1
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Cui X, Jiang N, Shao J, Zhang H, Yang Y, Tang P. Linear and Nonlinear Viscoelasticities of Dissociative and Associative Covalent Adaptable Networks: Discrepancies and Limits. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Xiang Cui
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai200433, China
| | - Nuofei Jiang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai200433, China
| | - Jingyu Shao
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai200433, China
| | - Hongdong Zhang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai200433, China
| | - Yuliang Yang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai200433, China
| | - Ping Tang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai200433, China
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2
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Quienne B, Pinaud J, Caillol S. Synthesis of hydrophobically modified ethoxylated non-isocyanate urethanes (HENIURs) and their use as rheology additives. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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3
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Larson RG, Van Dyk AK, Chatterjee T, Ginzburg VV. Associative Thickeners for Waterborne Paints: Structure, Characterization, Rheology, and Modeling. Prog Polym Sci 2022. [DOI: 10.1016/j.progpolymsci.2022.101546] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Du Z, Guan T, Luo J, Sun N, Ren B. Light-Induced In Situ Chain Extension and Critical Gelation of Benzophenone End-Functionalized Telechelic Associative Polymers in Aqueous Solution. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01352] [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)
- Zhukang Du
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Tao Guan
- School of Material Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Jintian Luo
- Center for Advanced Low Dimension Materials, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University, Shanghai 201620, China
| | - Ning Sun
- Department of Material Technology, Jiangmen Polytechnic, Jiangmen 529090, China
| | - Biye Ren
- School of Material Science and Engineering, South China University of Technology, Guangzhou 510641, China
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5
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Mahmad Rasid I, Do C, Holten-Andersen N, Olsen BD. Effect of sticker clustering on the dynamics of associative networks. SOFT MATTER 2021; 17:8960-8972. [PMID: 34553209 DOI: 10.1039/d1sm00392e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Recent experimental and theoretical work has shown that sticker clustering can be used to enhance properties such as toughness and creep resistance of polymer networks. While it is clear that the changes in properties are related to a change in network topology, the mechanistic relationship is still not well understood. In this work, the effect of sticker clustering was investigated by comparing the dynamics of random copolymers with those where the stickers are clustered at the ends of the chain in the unentangled regime using both linear mechanics and diffusion measurements. Copolymers of N,N-dimethyl acrylamide (DMA) and pendant histidine groups were synthesized using reversible addition-fragmentation chain transfer (RAFT) polymerization. The clustered polymers were synthesized using a bifunctional RAFT agent, such that the midblock consisted of PDMA and the two end blocks were random copolymers of DMA and the histidine-functionalized monomer. Upon addition of Ni ions, transient metal-coordinate crosslinks are formed as histidine-Ni complexes. Combined studies of rheology, neutron scattering and self-diffusion measurements using forced Rayleigh scattering revealed changes to the network topology and stress relaxation modes. The network topology is proposed to consist of aggregates of the histidine-Ni complexes bridged by the non-associative midblock. Therefore, stress relaxation requires the cooperative dissociation of multiple bonds, resulting in increased relaxation times. The increased relaxation times, however, were accompanied by faster diffusion. This is attributed to the presence of defects such as elastically inactive chain loops. This study demonstrates that the effects of cooperative sticker dissociation can be observed even in the presence of a significant fraction of loop defects which are known to alter the nonlinear properties of conventional telechelic polymers.
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Affiliation(s)
- Irina Mahmad Rasid
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.
| | - Changwoo Do
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - Niels Holten-Andersen
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.
| | - Bradley D Olsen
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.
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6
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Liu S, Zhang Z, Chen Q, Matsumiya Y, Watanabe H. Nonlinear Rheology of Telechelic Ionomers Based on Sodium Sulfonate and Carboxylate. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01350] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Shuang Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun, P. R. China
- University of Science and Technology of China, 230026 Hefei, P. R. China
| | - Zhijie Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun, P. R. China
| | - Quan Chen
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun, P. R. China
- University of Science and Technology of China, 230026 Hefei, P. R. China
| | - Yumi Matsumiya
- Institute for Chemical Research, Kyoto University, 611-0011 Uji, Japan
| | - Hiroshi Watanabe
- Institute for Chemical Research, Kyoto University, 611-0011 Uji, Japan
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7
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Chen X, Du Z, Hu Y, Sun N, Ren B. Aggregation and Rheology of a Triblock Supra-amphiphilic Polymer Prepared by Ionic Self-Assembly of a Double-Hydrophilic Polyelectrolyte with an Oppositely Charged Surfactant in Aqueous Solution. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00361] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xi Chen
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Zhukang Du
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yan Hu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Ning Sun
- Department of Material Technology, Jiangmen Polytechnic, Jiangmen 529090, China
| | - Biye Ren
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
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8
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Guan T, Du Z, Peng J, Zhao D, Sun N, Ren B. Polymerizable Hydrophobically Modified Ethoxylated Urethane Acrylate Polymer: Synthesis and Viscoelastic Behavior in Aqueous Systems. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00982] [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)
- Tao Guan
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Zhukang Du
- South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou 510641, China
| | - Jun Peng
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Dongli Zhao
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Ning Sun
- Department of Material Technology, Jiangmen Polytechnic, Jiangmen 529090, China
| | - Biye Ren
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
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9
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Quienne B, Pinaud J, Robin JJ, Caillol S. From Architectures to Cutting-Edge Properties, the Blooming World of Hydrophobically Modified Ethoxylated Urethanes (HEURs). Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01353] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
| | - Julien Pinaud
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France
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10
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Liu S, Wu S, Chen Q. Using Coupling Motion of Connecting Ions in Designing Telechelic Ionomers. ACS Macro Lett 2020; 9:917-923. [PMID: 35648601 DOI: 10.1021/acsmacrolett.0c00256] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Conventional telechelic ionomers have one ion fixed at each end, enabling the chains to form a physical network. Here we report a type of telechelic ionomers with a distribution of the number of ions at the chain ends, which endows them with very rich rheological properties. We synthesized the ionomer samples via a two-step polymerization. Namely, we synthesized a precursor chain first and then polymerized a few ion-containing monomers at its two ends. An average number of ion-containing monomers per chain end, m, varies from 0 to 3.0. Linear viscoelasticity of these samples can be well explained through considering the Poisson distribution of m, and the hierarchical relaxation of the chains ends according to the number of connecting ions that exhibit the coupling motion.
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Affiliation(s)
- Shuang Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, People's Republic of China.,University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Shilong Wu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, People's Republic of China
| | - Quan Chen
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, People's Republic of China.,University of Science and Technology of China, Hefei 230026, People's Republic of China
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11
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Matsumiya Y, Watanabe H, Urakawa O, Inoue T, Kwon Y. Effect of Head-to-Head Association/Dissociation on Viscoelastic and Dielectric Relaxation of Entangled Linear Polyisoprene: An Experimental Test. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b02399] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Yumi Matsumiya
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Hiroshi Watanabe
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Osamu Urakawa
- Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Tadashi Inoue
- Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Youngdon Kwon
- School of Chemical Engineering, Sungkyunkwan University, 300 Cheoncheon-dong, Jangan-gu, Suwon, Gyeonggi-do 440-746, Korea
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12
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Molecular Weight Dependence of Associative Behavior in Polyimide/DMF Solutions. CHINESE JOURNAL OF POLYMER SCIENCE 2019. [DOI: 10.1007/s10118-020-2358-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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Kwon Y, Matsumiya Y, Watanabe H. Dielectric Relaxation of Type-A Chains Undergoing Head-to-Tail Association/Dissociation: Difference from Head-to-Head Case and Correlation with Viscoelastic Relaxation. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01710] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Youngdon Kwon
- School of Chemical Engineering, Sungkyunkwan University, 300 Cheoncheon-dong, Jangan-gu, Suwon, Gyeonggi-do 440-746, Korea
| | - Yumi Matsumiya
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Hiroshi Watanabe
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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14
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Gârlea IC, Jaramillo-Cano D, Likos CN. Self-organization of gel networks formed by block copolymer stars. SOFT MATTER 2019; 15:3527-3540. [PMID: 30944917 DOI: 10.1039/c9sm00111e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The equilibrium properties of block copolymer star networks (BCS) are studied via computer simulations. We employ both molecular dynamics and multiparticle collisional dynamics simulations to investigate the self-organization of BCS with f = 9 functionalized arms close to their overlap concentrations under conditions of different fractions of functionalization and varying attraction strength. We find three distinct macroscopic self-organized states depending on fraction of attractive end-monomers and the strength of the attraction. At weak attractions, ergodic, diffusive liquids result, with short-lived bonds between the stars. As the attraction strength grows, the whole system forms a percolating cluster, while at the same time the individual molecules are diffusive. Finally, arrested gels emerge when the attractions become strong. The conformation of the BCS in these solutions is found to be strongly affected by the concentration, with the stars assuming typically spherical, open configurations in seeking to maximize inter-star associations as opposed to the inter-star collapse that results at infinite dilution, giving rise to strongly aspherical shapes and reduced sizes.
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Affiliation(s)
- Ioana C Gârlea
- Faculty of Physics, University of Vienna, Boltzmanngasse 5, 1090 Vienna, Austria.
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15
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Du Z, Shan Y, Luo J, Sun N, Ren B. Linear Alternating Associative Polymer with Ultrahigh Molecular Weight: Facile Preparation by Self-Assembly Assisted Dimerization of Anthracene and Rheology in Aqueous Solution. ACS Macro Lett 2019; 8:279-284. [PMID: 35650829 DOI: 10.1021/acsmacrolett.9b00028] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Alternating associative polymers (AAPs) containing more than two species of alternating hydrophobic and hydrophilic units can form unique physical network and perform interesting rheological behavior in aqueous solution. In this work, an AAP was prepared through self-assembly assisted dimerization of an anthracene-functionalized telechelic associative polymer (AnTAP) in aqueous solution by light irradiation. It is demonstrated that AnTAP can in situ chain extend to AAP with well-defined linear structure and ultrahigh molecular weight through dimerization reaction of anthracene moieties in the core of micelle under light irradiation. Meanwhile, the solution changes from viscoelastic liquid to a free-standing gel, because a physical network that cannot relax in a finite time window has developed along with the dimerization process. The results are therefore of interest not only for understanding the network structure and rheological properties of AAP solution, but also for preparing AAPs with ultrahigh molecular weight by self-assembly assisted photodimerization reactions.
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Affiliation(s)
- Zhukang Du
- South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, 381 Wushan Road, Guangzhou 510641, China
- School of Material Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510641, China
| | - Yuke Shan
- School of Material Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510641, China
| | - Jintian Luo
- School of Material Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510641, China
| | - Ning Sun
- Department of Material Technology, Jiangmen Polytechnic, Jiangmen 529090, China
| | - Biye Ren
- School of Material Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510641, China
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16
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Wu S, Liu S, Zhang Z, Chen Q. Dynamics of Telechelic Ionomers with Distribution of Number of Ionic Stickers at Chain Ends. Macromolecules 2019. [DOI: 10.1021/acs.macromol.8b01776] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Shilong Wu
- State Key Lab Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Renmin St. 5625, Changchun 130022, Jilin, P. R. China
- University of
Chinese Academy of Sciences, 19A Yuquan Rd., Beijing 100049, P. R. China
| | - Shuang Liu
- State Key Lab Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Renmin St. 5625, Changchun 130022, Jilin, P. R. China
| | - Zhijie Zhang
- State Key Lab Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Renmin St. 5625, Changchun 130022, Jilin, P. R. China
| | - Quan Chen
- State Key Lab Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Renmin St. 5625, Changchun 130022, Jilin, P. R. China
- University of
Chinese Academy of Sciences, 19A Yuquan Rd., Beijing 100049, P. R. China
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17
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Chen H, Liu W, Hong M, Zhang E, Dai X, Chen Q, Yang W, Xue Y, Qiu X, Ji X. Associative behavior of polyimide/cyclohexanone solutions. RSC Adv 2019; 9:27455-27463. [PMID: 35529184 PMCID: PMC9070761 DOI: 10.1039/c9ra05538j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 08/23/2019] [Indexed: 12/22/2022] Open
Abstract
Our previous work has demonstrated that soluble polyimide with relatively weak interaction can be transformed from neutral polymer to associative polymer by increasing molecular weight. Thus, it is necessary to find another way to vary the relatively weak interaction strength, i.e. variation of solvent quality. Herein, viscoelastic behaviors are examined for 2,2-bis(3,4-dicarboxy-phenyl) hexafluoropropane dianhydride (6FDA)-2,2′-bis(trifluoromethyl)-4,4′-diam (TFDB) polyimide (PI), with a relatively low molecular weight (Mw) of 88 000 g mol−1, dissolved in cyclohexanone (CYC). The scaling relationship between viscosity (η0–ηs) and volume fraction is in good agreement with the associative polymer theory proposed by Rubinstein and Semenov. Oscillatory rheological results indicate that the PI solution tends to become a gel with increased volume fraction. The synchrotron radiation small-angle X-ray scattering results imply the existence of dense aggregates in the concentrated PI/CYC solutions. Shear thickening and thinning behaviors are observed in the solutions, and the shear thickening behavior of polyimide solution has not been reported in literature. Their mechanisms are studied by conducting dynamic and steady rheological experiments. Thus, enhancing the relatively weak interaction strength can also make the low Mw polyimide show associative polymer behavior. This work can help us to gain deep insight into polyimide solution properties from dilute to semidilute entangled solutions, and will guide the preparation of polyimide solutions for different processing. Enhancing the relatively weak interaction strength through varying the solvent quality can transform PI from a neutral polymer to an associative polymer.![]()
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18
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Ibrahim MS, Valencony J, King S, Murray M, Szczygiel A, Alexander BD, Griffiths PC. Studying the interaction of hydrophobically modified ethoxylated urethane (HEUR) polymers with sodium dodecylsulfate (SDS) in concentrated polymer solutions. J Colloid Interface Sci 2018; 529:588-598. [DOI: 10.1016/j.jcis.2018.06.042] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Revised: 06/17/2018] [Accepted: 06/19/2018] [Indexed: 11/25/2022]
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19
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Ginzburg VV, Chatterjee T, Nakatani AI, Van Dyk AK. Oscillatory and Steady Shear Rheology of Model Hydrophobically Modified Ethoxylated Urethane-Thickened Waterborne Paints. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:10993-11002. [PMID: 30142976 DOI: 10.1021/acs.langmuir.8b01711] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Hydrophobically modified ethoxylated urethane (HEUR) thickeners are widely used as rheology modifiers for waterborne paints. Although the rheology of HEUR solutions in water is fairly well-understood, their impact on the rheology of waterborne latex/pigment suspensions (formulated paints) is more complicated. We study the shear rheology of model HEUR/latex/TiO2 suspensions in water and investigate the dependence of both oscillatory and steady shear behaviors on the strength of the HEUR hydrophobes. We observe that in both oscillatory and steady shear experiments, rheological curves could be shifted onto a single master curve, demonstrating a "time-hydrophobe superposition". We also note that the oscillatory shear behavior exhibits a power-law spectrum of relaxation times, unlike the single-Maxwellian behavior of pure HEUR solutions. On the basis of these results and earlier experimental and theoretical findings, we propose that the rheology of the HEUR-thickened latex/TiO2 suspensions is mainly determined by the transient network of HEUR-bridged latex particles, with a broad distribution of the characteristic lifetimes of the bridge. The model is found to be in good qualitative and semiquantitative agreement with the experiments for both steady shear and oscillatory shear.
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Affiliation(s)
- Valeriy V Ginzburg
- Materials Science and Engineering , The Dow Chemical Company , Building 1702 , Midland , Michigan 48674 , United States
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20
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Watanabe H, Matsumiya Y, Kwon Y. Viscoelastic and Dielectric Relaxation of Reptating Type-A Chains Affected by Reversible Head-to-Head Association and Dissociation. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00691] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Hiroshi Watanabe
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yumi Matsumiya
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Youngdon Kwon
- School of Chemical Engineering, Sungkyunkwan University, 300 Cheoncheon-dong, Jangan-gu, Suwon, Gyeonggi-do 440-746, Korea
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21
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Du Z, Yan X, Dong R, Ke K, Ren B, Tong Z. Unusual Transient Network and Rheology of a Photoresponsive Telechelic Associative Model Polymer in Aqueous Solution Induced by Dimerization of Coumarin End Groups. Macromolecules 2018. [DOI: 10.1021/acs.macromol.7b01514] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Zhukang Du
- School
of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Xiaolong Yan
- School
of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Renfeng Dong
- School
of Chemistry and Environment, South China Normal University, Guangzhou 510006, China
| | - Kang Ke
- School
of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Biye Ren
- School
of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Zhen Tong
- School
of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
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22
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Influence of substituted structure of Percec-type mini-dendritic end groups on aggregation and rheology of hydrophobically modified ethoxylated urethanes (HEURs) in aqueous solution. POLYMER 2018. [DOI: 10.1016/j.polymer.2017.12.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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23
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Du Z, Ren B, Chang X, Dong R, Tong Z. An End-Bifunctionalized Hydrophobically Modified Ethoxylated Urethane Model Polymer: Multiple Stimuli-Responsive Aggregation and Rheology in Aqueous Solution. Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02301] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Zhukang Du
- School of Materials Science
and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Biye Ren
- School of Materials Science
and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Xueyi Chang
- School of Materials Science
and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Renfeng Dong
- School of Materials Science
and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Zhen Tong
- School of Materials Science
and Engineering, South China University of Technology, Guangzhou 510640, China
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24
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Brassinne J, Gohy JF, Fustin CA. Orthogonal Control of the Dynamics of Supramolecular Gels from Heterotelechelic Associating Polymers. ACS Macro Lett 2016; 5:1364-1368. [PMID: 35651219 DOI: 10.1021/acsmacrolett.6b00831] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
One of the first examples of supramolecular gels presenting independent dual dynamics is built through a combination of hydrophobic and metal-ligand interactions. The associating building block consists in a water-soluble linear polymer terminated by a short hydrophobic sticker at one end, and a coordinating moiety at the other end. The distinct supramolecular nature of these noninterfering binding motifs allows the dynamics of the hydrogels to be finely tuned in an orthogonal fashion by the application of specific stimuli. Precisely, the solvent-induced plasticization of the hydrophobic associations and the acid-promoted dissociation of the metal-ligand complexes are used to control the network dynamics. By opposition to classically encountered binary gel-sol responses, we demonstrate that the stimuli-induced transition in material properties can be gradual, provided that the material structure is well designed and strong enough.
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Affiliation(s)
- Jérémy Brassinne
- Institute of Condensed Matter
and Nanosciences (IMCN), Division of Bio and Soft Matter (BSMA), Université catholique de Louvain, Place L. Pasteur 1, 1348 Louvain-la-Neuve, Belgium
| | - Jean-François Gohy
- Institute of Condensed Matter
and Nanosciences (IMCN), Division of Bio and Soft Matter (BSMA), Université catholique de Louvain, Place L. Pasteur 1, 1348 Louvain-la-Neuve, Belgium
| | - Charles-André Fustin
- Institute of Condensed Matter
and Nanosciences (IMCN), Division of Bio and Soft Matter (BSMA), Université catholique de Louvain, Place L. Pasteur 1, 1348 Louvain-la-Neuve, Belgium
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25
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Chang X, Du Z, Hu F, Cheng Z, Ren B, Fu S, Tong Z. Ferrocene-Functionalized Hydrophobically Modified Ethoxylated Urethane: Redox-Responsive Controlled Self-Assembly and Rheological Behavior in Aqueous Solution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:12137-12145. [PMID: 27800681 DOI: 10.1021/acs.langmuir.6b03508] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this work, we present a novel redox-responsive ferrocene-functionalized hydrophobically modified ethoxylated urethane (Fc-HEUR) model polymer. The effects of a redox-induced hydrophobicity change of ferrocenyl hydrophobes on the self-assembly and rheological properties of Fc-HEUR in aqueous solution were investigated. In view of the redox-induced change in the hydrophilic-lipophilic balance of polymers, the Fc-HEUR polymer in aqueous solution can reversibly self-assemble into spherical micelles and larger micellar aggregates of different nanoscales and also disassemble by redox reactions immediately. Moreover, we have demonstrated that a rearrangement of micellar junctions takes place through a bridge-loop or loop-bridge transition in the concentrated polymer solution followed by redox reactions, which induces a great change in the rheological properties of the polymer solution: a viscoelastic liquid for the reduction state Fc-HEUR and a viscous liquid for the oxidation state Fc+-HEUR, owing to their different relaxation behaviors. Particularly, the associative structures and rheological properties of the Fc-HEUR aqueous solution can be reversibly controlled by redox reactions. This work will be useful not only for understanding of the thickening mechanism of stimuli-responsive HEURs but also for the development of reversible self-assembly and controlled rheological fluids, which may have some special application in drug delivery systems, catalyst supports, sensors, and microfluidic devices.
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Affiliation(s)
| | | | | | - Zhiyu Cheng
- College of Chemistry and Environmental Engineering, Dongguan University of Technology , Dongguan 523808, China
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26
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Huang C, Chen Q, Weiss RA. Nonlinear Rheology of Random Sulfonated Polystyrene Ionomers: The Role of the Sol–Gel Transition. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b02057] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Chongwen Huang
- Department
of Polymer Engineering, University of Akron, Akron, Ohio 44325, United States
| | - Quan Chen
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - R. A. Weiss
- Department
of Polymer Engineering, University of Akron, Akron, Ohio 44325, United States
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27
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Wang F, Peng J, Dong R, Chang X, Ren B, Tong Z. Highly efficient hydrophobically modified ethoxylated urethanes (HEURs) end-functionalized by two-tail dendritic hydrophobes: Synthesis, solution rheological behavior and thickening in latex. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.05.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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28
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Tang S, Habicht A, Li S, Seiffert S, Olsen BD. Self-Diffusion of Associating Star-Shaped Polymers. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00959] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Shengchang Tang
- Department
of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts
Avenue, Cambridge, Massachusetts 02139, United States
| | - Axel Habicht
- Institute
of Physical Chemistry, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany
| | - Shuaili Li
- Department
of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts
Avenue, Cambridge, Massachusetts 02139, United States
| | - Sebastian Seiffert
- Institute
of Physical Chemistry, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany
| | - Bradley D. Olsen
- Department
of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts
Avenue, Cambridge, Massachusetts 02139, United States
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29
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Aggregation and Rheology of an Azobenzene-Functionalized Hydrophobically Modified Ethoxylated Urethane in Aqueous Solution. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00633] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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30
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Kwon Y, Matsumiya Y, Watanabe H. Viscoelastic and Orientational Relaxation of Linear and Ring Rouse Chains Undergoing Reversible End-Association and Dissociation. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00424] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Youngdon Kwon
- School of Chemical Engineering, Sungkyunkwan University, 300 Cheoncheon-dong, Jangan-gu, Suwon, Gyeonggi-do 440-746, Korea
| | - Yumi Matsumiya
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Hiroshi Watanabe
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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31
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Campanella A, Holderer O, Raftopoulos KN, Papadakis CM, Staropoli MP, Appavou MS, Müller-Buschbaum P, Frielinghaus H. Multi-stage freezing of HEUR polymer networks with magnetite nanoparticles. SOFT MATTER 2016; 12:3214-3225. [PMID: 26924466 DOI: 10.1039/c6sm00074f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We observe a change in the segmental dynamics of hydrogels based on hydrophobically modified ethoxylated urethanes (HEUR) when hydrophobic magnetite nanoparticles (MNPs) are embedded in the hydrogels. The dynamics of the nanocomposite hydrogels is investigated using dielectric relaxation spectroscopy (DRS) and neutron spin echo (NSE) spectroscopy. The magnetic nanoparticles within the hydrophobic domains of the HEUR polymer network increase the size of these domains and their distance. The size increase leads to a dilution of the polymers close to the hydrophobic domain, allowing higher mobility of the smallest polymer blobs close to the "center". This is reflected in the decrease of the activation energy of the β-process detected in the DRS data. The increase in distance leads to an increase of the size of the largest hydrophilic polymer blobs. Therefore, the segmental dynamics of the largest blobs is slowed down. At short time scales, i.e. 10(-9) s < τ < 10(-3) s, the suppression of the segmental dynamics is reflected in the α-relaxation processes detected in the DRS data and in the decrease of the relaxation rate Γ of the segmental motion in the NSE data with increasing concentration of magnetic nanoparticles. The stepwise (multi-stage) freezing of the small blobs is only visible for the pure hydrogel at low temperatures. On the other hand, the glass transition temperature (Tg) decreases upon increasing the MNP loading, indicating an acceleration of the segmental dynamics at long time scales (τ∼ 100 s). Therefore, it would be possible to tune the Tg of the hydrogels by varying the MNP concentration. The contribution of the static inhomogeneities to the total scattering function Sst(q) is extracted from the NSE data, revealing a more ordered gel structure than the one giving rise to the total scattering function S(q), with a relaxed correlation length ξNSE = (43 ± 5) Å which is larger than the fluctuating correlation length from a static investigation ξSANS = (17.2 ± 0.3) Å.
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Affiliation(s)
- A Campanella
- JCNS@FRMII, Lichtenbergstraße 1, 85747 Garching, Germany.
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32
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Ginzburg VV, Van Dyk AK, Chatterjee T, Nakatani AI, Wang S, Larson RG. Modeling the Adsorption of Rheology Modifiers onto Latex Particles Using Coarse-Grained Molecular Dynamics (CG-MD) and Self-Consistent Field Theory (SCFT). Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b02080] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Valeriy V. Ginzburg
- The
Dow Chemical Company, Midland, Michigan 48674, United States
- The Dow Chemical Company, Collegeville, Pennsylvania 19477, United States
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Antony Keith Van Dyk
- The
Dow Chemical Company, Midland, Michigan 48674, United States
- The Dow Chemical Company, Collegeville, Pennsylvania 19477, United States
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Tirtha Chatterjee
- The
Dow Chemical Company, Midland, Michigan 48674, United States
- The Dow Chemical Company, Collegeville, Pennsylvania 19477, United States
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Alan Isamu Nakatani
- The
Dow Chemical Company, Midland, Michigan 48674, United States
- The Dow Chemical Company, Collegeville, Pennsylvania 19477, United States
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Shihu Wang
- The
Dow Chemical Company, Midland, Michigan 48674, United States
- The Dow Chemical Company, Collegeville, Pennsylvania 19477, United States
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Ronald G. Larson
- The
Dow Chemical Company, Midland, Michigan 48674, United States
- The Dow Chemical Company, Collegeville, Pennsylvania 19477, United States
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
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33
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Ianniruberto G, Marrucci G. New Interpretation of Shear Thickening in Telechelic Associating Polymers. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01048] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Giovanni Ianniruberto
- Department
of Chemical, Materials,
and Industrial Production Engineering, University Federico II, Piazzale
Tecchio 80, 80125 Naples, Italy
| | - Giuseppe Marrucci
- Department
of Chemical, Materials,
and Industrial Production Engineering, University Federico II, Piazzale
Tecchio 80, 80125 Naples, Italy
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34
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Watanabe H, Matsumiya Y, Masubuchi Y, Urakawa O, Inoue T. Viscoelastic Relaxation of Rouse Chains undergoing Head-to-Head Association and Dissociation: Motional Coupling through Chemical Equilibrium. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00409] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Hiroshi Watanabe
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yumi Matsumiya
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yuichi Masubuchi
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Osamu Urakawa
- Department of Macromolecular
Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Tadashi Inoue
- Department of Macromolecular
Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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35
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Ma L, Wang J, Marconnet AM, Barbati AC, McKinley GH, Liu W, Chen G. Viscosity and thermal conductivity of stable graphite suspensions near percolation. NANO LETTERS 2015; 15:127-133. [PMID: 25469709 DOI: 10.1021/nl503181w] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Nanofluids have received much attention in part due to the range of properties possible with different combinations of nanoparticles and base fluids. In this work, we measure the viscosity of suspensions of graphite particles in ethylene glycol as a function of the volume fraction, shear rate, and temperature below and above the percolation threshold. We also measure and contrast the trends observed in the viscosity with increasing volume fraction to the thermal conductivity behavior of the same suspensions: above the percolation threshold, the slope that describes the rate of thermal conductivity enhancement with concentration reduces compared to below the percolation threshold, whereas that of the viscosity enhancement increases. While the thermal conductivity enhancement is independent of temperature, the viscosity changes show a strong dependence on temperature and exhibit different trends with respect to the temperature at different shear rates above the percolation threshold. Interpretation of the experimental observations is provided within the framework of Stokesian dynamics simulations of the suspension microstructure and suggests that although diffusive contributions are not important for the observed thermal conductivity enhancement, they are important for understanding the variations in the viscosity with changes of temperature and shear rate above the percolation threshold. The experimental results can be collapsed to a single master curve through calculation of a single dimensionless parameter (a Péclet number based on the rotary diffusivity of the graphite particles).
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Affiliation(s)
- Lei Ma
- School of Energy and Power, Huazhong University of Science and Technology , Wuhan 430074, People's Republic of China
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36
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Brassinne J, Jochum FD, Fustin CA, Gohy JF. Revealing the supramolecular nature of side-chain terpyridine-functionalized polymer networks. Int J Mol Sci 2015; 16:990-1007. [PMID: 25569082 PMCID: PMC4307286 DOI: 10.3390/ijms16010990] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Accepted: 12/19/2014] [Indexed: 11/29/2022] Open
Abstract
Nowadays, finely controlling the mechanical properties of polymeric materials is possible by incorporating supramolecular motifs into their architecture. In this context, the synthesis of a side-chain terpyridine-functionalized poly(2-(dimethylamino)ethyl methacrylate) is reported via reversible addition-fragmentation chain transfer polymerization. By addition of transition metal ions, concentrated aqueous solutions of this polymer turn into metallo-supramolecular hydrogels whose dynamic mechanical properties are investigated by rotational rheometry. Hence, the possibility for the material to relax mechanical constrains via dissociation of transient cross-links is brought into light. In addition, the complex phenomena occurring under large oscillatory shear are interpreted in the context of transient networks.
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Affiliation(s)
- Jérémy Brassinne
- Institute of Condensed Matter and Nanosciences (IMCN), Bio- and Soft Matter (BSMA) Division, Université catholique de Louvain (UCL), Place L. Pasteur 1, Louvain-la-Neuve B-1348, Belgium.
| | - Florian D Jochum
- Institute of Condensed Matter and Nanosciences (IMCN), Bio- and Soft Matter (BSMA) Division, Université catholique de Louvain (UCL), Place L. Pasteur 1, Louvain-la-Neuve B-1348, Belgium.
| | - Charles-André Fustin
- Institute of Condensed Matter and Nanosciences (IMCN), Bio- and Soft Matter (BSMA) Division, Université catholique de Louvain (UCL), Place L. Pasteur 1, Louvain-la-Neuve B-1348, Belgium.
| | - Jean-François Gohy
- Institute of Condensed Matter and Nanosciences (IMCN), Bio- and Soft Matter (BSMA) Division, Université catholique de Louvain (UCL), Place L. Pasteur 1, Louvain-la-Neuve B-1348, Belgium.
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37
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Peng J, Dong R, Ren B, Chang X, Tong Z. Novel Hydrophobically Modified Ethoxylated Urethanes End-Capped by Percec-Type Alkyl Substituted Benzyl Alcohol Dendrons: Synthesis, Characterization, and Rheological Behavior. Macromolecules 2014. [DOI: 10.1021/ma500876d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jun Peng
- Research Institute
of Materials Science and ‡The Key Laboratory
of Polymer Processing Engineering,
Ministry of Education, South China University of Technology, Guangzhou 510641, China
| | - Renfeng Dong
- Research Institute
of Materials Science and ‡The Key Laboratory
of Polymer Processing Engineering,
Ministry of Education, South China University of Technology, Guangzhou 510641, China
| | - Biye Ren
- Research Institute
of Materials Science and ‡The Key Laboratory
of Polymer Processing Engineering,
Ministry of Education, South China University of Technology, Guangzhou 510641, China
| | - Xueyi Chang
- Research Institute
of Materials Science and ‡The Key Laboratory
of Polymer Processing Engineering,
Ministry of Education, South China University of Technology, Guangzhou 510641, China
| | - Zhen Tong
- Research Institute
of Materials Science and ‡The Key Laboratory
of Polymer Processing Engineering,
Ministry of Education, South China University of Technology, Guangzhou 510641, China
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38
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Brassinne J, Gohy JF, Fustin CA. Controlling the Cross-Linking Density of Supramolecular Hydrogels Formed by Heterotelechelic Associating Copolymers. Macromolecules 2014. [DOI: 10.1021/ma500537t] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Jérémy Brassinne
- Institute of Condensed Matter
and Nanosciences (IMCN), Bio and Soft Matter Division (BSMA), Université catholique de Louvain, Place L. Pasteur 1, bte L4.01.01, B-1348 Louvain-la-Neuve, Belgium
| | - Jean-François Gohy
- Institute of Condensed Matter
and Nanosciences (IMCN), Bio and Soft Matter Division (BSMA), Université catholique de Louvain, Place L. Pasteur 1, bte L4.01.01, B-1348 Louvain-la-Neuve, Belgium
| | - Charles-André Fustin
- Institute of Condensed Matter
and Nanosciences (IMCN), Bio and Soft Matter Division (BSMA), Université catholique de Louvain, Place L. Pasteur 1, bte L4.01.01, B-1348 Louvain-la-Neuve, Belgium
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39
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Krishnan GR, Yuan Y, Arzumand A, Sarkar D. Gelation characteristics and applications of poly(ethylene glycol) end capped with hydrophobic biodegradable dipeptides. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27198] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- G. Rajesh Krishnan
- Department of Biomedical Engineering; University at Buffalo, State University of New York; Buffalo New York 14260
| | - Yuan Yuan
- Department of Biomedical Engineering; University at Buffalo, State University of New York; Buffalo New York 14260
| | - Ayesha Arzumand
- Department of Biomedical Engineering; University at Buffalo, State University of New York; Buffalo New York 14260
| | - Debanjan Sarkar
- Department of Biomedical Engineering; University at Buffalo, State University of New York; Buffalo New York 14260
- Department of Chemical and Biological Engineering; University at Buffalo, State University of New York; Buffalo New York 14260
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40
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Chatterjee T, Nakatani AI, Van Dyk AK. Shear-Dependent Interactions in Hydrophobically Modified Ethylene Oxide Urethane (HEUR) Based Rheology Modifier–Latex Suspensions: Part 1. Molecular Microstructure. Macromolecules 2014. [DOI: 10.1021/ma401566k] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tirtha Chatterjee
- Analytical
Sciences, The Dow Chemical Company, Midland, Michigan 48667, United States
| | - Alan I. Nakatani
- Analytical
Sciences, The Dow Chemical Company, Collegeville, Pennsylvania 19426, United States
| | - Antony K. Van Dyk
- Dow
Coatings Materials, The Dow Chemical Company, Spring House, Pennsylvania 19477, United States
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