] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alei Dang
- School of Materials Science and Engineering; Northwestern Polytechnical University; Xi'an 710072 People's Republic of China
| | - Chin Ming Hui
- Chemistry Department; Carnegie Mellon University; 4400 Fifth Ave. Pittsburgh PA 15213 USA
| | - Rachel Ferebee
- Department of Materials Science and Engineering; Carnegie Mellon University; 5000 Forbes Ave. Pittsburgh PA 15213 USA
| | - Joshua Kubiak
- Department of Materials Science and Engineering; Carnegie Mellon University; 5000 Forbes Ave. Pittsburgh PA 15213 USA
| | - Tiehu Li
- School of Materials Science and Engineering; Northwestern Polytechnical University; Xi'an 710072 People's Republic of China
| | | | - Michael R. Bockstaller
- Department of Materials Science and Engineering; Carnegie Mellon University; 5000 Forbes Ave. Pittsburgh PA 15213 USA
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27
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Mpoukouvalas A, Li W, Graf R, Koynov K, Matyjaszewski K. Soft Elastomers via Introduction of Poly(butyl acrylate) "Diluent" to Poly(hydroxyethyl acrylate)-Based Gel Networks. ACS Macro Lett 2013; 2:23-26. [PMID: 35581835 DOI: 10.1021/mz300614m] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report a new strategy for the synthesis of stable and well-defined supersoft elastomers. First, four-arm star-like polymers, poly(trimethylsilyloxyethyl acrylate), were synthesized and cross-linked to form a relatively uniform polymer gel network. Second, short poly(n-butyl acrylate) side chains were grown from the initiating sites along the network backbone via atom transfer radical polymerization. These soft side chains act as low molecular weight "diluent" that "swells" the cross-linked polyHEA network, but cannot be leached from it. Using this strategy, materials with shear modulus less than 5 kPa were prepared and the effect of grafted side chain fraction on their mechanical properties was explored.
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Affiliation(s)
| | - Wenwen Li
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth
Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Robert Graf
- Max-Planck Institute for Polymer Research, D-55128 Mainz, Germany
| | - Kaloian Koynov
- Max-Planck Institute for Polymer Research, D-55128 Mainz, Germany
| | - Krzysztof Matyjaszewski
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth
Avenue, Pittsburgh, Pennsylvania 15213, United States
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