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Mohottalalage SS, Kosgallana C, Meedin S, O’Connor TC, Grest GS, Perahia D. Response of Sulfonated Polystyrene Melts to Nonlinear Elongation Flows. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Supun S. Mohottalalage
- Department of Chemistry, Clemson University, Clemson, South Carolina 29634, United States
| | - Chathurika Kosgallana
- Department of Chemistry, Clemson University, Clemson, South Carolina 29634, United States
| | - Shalika Meedin
- Department of Chemistry, Clemson University, Clemson, South Carolina 29634, United States
| | - Thomas C. O’Connor
- Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Gary S. Grest
- Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Dvora Perahia
- Department of Chemistry, Clemson University, Clemson, South Carolina 29634, United States
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Wu S, Chen Q. Advances and New Opportunities in the Rheology of Physically and Chemically Reversible Polymers. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01605] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Shilong Wu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Quan Chen
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
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Liu S, Cao X, Huang C, Weiss RA, Zhang Z, Chen Q. Brittle-to-Ductile Transition of Sulfonated Polystyrene Ionomers. ACS Macro Lett 2021; 10:503-509. [PMID: 35549231 DOI: 10.1021/acsmacrolett.1c00018] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This study examines the brittle-to-ductile transition of sulfonated polystyrene ionomers (SPS) with different counterions. The polystyrene precursor was unentangled and had two ionic groups per chain on average. Thus, its terminal relaxation time was comparable to the lifetime of the associating ionic groups. Three types of ionomer samples were used to tune the association lifetime: (1) fully neutralized SPS with different alkali-metal counterions, (2) fully neutralized SPS with mixed sodium and cesium counterions, and (3) partially neutralized SPS with sodium or cesium counterions. For all three systems, the brittle-to-ductile transition could be represented by a diagram of two Weissenberg numbers, Wi and WiR, defined with respect to the terminal and Rouse relaxation times, respectively. A flowable region existed at sufficiently low Wi, independent of WiR. At higher Wi, a brittle-to-ductile transition of the ionomer melt occurred above a critical value of WiR. To achieve ductility during the application of rapid elongational flow, the Rouse-type motions should be sufficiently slow relative to the rate of ion-dissociation, so that the strain-induced breakup of the ionic cross-links would not cause very strong chain retraction that may further lead to the macroscopic fracture.
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Affiliation(s)
- Shuang Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun, China
- University of Science and Technology of China, 230026 Hefei, China
| | - Xiao Cao
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun, China
- University of Science and Technology of China, 230026 Hefei, China
| | - Chongwen Huang
- Department of Polymer Engineering, University of Akron, Akron, Ohio 44325, United States
| | - R. A. Weiss
- Department of Polymer Engineering, University of Akron, Akron, Ohio 44325, United States
| | - Zhijie Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun, China
| | - Quan Chen
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun, China
- University of Science and Technology of China, 230026 Hefei, China
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Lee H, Stryutsky A, Mahmood AU, Singh A, Shevchenko VV, Yingling YG, Tsukruk VV. Weakly Ionically Bound Thermosensitive Hyperbranched Polymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:2913-2927. [PMID: 33621461 DOI: 10.1021/acs.langmuir.0c03487] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We synthesized novel amphiphilic hyperbranched polymers (HBPs) with variable contents of weakly ionically tethered thermoresponsive poly(N-isopropylacrylamide) (PNIPAM) macrocations in contrast to traditional covalent linking. Their assembling behavior was studied below and above the lower critical solution temperature (LCST). The HBPs underwent a morphological transition under changing temperature and ionic strength due to the LCST transition of PNIPAM and the reduction in the ionization degree of terminal ionic groups, respectively. We suggest that, in contrast to traditional branched polymers, ionically linked PNIPAM macrocations can reversibly disassociate from the sulfonate groups and form mobile coronas, endowing the dynamic micellar morphologies. In addition, assembly at the air-water interface confined PNIPAM macrocations and resulted in the formation of heterogeneous Langmuir-Blodgett (LB) monolayers with diverse surface morphologies for different peripheral compositions with circular domains formed in the condensed state. The HBPs with 25% PNIPAM showed larger and more stable circular domains that were partially preserved at high compression than those of HBPs with 50% PNIPAM. Moreover, the LB monolayers showed variable surface mechanical and surface charge distribution, which can be attributed to net dipole redistribution caused by the behavior of mobile PNIPAM macrocations and core sulfonate groups.
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Affiliation(s)
- Hansol Lee
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Alexandr Stryutsky
- Institute of Macromolecular Chemistry of the National Academy of Sciences of Ukraine, Kharkivske Shosse 48, Kyiv 02160, Ukraine
| | - Akhlak-Ul Mahmood
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695-7907, United States
| | - Abhishek Singh
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695-7907, United States
| | - Valery V Shevchenko
- Institute of Macromolecular Chemistry of the National Academy of Sciences of Ukraine, Kharkivske Shosse 48, Kyiv 02160, Ukraine
| | - Yaroslava G Yingling
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695-7907, United States
| | - Vladimir V Tsukruk
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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Potaufeux JE, Odent J, Notta-Cuvier D, Lauro F, Raquez JM. A comprehensive review of the structures and properties of ionic polymeric materials. Polym Chem 2020. [DOI: 10.1039/d0py00770f] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This review focuses on the mechanistic approach, the structure–property relationship and applications of ionic polymeric materials.
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Affiliation(s)
- Jean-Emile Potaufeux
- Laboratory of Polymeric and Composite Materials (LPCM)
- Center of Innovation and Research in Materials and Polymers (CIRMAP)
- University of Mons (UMONS)
- Mons
- Belgium
| | - Jérémy Odent
- Laboratory of Polymeric and Composite Materials (LPCM)
- Center of Innovation and Research in Materials and Polymers (CIRMAP)
- University of Mons (UMONS)
- Mons
- Belgium
| | - Delphine Notta-Cuvier
- Laboratory of Industrial and Human Automatic Control and Mechanical Engineering (LAMIH)
- UMR CNRS 8201
- University Polytechnique Hauts-De-France (UPHF)
- Le Mont Houy
- France
| | - Franck Lauro
- Laboratory of Industrial and Human Automatic Control and Mechanical Engineering (LAMIH)
- UMR CNRS 8201
- University Polytechnique Hauts-De-France (UPHF)
- Le Mont Houy
- France
| | - Jean-Marie Raquez
- Laboratory of Polymeric and Composite Materials (LPCM)
- Center of Innovation and Research in Materials and Polymers (CIRMAP)
- University of Mons (UMONS)
- Mons
- Belgium
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Li J, Zhang Z, Cao X, Liu Y, Chen Q. The role of electrostatic repulsion in the gelation of poly(vinyl alcohol)/borax aqueous solutions. SOFT MATTER 2018; 14:6767-6773. [PMID: 30066707 DOI: 10.1039/c8sm01019f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This study examined linear viscoelasticity (LVE) of semidilute non-entangled poly(vinyl alcohol) (PVA) and borax aqueous solutions: one borax molecule dissociates into two B(OH)3 molecules and two B(OH)4- ions, and the latter can crosslink the PVA chains. Gelation was observed with increasing concentration of borax in the solutions. Analysis of LVE with the reversible gelation model reveals that although the number density of crosslinking ions increases with increasing concentration of borax, the fraction of the crosslinking ions decreases, which is attributed to the intensified electrostatic repulsion when more sites of the PVA chains are occupied by the ionic crosslinkers.
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Affiliation(s)
- Jingjing Li
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, University of Science and Technology of China, Changchun 130022, China.
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Baeza GP. The Reinforcement Effect in Well-Defined Segmented Copolymers: Counting the Topological Constraints at the Mesoscopic Scale. Macromolecules 2018. [DOI: 10.1021/acs.macromol.7b02208] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Guilhem P. Baeza
- University of Lyon, INSA-Lyon,, CNRS, MATEIS, UMR5510, 7 avenue Jean Capelle, F-69621 Villeurbanne, France
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