1
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Dhara D, Rahman MA, Abbas Z, Ruzicka E, Benicewicz B, Kumar SK. Melt State Reinforcement of Polyisoprene by Silica Nanoparticles Grafted with Polyisoprene. ACS Macro Lett 2022; 11:1325-1330. [PMID: 36346749 DOI: 10.1021/acsmacrolett.2c00507] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We systematically vary the nanoparticle (NP) dispersion state in composites formed by mixing polyisoprene homopolymers with polyisoprene grafted silica particles, and demonstrate how creep measurements allow us to overcome the limitations of small amplitude oscillatory shear (SAOS) experiments. This allows us to access nearly 13 orders in time in the mechanical response of the resulting composites. We find that a specific NP morphology, a percolating particle network achieved at intermediate graft densities, significantly reinforces the system and has a lower NP percolation loading threshold relative to other morphologies. These important effects of morphology only become apparent when we combine creep measurements with SAOS re-emphasizing the role of synergistically combining methods to access the mechanical properties of polymer nanocomposites over broad frequency ranges.
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Affiliation(s)
- Deboleena Dhara
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Md Anisur Rahman
- Chemical Science Division, Oakridge National Laboratory, Oakridge, Tennessee 37830, United States.,Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Zaid Abbas
- Department of Chemistry, Wasit University, Hay Al-Rabea, Kut, Wasit 52001, Iraq.,Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Eric Ruzicka
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Brian Benicewicz
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Sanat K Kumar
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
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2
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Vislavath P, Billa S, S P, Bahadur J, Sudarshan K, Patro TU, Rath SK, Ratna D. Heterogeneous Coordination Environment and Unusual Self-Assembly of Ionic Aggregates in a Model Ionomeric Elastomer: Effect of Curative Systems. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Prakash Vislavath
- Polymer Division, Naval Materials Research Laboratory, Ambernath, Maharashtra 421506, India
| | - Srikanth Billa
- Polymer Division, Naval Materials Research Laboratory, Ambernath, Maharashtra 421506, India
| | - Praveen S
- Polymer Division, Naval Materials Research Laboratory, Ambernath, Maharashtra 421506, India
| | - Jitendra Bahadur
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Kathi Sudarshan
- Radio Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - T. Umasankar Patro
- Department of Metallurgical & Materials Engineering, Defence Institute of Advanced Technology, Pune, Maharashtra 411025, India
| | - Sangram K. Rath
- Polymer Division, Naval Materials Research Laboratory, Ambernath, Maharashtra 421506, India
| | - Debdatta Ratna
- Polymer Division, Naval Materials Research Laboratory, Ambernath, Maharashtra 421506, India
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3
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Robbes AS, Jestin J, Meneau F, Dalmas F, Boué F, Cousin F. In Situ SAXS and SANS Monitoring of Both Nanofillers and Polymer Chain Microstructure under Uniaxial Stretching in a Nanocomposite with a Controlled Anisotropic Structure. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anne-Sophie Robbes
- Laboratoire Léon Brillouin, CEA Saclay, 91191 Gif-sur-Yvette Cedex France
- Synchrotron SOLEIL, L’Orme des Merisiers,
P.O. Box 48, Saint-Aubin, 91192 Gif sur Yvette, France
| | - Jacques Jestin
- Laboratoire Léon Brillouin, CEA Saclay, 91191 Gif-sur-Yvette Cedex France
| | - Florian Meneau
- Synchrotron SOLEIL, L’Orme des Merisiers,
P.O. Box 48, Saint-Aubin, 91192 Gif sur Yvette, France
| | - Florent Dalmas
- Institut de Chimie et des Matériaux Paris-Est, CNRS UMR 7182, 2-8 rue Henri Dunant, 94320 Thiais France
| | - François Boué
- Laboratoire Léon Brillouin, CEA Saclay, 91191 Gif-sur-Yvette Cedex France
| | - Fabrice Cousin
- Laboratoire Léon Brillouin, CEA Saclay, 91191 Gif-sur-Yvette Cedex France
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4
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Jhalaria M, Jimenez AM, Mathur R, Tekell MC, Huang Y, Narayanan S, Benicewicz BC, Kumar SK. Long-Term Aging in Miscible Polymer Nanocomposites. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mayank Jhalaria
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Andrew M. Jimenez
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Reha Mathur
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Marshall C. Tekell
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Yucheng Huang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Suresh Narayanan
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Brian C. Benicewicz
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Sanat K. Kumar
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
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5
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Senses E, Kitchens CL, Faraone A. Viscosity reduction in polymer nanocomposites: Insights from dynamic neutron and X‐ray scattering. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20210320] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Erkan Senses
- Department of Chemical and Biological Engineering Koc University Istanbul Turkey
| | - Christopher L. Kitchens
- Department of Chemical and Biomolecular Engineering Clemson University Clemson South Carolina USA
| | - Antonio Faraone
- Center for Neutron Research National Institute of Standards and Technology Gaithersburg Maryland USA
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6
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Liang S, Feng F, Jiang Z, Wang B, Sun H, Lu G, Li J, Liu Z. In situ mechanical reinforcement of polyimine vitrimer via bioinspired crosslink mineralization. J Appl Polym Sci 2022. [DOI: 10.1002/app.51479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Song Liang
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering Jilin University Changchun PR China
| | - Fan Feng
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering Jilin University Changchun PR China
| | - Zhengshun Jiang
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering Jilin University Changchun PR China
| | - Bingdi Wang
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering Jilin University Changchun PR China
| | - Hang Sun
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering Jilin University Changchun PR China
| | - Guolong Lu
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering Jilin University Changchun PR China
| | - Jiayi Li
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering Jilin University Changchun PR China
| | - Zhenning Liu
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering Jilin University Changchun PR China
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7
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Sui Y, Cui Y, Meng X, Zhou Q. Research progress on the correlation between properties of nanoparticles and their dispersion states in polymer matrix. J Appl Polym Sci 2021. [DOI: 10.1002/app.52096] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yang Sui
- Department of Materials Science and Engineering New Energy and Material college, China University of Petroleum‐Beijing Beijing China
- Beijing Key Laboratory of Failure, Corrosion, and Protection of Oil/Gas Facilities China University of Petroleum‐Beijing Beijing China
| | - Yi Cui
- Department of Materials Science and Engineering New Energy and Material college, China University of Petroleum‐Beijing Beijing China
- Beijing Key Laboratory of Failure, Corrosion, and Protection of Oil/Gas Facilities China University of Petroleum‐Beijing Beijing China
| | - Xiaoyu Meng
- Department of Materials Science and Engineering New Energy and Material college, China University of Petroleum‐Beijing Beijing China
- Beijing Key Laboratory of Failure, Corrosion, and Protection of Oil/Gas Facilities China University of Petroleum‐Beijing Beijing China
| | - Qiong Zhou
- Department of Materials Science and Engineering New Energy and Material college, China University of Petroleum‐Beijing Beijing China
- Beijing Key Laboratory of Failure, Corrosion, and Protection of Oil/Gas Facilities China University of Petroleum‐Beijing Beijing China
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8
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Dufficy MK, Corder RD, Dennis KA, Fedkiw PS, Khan SA. Guar Gel Binders for Silicon Nanoparticle Anodes: Relating Binder Rheology to Electrode Performance. ACS APPLIED MATERIALS & INTERFACES 2021; 13:51403-51413. [PMID: 34664928 DOI: 10.1021/acsami.1c10776] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Binding agents are a critical component of Si-based anodes for lithium-ion batteries. Herein, we introduce a composite hydrogel binder consisting of carbon black (CB) and guar, which is chemically cross-linked with glutaraldehyde as a means to reinforce the electrode structure during lithiation and improve electronic conductivity. Dynamic rheological measurements are used to monitor the cross-linking reaction and show that rheology plays a significant role in binder performance. The cross-linking reaction occurs at a faster rate and produces stronger networks in the presence of CB, as evidenced from higher gel elastic modulus in guar + CB gels than guar gels alone. Silicon nanoparticle (SiNP) electrodes that use binders with low cross-link densities (trxn < 2 days) demonstrate discharge capacities ∼1200 mAh g-1 and Coulombic efficiencies >99.8% after 300 cycles at 1-C rate. Low cross-link densities likely increase the capacity of SiNP anodes because of binder-Si hydrogen-bonding interactions that accommodate volume expansions. In addition, the cross-linked binder demonstrates the potential for self-healing, as evidenced by an increased elastic modulus after the gel was mechanically fragmented, which may preserve the electrode microstructure during lithiation and increase capacity retention. The composite hydrogel with integrated conductive additives gives promise to a new type of binder for next-generation lithium-ion batteries.
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Affiliation(s)
- Martin K Dufficy
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Ria D Corder
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Kimberly A Dennis
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Peter S Fedkiw
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Saad A Khan
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
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9
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Maguire SM, Bilchak CR, Corsi JS, Welborn SS, Tsaggaris T, Ford J, Detsi E, Fakhraai Z, Composto RJ. Effect of Nanoscale Confinement on Polymer-Infiltrated Scaffold Metal Composites. ACS APPLIED MATERIALS & INTERFACES 2021; 13:44893-44903. [PMID: 34494810 DOI: 10.1021/acsami.1c12491] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Most research on polymer composites has focused on adding discrete inorganic nanofillers to a polymer matrix to impart properties not found in polymers alone. However, properties such as ion conductivity and mechanical reinforcement would be greatly improved if the composite exhibited an interconnected network of inorganic and polymer phases. Here, we fabricate bicontinuous polymer-infiltrated scaffold metal (PrISM) composites by infiltrating polymer into nanoporous gold (NPG) films. Polystyrene (PS) and poly(2-vinylpyridine) (P2VP) films are infiltrated into the ∼43 nm diameter NPG pores via capillary forces during thermal annealing above the polymer glass transition temperature (Tg). The infiltration process is characterized in situ using spectroscopic ellipsometry. PS and P2VP, which have different affinities for the metal scaffold, exhibit slower segmental dynamics compared to their bulk counterparts when confined within the nanopores, as measured through Tg. The more attractive P2VP shows a 20 °C increase in Tg relative to its bulk, while PS only shows a 6 °C increase at a comparable molecular weight. The infiltrated polymer, in turn, stabilizes the gold nanopores against temporal coarsening. The broad tunability of these polymer/metal hybrids represents a unique template for designing functional network composite structures with applications ranging from flexible electronics to fuel cell membranes.
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Affiliation(s)
- Shawn M Maguire
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Connor R Bilchak
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - John S Corsi
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Samuel S Welborn
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Theresa Tsaggaris
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Jamie Ford
- Nanoscale Characterization Facility, Singh Center for Nanotechnology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Eric Detsi
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Zahra Fakhraai
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Russell J Composto
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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10
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Doumeng M, Berthet F, Delbé K, Marsan O, Denape J, Chabert F. Effect of size, concentration, and nature of fillers on crystallinity, thermal, and mechanical properties of polyetheretherketone composites. J Appl Polym Sci 2021. [DOI: 10.1002/app.51574] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Marie Doumeng
- Laboratoire Génie de Production (LGP), INP‐ENIT University of Toulouse Tarbes France
- Institut Clément Ader (ICA), CNRS, IMT Mines Albi, INSA, ISAE‐SUPAERO, UPS University of Toulouse Albi France
| | - Florentin Berthet
- Institut Clément Ader (ICA), CNRS, IMT Mines Albi, INSA, ISAE‐SUPAERO, UPS University of Toulouse Albi France
| | - Karl Delbé
- Laboratoire Génie de Production (LGP), INP‐ENIT University of Toulouse Tarbes France
| | - Olivier Marsan
- CIRIMAT, INP‐ENSIACET University of Toulouse Toulouse France
| | - Jean Denape
- Laboratoire Génie de Production (LGP), INP‐ENIT University of Toulouse Tarbes France
| | - France Chabert
- Laboratoire Génie de Production (LGP), INP‐ENIT University of Toulouse Tarbes France
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11
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Nagaraja SM, Henning S, Ilisch S, Beiner M. Common Origin of Filler Network Related Contributions to Reinforcement and Dissipation in Rubber Composites. Polymers (Basel) 2021; 13:2534. [PMID: 34372137 PMCID: PMC8347107 DOI: 10.3390/polym13152534] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 11/18/2022] Open
Abstract
A comparative study focusing on the visco-elastic properties of two series of carbon black filled composites with natural rubber (NR) and its blends with butadiene rubber (NR-BR) as matrices is reported. Strain sweeps at different temperatures are performed. Filler network-related contributions to reinforcement (ΔG') are quantified by the classical Kraus equation while a modified Kraus equation is used to quantify different contributions to dissipation (ΔGD″, ΔGF″). Results indicate that the filler network is visco-elastic in nature and that it is causing a major part of the composite dissipation at small and intermediate strain amplitudes. The temperature dependence of filler network-related reinforcement and dissipation contributions is found to depend significantly on the rubber matrix composition. We propose that this is due to differences in the chemical composition of the glassy rubber bridges connecting filler particles since the filler network topology is seemingly not significantly influenced by the rubber matrix for a given filler content. The underlying physical picture explains effects in both dissipation and reinforcement. It predicts that these glassy rubber bridges will soften sequentially at temperatures much higher than the bulk Tg of the corresponding rubber. This is hypothetically due to rubber-filler interactions at interfaces resulting in an increased packing density in the glassy rubber related to the reduction of free volume. From a general perspective, this study provides deeper insights towards the molecular origin of reinforcement and dissipation in rubber composites.
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Affiliation(s)
- Sriharish Malebennur Nagaraja
- Fraunhofer Institut für Mikrostruktur von Werkstoffen und Systemen IMWS, Walter-Hülse-Str. 1, 06120 Halle (Saale), Germany; (S.M.N.); (S.H.)
| | - Sven Henning
- Fraunhofer Institut für Mikrostruktur von Werkstoffen und Systemen IMWS, Walter-Hülse-Str. 1, 06120 Halle (Saale), Germany; (S.M.N.); (S.H.)
| | - Sybill Ilisch
- Trinseo Deutschland GmbH, E 17, 06258 Schkopau, Germany;
| | - Mario Beiner
- Fraunhofer Institut für Mikrostruktur von Werkstoffen und Systemen IMWS, Walter-Hülse-Str. 1, 06120 Halle (Saale), Germany; (S.M.N.); (S.H.)
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12
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Ramakrishnan V, Goossens JGP, Hoeks TL, Peters GWM. Anomalous Terminal Shear Viscosity Behavior of Polycarbonate Nanocomposites Containing Grafted Nanosilica Particles. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1839. [PMID: 34361225 PMCID: PMC8308399 DOI: 10.3390/nano11071839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/07/2021] [Accepted: 07/09/2021] [Indexed: 11/19/2022]
Abstract
Viscosity controls an important issue in polymer processing. This paper reports on the terminal viscosity behavior of a polymer melt containing grafted nanosilica particles. The melt viscosity behavior of the nanocomposites was found to depend on the interaction between the polymer matrix and the nanoparticle surface. In the case of polycarbonate (PC) nanocomposites, the viscosity decreases by approximately 25% at concentrations below 0.7 vol% of nanosilica, followed by an increase at higher concentrations. Chemical analysis shows that the decrease in viscosity can be attributed to in situ grafting of PC on the nanosilica surface, leading to a lower entanglement density around the nanoparticle. The thickness of the graft layer was found to be of the order of the tube diameter, with the disentangled zone being approximately equal to the radius of gyration (Rg) polymer chain. Furthermore, it is shown that the grafting has an effect on the motion of the PC chains at all timescales. Finally, the viscosity behavior in the PC nanocomposites was found to be independent of the molar mass of PC. The PC data are compared with polystyrene nanocomposites, for which the interaction between the polymer and nanoparticles is absent. The results outlined in this paper can be utilized for applications with low shear processing conditions, e.g., rotomolding, 3D printing, and multilayer co-extrusion.
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Affiliation(s)
- Vaidyanath Ramakrishnan
- Department of Mechanical Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands;
| | - Johannes G. P. Goossens
- Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands;
| | - Theodorus L. Hoeks
- Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands;
| | - Gerrit W. M. Peters
- Department of Mechanical Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands;
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13
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Bahadur J, Das A, Kumar S, Prakash J, Sen D, Aswal VK. Polymer-mediated interaction between nanoparticles during hydration and dehydration: a small-angle X-ray scattering study. Phys Chem Chem Phys 2021; 23:14818-14829. [PMID: 34212952 DOI: 10.1039/d1cp00528f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polymer-mediated interactions such as DNA-protein binding, protein aggregation, and filler reinforcement in polymers play crucial roles in many important biological and industrial processes. In this work, we report a detailed investigation of interactions between nanoparticles in the presence of high volume fractions of an adsorbing polymer. Small-angle X-ray scattering (SAXS) revealed the existence of a stable gel-like structure in the polymer-nanoparticle dispersion, whereby anchored polymer molecules on nanoparticles acted as bridging centres, while basic interactions between nanoparticles remained repulsive. Time-resolved SAXS measurements showed that the local volume fraction of nanoparticles increased during the drying of the dispersion owing to the shrinkage of the gel-like structure. Further, nanoparticle clusters in the dehydrated composite films showed percolated networks of nanoparticles, except for 5% loading that showed a phase-separated morphology as the volume fraction of nanoparticles remained lower than the percolation threshold. A significant restructuring of nanoparticle clusters occurred upon the hydration of nanocomposite films caused by the expansion of polymer networks induced by hydration forces. Temporal evolution of the volume fraction of nanoparticles during dehydration unveiled three distinct stages similar to the logistic growth function and this was attributed to the evaporation of free, intermediate, and bound water in the different stages. A plausible mechanism was elucidated based on the spring action analogy between anchored polymer chains and nanoparticles during hydration and dehydration processes.
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Affiliation(s)
- Jitendra Bahadur
- Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India. and Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400094, India
| | - Avik Das
- Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India. and Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400094, India
| | - Sugam Kumar
- Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India.
| | - Jyoti Prakash
- Glass and Advanced Ceramic Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Debasis Sen
- Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India. and Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400094, India
| | - V K Aswal
- Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India. and Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400094, India
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14
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Shahemi NH, Liza S, Sawae Y, Morita T, Fukuda K, Yaakob Y. The relations between wear behavior and basic material properties of graphene‐based materials reinforced ultrahigh molecular weight polyethylene. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5428] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Nur Hidayah Shahemi
- TriPreM i‐Kohza, Department of Mechanical Precision Engineering Malaysia‐Japan International Institute Technology, Universiti Teknologi Malaysia Kuala Lumpur Malaysia
| | - Shahira Liza
- TriPreM i‐Kohza, Department of Mechanical Precision Engineering Malaysia‐Japan International Institute Technology, Universiti Teknologi Malaysia Kuala Lumpur Malaysia
| | - Yoshinori Sawae
- Machine Elements and Design Engineering Laboratory, Department of Mechanical Engineering, Faculty of Engineering Kyushu University Fukuoka Japan
| | - Takehiro Morita
- Machine Elements and Design Engineering Laboratory, Department of Mechanical Engineering, Faculty of Engineering Kyushu University Fukuoka Japan
| | - Kanao Fukuda
- TriPreM i‐Kohza, Department of Mechanical Precision Engineering Malaysia‐Japan International Institute Technology, Universiti Teknologi Malaysia Kuala Lumpur Malaysia
| | - Yazid Yaakob
- Department of Physics, Faculty of Science Universiti Putra Malaysia Serdang Malaysia
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15
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Venkatesh RB, Manohar N, Qiang Y, Wang H, Tran HH, Kim BQ, Neuman A, Ren T, Fakhraai Z, Riggleman RA, Stebe KJ, Turner K, Lee D. Polymer-Infiltrated Nanoparticle Films Using Capillarity-Based Techniques: Toward Multifunctional Coatings and Membranes. Annu Rev Chem Biomol Eng 2021; 12:411-437. [PMID: 34097843 DOI: 10.1146/annurev-chembioeng-101220-093836] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Polymer-infiltrated nanoparticle films (PINFs) are a new class of nanocomposites that offer synergistic properties and functionality derived from unusually high fractions of nanomaterials. Recently, two versatile techniques,capillary rise infiltration (CaRI) and solvent-driven infiltration of polymer (SIP), have been introduced that exploit capillary forces in films of densely packed nanoparticles. In CaRI, a highly loaded PINF is produced by thermally induced wicking of polymer melt into the nanoparticle packing pores. In SIP, exposure of a polymer-nanoparticle bilayer to solvent vapor atmosphere induces capillary condensation of solvent in the pores of nanoparticle packing, leading to infiltration of polymer into the solvent-filled pores. CaRI/SIP PINFs show superior properties compared with polymer nanocomposite films made using traditional methods, including superb mechanical properties, thermal stability, heat transfer, and optical properties. This review discusses fundamental aspects of the infiltration process and highlights potential applications in separations, structural coatings, and polymer upcycling-a process to convert polymer wastes into useful chemicals.
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Affiliation(s)
- R Bharath Venkatesh
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA; , , , , , ,
| | - Neha Manohar
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA; , , , , , ,
| | - Yiwei Qiang
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA;
| | - Haonan Wang
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA; ,
| | - Hong Huy Tran
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA; , , , , , , .,Université Grenoble Alpes, CNRS, Grenoble INP (Institute of Engineering, Université Grenoble Alpes), LMGP, 38000 Grenoble, France;
| | - Baekmin Q Kim
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA; , , , , , , .,Department of Chemical and Biomolecular Engineering and KAIST Institute for the NanoCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea;
| | - Anastasia Neuman
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA; , , , , , ,
| | - Tian Ren
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA; , , , , , ,
| | - Zahra Fakhraai
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA; ,
| | - Robert A Riggleman
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA; , , , , , ,
| | - Kathleen J Stebe
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA; , , , , , ,
| | - Kevin Turner
- Department of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA;
| | - Daeyeon Lee
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA; , , , , , ,
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16
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Sattar MA. Interface Structure and Dynamics in Polymer‐Nanoparticle Hybrids: A Review on Molecular Mechanisms Underlying the Improved Interfaces. ChemistrySelect 2021. [DOI: 10.1002/slct.202100831] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Mohammad Abdul Sattar
- R&D Centre MRF Limited Chennai 600019 India
- Colloid and Interface Chemistry Laboratory Department of Chemistry Indian Institute of Technology Madras Chennai 600036 India
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17
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Tawade BV, Apata IE, Pradhan N, Karim A, Raghavan D. Recent Advances in the Synthesis of Polymer-Grafted Low-K and High-K Nanoparticles for Dielectric and Electronic Applications. Molecules 2021; 26:2942. [PMID: 34063362 PMCID: PMC8157189 DOI: 10.3390/molecules26102942] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 05/07/2021] [Accepted: 05/10/2021] [Indexed: 11/29/2022] Open
Abstract
The synthesis of polymer-grafted nanoparticles (PGNPs) or hairy nanoparticles (HNPs) by tethering of polymer chains to the surface of nanoparticles is an important technique to obtain nanostructured hybrid materials that have been widely used in the formulation of advanced polymer nanocomposites. Ceramic-based polymer nanocomposites integrate key attributes of polymer and ceramic nanomaterial to improve the dielectric properties such as breakdown strength, energy density and dielectric loss. This review describes the "grafting from" and "grafting to" approaches commonly adopted to graft polymer chains on NPs pertaining to nano-dielectrics. The article also covers various surface initiated controlled radical polymerization techniques, along with templated approaches for grafting of polymer chains onto SiO2, TiO2, BaTiO3, and Al2O3 nanomaterials. As a look towards applications, an outlook on high-performance polymer nanocomposite capacitors for the design of high energy density pulsed power thin-film capacitors is also presented.
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Affiliation(s)
- Bhausaheb V. Tawade
- Department of Chemistry, Howard University, Washington, DC 20059, USA; (B.V.T.); (I.E.A.)
| | - Ikeoluwa E. Apata
- Department of Chemistry, Howard University, Washington, DC 20059, USA; (B.V.T.); (I.E.A.)
| | - Nihar Pradhan
- Department of Chemistry, Physics and Atmospheric Science, Jackson State University, Jackson, MS 39217, USA;
| | - Alamgir Karim
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX 77204, USA;
| | - Dharmaraj Raghavan
- Department of Chemistry, Howard University, Washington, DC 20059, USA; (B.V.T.); (I.E.A.)
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18
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Mohd Basri MS, Liew Min Ren B, A. Talib R, Zakaria R, Kamarudin SH. Novel Mangosteen-Leaves-Based Marker Ink: Color Lightness, Viscosity, Optimized Composition, and Microstructural Analysis. Polymers (Basel) 2021; 13:polym13101581. [PMID: 34069259 PMCID: PMC8156445 DOI: 10.3390/polym13101581] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/04/2021] [Accepted: 05/07/2021] [Indexed: 11/25/2022] Open
Abstract
Dry mangosteen leaves are one of the raw materials used to produce marker ink. However, research using this free and abundant resource is rather limited. The less efficient one-factor-at-a-time (OFAT) approach was mostly used in past studies on plant-based marker ink. The use of statistical analysis and the regression coefficient model (mathematical model) was considered essential in predicting the best combination of factors in formulating mangosteen leaf-based marker ink. Ideally, ink should have maximum color lightness, minimum viscosity, and fast-drying speed. The objective of this study to study the effect of glycerol and carboxymethyl cellulose (CMC) on the color lightness and viscosity of mangosteen-leaves-based marker ink. The viscosity, color lightness, and drying properties of the ink were tested, the significant effect of glycerol and CMC (responses) on ink properties was identified and the prediction model on the optimum value of the responses was developed by using response surface methodology (RSM). The microstructure of mangosteen leaves was analyzed to study the surface morphology and cell structure during dye extraction. A low amount of glycerol used was found to increase the value of color lightness. A decrease in CMC amounts resulted in low viscosity of marker ink. The optimum formulation for the ink can be achieved when the weight percents of glycerol, benzalkonium chloride, ferrous sulphate, and CMC are set at 5, 5, 1, and 3, respectively. SEM micrographs showed the greatest amount of cell wall structure collapse on samples boiled with the lowest amount of glycerol.
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Affiliation(s)
- Mohd Salahuddin Mohd Basri
- Department of Process and Food Engineering, Faculty of Engineering, Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia; (B.L.M.R.); (R.A.T.); (R.Z.)
- Laboratory of Halal Science Research, Halal Products Research Institute, Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia
- Laboratory of Biopolymer and Derivatives, Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia
- Correspondence:
| | - Brenda Liew Min Ren
- Department of Process and Food Engineering, Faculty of Engineering, Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia; (B.L.M.R.); (R.A.T.); (R.Z.)
| | - Rosnita A. Talib
- Department of Process and Food Engineering, Faculty of Engineering, Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia; (B.L.M.R.); (R.A.T.); (R.Z.)
| | - Rabitah Zakaria
- Department of Process and Food Engineering, Faculty of Engineering, Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia; (B.L.M.R.); (R.A.T.); (R.Z.)
| | - Siti Hasnah Kamarudin
- School of Industrial Technology, Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), Shah Alam 40450, Selangor, Malaysia;
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19
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Nardelli F, Martini F, Carignani E, Rossi E, Borsacchi S, Cettolin M, Susanna A, Arimondi M, Giannini L, Geppi M, Calucci L. Glassy and Polymer Dynamics of Elastomers by 1H-Field-Cycling NMR Relaxometry: Effects of Fillers. J Phys Chem B 2021; 125:4546-4554. [PMID: 33885314 PMCID: PMC8279540 DOI: 10.1021/acs.jpcb.1c00885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 04/07/2021] [Indexed: 11/30/2022]
Abstract
1H spin-lattice relaxation rate (R1) dispersions were acquired by field-cycling (FC) NMR relaxometry between 0.01 and 35 MHz over a wide temperature range on polyisoprene rubber (IR), either unfilled or filled with different amounts of carbon black, silica, or a combination of both, and sulfur cured. By exploiting the frequency-temperature superposition principle and constructing master curves for the total FC NMR susceptibility, χ″(ω) = ωR1(ω), the correlation times for glassy dynamics, τs, were determined. Moreover, the contribution of polymer dynamics, χpol″(ω), to χ″(ω) was singled out by subtracting the contribution of glassy dynamics, χglass″(ω), well represented by the Cole-Davidson spectral density. Glassy dynamics resulted moderately modified by the presence of fillers, τs values determined for the filled rubbers being slightly different from those of the unfilled one. Polymer dynamics was affected by the presence of fillers in the Rouse regime. A change in the frequency dependence of χpol″(ω) at low frequencies was observed for all filled rubbers, more pronounced for those reinforced with silica, which suggests that the presence of the filler particles can affect chain conformations, resulting in a different Rouse mode distribution, and/or interchain interactions modulated by translational motions.
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Affiliation(s)
- Francesca Nardelli
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, via G. Moruzzi 13, 56124 Pisa, Italy
- Istituto
di Chimica dei Composti OrganoMetallici, Consiglio Nazionale delle
Ricerche, via G. Moruzzi
1, 56124 Pisa, Italy
| | - Francesca Martini
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, via G. Moruzzi 13, 56124 Pisa, Italy
- Istituto
di Chimica dei Composti OrganoMetallici, Consiglio Nazionale delle
Ricerche, via G. Moruzzi
1, 56124 Pisa, Italy
- Centro
per l’Integrazione della Strumentazione Scientifica dell’Università
di Pisa (CISUP), Lungarno
Pacinotti 43, 56126 Pisa, Italy
| | - Elisa Carignani
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, via G. Moruzzi 13, 56124 Pisa, Italy
- Istituto
di Chimica dei Composti OrganoMetallici, Consiglio Nazionale delle
Ricerche, via G. Moruzzi
1, 56124 Pisa, Italy
| | - Elena Rossi
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, via G. Moruzzi 13, 56124 Pisa, Italy
| | - Silvia Borsacchi
- Istituto
di Chimica dei Composti OrganoMetallici, Consiglio Nazionale delle
Ricerche, via G. Moruzzi
1, 56124 Pisa, Italy
- Centro
per l’Integrazione della Strumentazione Scientifica dell’Università
di Pisa (CISUP), Lungarno
Pacinotti 43, 56126 Pisa, Italy
| | | | | | | | - Luca Giannini
- Pirelli
Tyre SpA, Viale Sarca 222, 20126 Milano, Italy
| | - Marco Geppi
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, via G. Moruzzi 13, 56124 Pisa, Italy
- Istituto
di Chimica dei Composti OrganoMetallici, Consiglio Nazionale delle
Ricerche, via G. Moruzzi
1, 56124 Pisa, Italy
- Centro
per l’Integrazione della Strumentazione Scientifica dell’Università
di Pisa (CISUP), Lungarno
Pacinotti 43, 56126 Pisa, Italy
| | - Lucia Calucci
- Istituto
di Chimica dei Composti OrganoMetallici, Consiglio Nazionale delle
Ricerche, via G. Moruzzi
1, 56124 Pisa, Italy
- Centro
per l’Integrazione della Strumentazione Scientifica dell’Università
di Pisa (CISUP), Lungarno
Pacinotti 43, 56126 Pisa, Italy
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20
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Wen X, Su Y, Liu G, Li S, Müller AJ, Kumar SK, Wang D. Direct Relationship between Dispersion and Crystallization Behavior in Poly(ethylene oxide)/Poly(ethylene glycol)- g-Silica Nanocomposites. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02259] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Xiangning Wen
- Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yunlan Su
- Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guoming Liu
- Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shaofan Li
- Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Alejandro J. Müller
- POLYMAT and Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastián, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao 48009, Spain
| | - Sanat K. Kumar
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Dujin Wang
- Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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21
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Epoxy Resin Nanocomposites: The Influence of Interface Modification on the Dispersion Structure—A Small-Angle-X-ray-Scattering Study. SURFACES 2020. [DOI: 10.3390/surfaces3040044] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The surface functionalization of inorganic nanoparticles is an important tool for the production of homogeneous nanocomposites. The chemical adaptation of the nano-filler surface can lead to effective weak to strong interactions between the fillers and the organic matrix. Here we present a detailed systematic study of different surface-functionalized particles in combination with a SAXS method for the systematic investigation of the interface interaction in the development of epoxy nanocomposites. We investigated the effect of surface modification of spherical SiO2 nanoparticles with 9 nm and 72 nm diameter and crystalline ZrO2 nanoparticles with 22 nm diameter on the homogeneous distribution of the fillers in diethylenetriamine (DETA) cured bisphenol-F-diglycidylether epoxy resin nanocomposites. Unmodified nanoparticles were compared with surface-modified oxides having diethylene glycol monomethyl ethers (DEG), 1,2-diols, or epoxy groups attached to the surface. The influence of surface modification on dispersion quality was investigated by transmission electron microscopy (TEM) and small angle X-ray scattering (SAXS) for inorganic filler contents of 3, 5 and 10 wt%. It was shown that the dispersion quality can be optimized by varying the coupling agent end group to obtain homogeneous and transparent nanomaterials. UV/VIS measurements confirmed the transparency/translucency of the obtained materials. The relationship between particle–matrix interaction and particle–particle interaction plays a decisive role in homogeneity and is controlled by the surface groups as well as by the type, size, and morphology of the nanoparticles themselves.
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22
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Xiong Y, Shen S, Kang M, Wang Z, Lu A. Effect of fluorescence labeling on mechanical properties of silica filled silicone rubber. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122904] [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]
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23
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Buitrago CF, Pressly JF, Yang AS, Gordon PA, Riggleman RA, Natarajan B, Winey KI. Creep attenuation in glassy polymer nanocomposites with variable polymer-nanoparticle interactions. SOFT MATTER 2020; 16:8912-8924. [PMID: 32895688 DOI: 10.1039/d0sm01247e] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The use of nanoparticle reinforced polymer matrices in continuous fiber composites for infrastructure applications requires a comprehensive understanding of viscoelastic creep. Critical parameters affecting the mechanical reinforcement offered by nanoparticles include nanoparticle size and concentration, as well as the interaction between the nanoparticle surface and polymer matrix. Here, we study the viscoelastic creep of nanocomposite systems comprised of glassy thermoplastic polymers and spherical silica nanoparticles of varying sizes and surface functionalization using a dynamic mechanical analysis (DMA) accelerated testing methodology. Significant differences in the nanoparticle dispersions in these nanocomposites were observed via transmission electron microscopy (TEM) and small-angle X-ray scattering (SAXS) and are attributed to differences in the polymer-polymer and polymer-particle interaction strengths. The DMA measurements indicate a decrease in compliance at short times with increased nanoparticle loading that is largely independent of nanoparticle dispersion morphology and polymer-particle interaction strength. Conversely, long term creep behavior shows a much stronger dependence on these parameters with the creep onset time increasing by up to three orders of magnitude. For similar nanoparticle loadings, the time to critical deformation in systems with well-distributed, networked nanoparticle morphologies was larger by an order of magnitude compared to systems exhibiting strong nanoparticle aggregation. The networked systems delayed the time to critical deformation by three orders of magnitude over that of neat polymer. The increase in time to critical deformation is also greater in composites with smaller nanoparticles at similar loadings, which we attribute to the development of percolated nanoparticle networks. These results demonstrate the significant effects polymer-particle interactions and dispersion morphologies can have on the long-term creep compliance of thermoplastic nanocomposites.
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Affiliation(s)
- C Francisco Buitrago
- Department of Materials Science & Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA.
| | - James F Pressly
- Department of Materials Science & Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA.
| | - Anita S Yang
- Department of Chemical & Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Peter A Gordon
- ExxonMobil Research and Engineering Company, Annandale, NJ 08801, USA.
| | - Robert A Riggleman
- Department of Chemical & Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Bharath Natarajan
- ExxonMobil Research and Engineering Company, Annandale, NJ 08801, USA.
| | - Karen I Winey
- Department of Materials Science & Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA. and Department of Chemical & Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA
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24
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Zarybnicka K, Ondreas F, Lepcio P, Kalina M, Zboncak M, Jancar J. Thermodynamic Parameters Controlling Nanoparticle Spatial Packing in Polymer Solutions. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00698] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Klara Zarybnicka
- Central European Institute of Technology, Brno University of Technology, Purkynova 656/123, Brno 612 00, Czech Republic
| | - Frantisek Ondreas
- Central European Institute of Technology, Brno University of Technology, Purkynova 656/123, Brno 612 00, Czech Republic
| | - Petr Lepcio
- Central European Institute of Technology, Brno University of Technology, Purkynova 656/123, Brno 612 00, Czech Republic
| | - Michal Kalina
- Faculty of Chemistry, Brno University of Technology, Purkynova 464/118, Brno 612 00, Czech Republic
| | - Marek Zboncak
- Central European Institute of Technology, Brno University of Technology, Purkynova 656/123, Brno 612 00, Czech Republic
| | - Josef Jancar
- Central European Institute of Technology, Brno University of Technology, Purkynova 656/123, Brno 612 00, Czech Republic
- Faculty of Chemistry, Brno University of Technology, Purkynova 464/118, Brno 612 00, Czech Republic
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25
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Musino D, Oberdisse J, Sztucki M, Alegria A, Genix AC. Partition of Coating Agents between Nanoparticle Interfaces and the Polymer in Nanocomposites. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01506] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dafne Musino
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, F-34095 Montpellier, France
| | - Julian Oberdisse
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, F-34095 Montpellier, France
| | - Michael Sztucki
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS 40220, 38043 Grenoble Cedex 9, France
| | - Angel Alegria
- Departamento de Fisica de Materiales (UPV/EHU) and Materials Physics Center (CSIC-UPV/EHU), Paseo Manuel Lardizábal 5, 20018 San Sebastian, Spain
| | - Anne-Caroline Genix
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, F-34095 Montpellier, France
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26
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Laurens J, Jolly J, Ovarlez G, Fay H, Chaussée T, Sotta P. Competitive Adsorption between a Polymer and Solvents onto Silica. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:7669-7680. [PMID: 32551663 DOI: 10.1021/acs.langmuir.0c01312] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In polymer nanocomposites, particle-polymer interactions play a key role both in the processing and in the final properties of the obtained materials. Specifically, for silica, because of the surface polarity, surface modification is commonly used to improve the compatibility with apolar polymer matrices in order to prevent agglomeration. In this work, a new way to investigate the polymer-silica affinity and determine dispersibility parameters (HDP) of silica particles in the 3D Hansen space using a solvent approach is proposed. These parameters are estimated from the assessment of the stability of suspensions in a set of organic solvents. Based on the respective locations of the solvent, polymer, and silica representative points in the 3D Hansen space, the adsorption of a given polymer in solution in a given solvent can be predicted. This is shown with the industrial precipitated silica Zeosil 1165MP in combination with polystyrene and polybutadiene. It is shown that silanization of the silica particles decreases the adsorption of polystyrene, even though because of this surface treatment, silica comes closer to polystyrene in the Hansen space. This counter-intuitive effect is rationalized based on the consideration of an adsorption parameter χS computed from the relative locations of the solvent, polymer, and particles in the 3D Hansen space. Basically, this parameter is related to the respective distances of the solvent and polymer representative points to that of the particle in the Hansen space.
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Affiliation(s)
- Julien Laurens
- LOF, University of Bordeaux, CNRS, Solvay, UMR 5258, 33608 Pessac, France
| | - Julien Jolly
- LOF, University of Bordeaux, CNRS, Solvay, UMR 5258, 33608 Pessac, France
| | - Guillaume Ovarlez
- LOF, University of Bordeaux, CNRS, Solvay, UMR 5258, 33608 Pessac, France
| | - Hélène Fay
- LOF, University of Bordeaux, CNRS, Solvay, UMR 5258, 33608 Pessac, France
| | - Thomas Chaussée
- Solvay Silica, 15 rue Pierre Pays, 69660 Collonges au Mont dOr, France
| | - Paul Sotta
- Laboratoire Polymères et Matériaux Avancés, CNRS, Solvay, UMR 5268, 87 avenue des Frères Perret, 69192 Saint Fons, Cedex, France
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27
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Musino D, Oberdisse J, Farago B, Alegria A, Genix AC. Resolving Segmental Polymer Dynamics in Nanocomposites by Incoherent Neutron Spin-Echo Spectroscopy. ACS Macro Lett 2020; 9:910-916. [PMID: 35648525 DOI: 10.1021/acsmacrolett.0c00369] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The segmental dynamics of styrene-butadiene nanocomposites with embedded silica nanoparticles (NPs, ca. 20 vol. %) has been studied by broadband dielectric (BDS) and neutron spin-echo spectroscopy (NSE). It is shown by BDS that overlapping contributions only allow us to conclude on a range of distributions of relaxation times in simplified industrial nanocomposites formed with highly polydisperse NPs. For comparison, structurally similar but less aggregated colloidal nanocomposites have a well-defined distribution of relaxation times due to the reduced influence of interfacial polarization processes. This distribution is widened with respect to the neat polymer, without change in the position of the maximum and at most a small slowing down visible in the average time. We then demonstrate that incoherent NSE can be used to resolve small modifications of segmental dynamics of the industrial samples. By carefully choosing the q-vector of the measurement, experiments with fully hydrogenated polymer give access to the self-dynamics of the polymer in the presence of silica on the scale of approximately 1 nm. Our high-resolution measurements show that the segmental motion is slightly but systematically slowed also by the presence of the industrial filler NPs.
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Affiliation(s)
- Dafne Musino
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, F-34095 Montpellier, France
| | - Julian Oberdisse
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, F-34095 Montpellier, France
| | - Bela Farago
- Institut Max von Laue-Paul Langevin (ILL), 71 Avenue des Martyrs, CS 20156, F-38042 Cedex 9 Grenoble, France
| | - Angel Alegria
- Departamento de Fisica de Materiales (UPV/EHU), Materials Physics Center (CSIC-UPV/EHU), Paseo Manuel Lardizábal 5, San Sebastian 20018, Spain
| | - Anne-Caroline Genix
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, F-34095 Montpellier, France
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28
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Senses E, Darvishi S, Tyagi MS, Faraone A. Entangled Polymer Dynamics in Attractive Nanocomposite Melts. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b02545] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Erkan Senses
- Department of Chemical and Biological Engineering, Koç University, Istanbul 34450, Turkey
| | - Saeid Darvishi
- Department of Chemical and Biological Engineering, Koç University, Istanbul 34450, Turkey
| | - Madhu Sudan Tyagi
- NIST Center for Neutron Research, Gaithersburg, Maryland 20899, United States
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742-2115 United States
| | - Antonio Faraone
- NIST Center for Neutron Research, Gaithersburg, Maryland 20899, United States
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29
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Synthesis of polyisoprene, polybutadiene and Styrene Butadiene Rubber grafted silica nanoparticles by nitroxide-mediated polymerization. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122190] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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30
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Decoupling the Contributions of ZnO and Silica in the Characterization of Industrially-Mixed Filled Rubbers by Combining Small Angle Neutron and X-Ray Scattering. Polymers (Basel) 2020; 12:polym12030502. [PMID: 32106486 PMCID: PMC7182841 DOI: 10.3390/polym12030502] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 02/17/2020] [Accepted: 02/22/2020] [Indexed: 11/17/2022] Open
Abstract
Scattering techniques with neutrons and X-rays are powerful methods for the investigation of the hierarchical structure of reinforcing fillers in rubber matrices. However, when using only X-ray scattering, the independent determination of the filler response itself sometimes remains an issue because of a strong parasitic contribution of the ZnO catalyst and activator in the vulcanization process. Microscopic characterization of filler-rubber mixtures even with only catalytic amounts of ZnO is, therefore, inevitably complex. Here, we present a study of silica aggregates dispersed in an SBR rubber in the presence of the catalyst and show that accurate partial structure factors of both components can be determined separately from the combination of the two scattering probes, neutrons, and X-rays. A unique separation of the silica filler scattering function devoid of parasitic catalyst scattering becomes possible. From the combined analysis, the catalyst contribution is determined as well and results to be prominent in the correction scheme. The experimental nano-structure of the ZnO after the mixing process as the by-product of the scattering decomposition was found also to be affected by the presence or absence of silica in the rubber mixture, correlated with the shear forces in the mixing and milling processes during sample preparation. The presented method is well suited for studies of novel dual filler systems.
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31
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Kempfer K, Devémy J, Dequidt A, Couty M, Malfreyt P. Multi-scale modeling of the polymer-filler interaction. SOFT MATTER 2020; 16:1538-1547. [PMID: 31939976 DOI: 10.1039/c9sm01959f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We report mesoscopic simulations of the interaction between a silica nanoparticle and cis-1,4-polybutadiene chains with realistic coarse-(CG) grained models. The CG models are obtained with a bottom-up Bayesian method based on trajectory matching of atomistic configurations of the system. We then investigate the structural properties of the interfacial region as a function of the grafting density and polymer chain length. We take advantage of the realistic CG models to explore the dynamics of the nanoparticle over a period of 10 microseconds. We show that the dynamics of the nanoparticle is affected by the grafting density and the polymer chain length of the grafted chains.
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Affiliation(s)
- Kevin Kempfer
- Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut de Chimie de Clermont-Ferrand, F-63000 Clermont-Ferrand, France.
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32
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Boonsomwong K, Genix AC, Chauveau E, Fromental JM, Dieudonné-George P, Sirisinha C, Oberdisse J. Rejuvenating the structure and rheological properties of silica nanocomposites based on natural rubber. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122168] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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33
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Zboncak M, Ondreas F, Uhlir V, Lepcio P, Michalicka J, Jancar J. Translation of segment scale stiffening into macroscale reinforcement in polymer nanocomposites. POLYM ENG SCI 2019. [DOI: 10.1002/pen.25317] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Marek Zboncak
- CEITEC, Brno University of Technology Brno 61200 Czech Republic
| | | | - Vojtech Uhlir
- CEITEC, Brno University of Technology Brno 61200 Czech Republic
| | - Petr Lepcio
- CEITEC, Brno University of Technology Brno 61200 Czech Republic
| | - Jan Michalicka
- CEITEC, Brno University of Technology Brno 61200 Czech Republic
| | - Josef Jancar
- CEITEC, Brno University of Technology Brno 61200 Czech Republic
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34
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Razavi M, Huang D, Liu S, Guo H, Wang SQ. Examining an Alternative Molecular Mechanism To Toughen Glassy Polymers. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01987] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Masoud Razavi
- Department of Polymer Science, University of Akron, Akron, Ohio 44325, United States
| | - Da Huang
- Department of Polymer Science, University of Akron, Akron, Ohio 44325, United States
| | - Suqi Liu
- Department of Polymer Science, University of Akron, Akron, Ohio 44325, United States
| | - Hailan Guo
- The Dow Chemical Company, Collegeville, Pennsylvania 19426, United States
| | - Shi-Qing Wang
- Department of Polymer Science, University of Akron, Akron, Ohio 44325, United States
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35
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Yang S, Akcora P. Deformation of Chemically Heterogeneous Interfacial Layers of Polymer Nanocomposites. ACS Macro Lett 2019; 8:1635-1641. [PMID: 35619398 DOI: 10.1021/acsmacrolett.9b00821] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Dynamics of entangled interfacial polymer layers around nanoparticles determine the linear rheological properties of polymer nanocomposites. In this study, the nonlinear elastic properties of nanocomposites are examined under large-amplitude oscillatory shear (LAOS) flow to reveal the effect of interfacial chemical heterogeneity on the deformation mechanism of polymer-grafted and polymer-adsorbed nanoparticle composites. Adsorbed-poly(methyl methacrylate) (PMMA) layers presented stronger interfacial stiffening and reinforcement than PMMA-grafted layers. Chemical heterogeneities of interfacial layers, provided by polymer-adsorbed and low graft density particles, deformed at smaller strains than the poly(ethylene oxide) (PEO) matrix. Interfaces of loosely bound PMMA and PEO exhibited stiffening at low strains due to the enhanced chain mixing and entanglements. These results demonstrate that chemical and dynamic heterogeneities in interfacial layers have significant importance in designing adaptive polymer nanocomposites for large shear deformation.
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Affiliation(s)
- Siyang Yang
- Department of Chemical Engineering & Materials Science, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Pinar Akcora
- Department of Chemical Engineering & Materials Science, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
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36
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Ferreira EHC, Andrade RJE, Fechine GJM. The “Superlubricity State” of Carbonaceous Fillers on Polyethylene-Based Composites in a Molten State. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01746] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Eder. H. C. Ferreira
- Mackenzie Institute for Research in Graphene and Nanotechnologies − MackGraphe, Mackenzie Presbyterian University, Rua da Consolação 896, São Paulo, SP 01302-907, Brazil
| | - Ricardo. J. E. Andrade
- Mackenzie Institute for Research in Graphene and Nanotechnologies − MackGraphe, Mackenzie Presbyterian University, Rua da Consolação 896, São Paulo, SP 01302-907, Brazil
| | - Guilhermino J. M. Fechine
- Mackenzie Institute for Research in Graphene and Nanotechnologies − MackGraphe, Mackenzie Presbyterian University, Rua da Consolação 896, São Paulo, SP 01302-907, Brazil
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37
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Chu CY, Li YC, Jang GW, Pu YC, Chen MZ, Chen PY. Qualitative Effect of the Polymerization Rate on the Nanoparticle Dispersion in Poly(methyl methacrylate)/Silica Nanocomposite Films. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00810] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Che-Yi Chu
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Yen-Cheng Li
- Material and Chemical Research Laboratories, Industrial Technology Research Institute, Hsin-Chu 31040, Taiwan
| | - Guang-Way Jang
- Material and Chemical Research Laboratories, Industrial Technology Research Institute, Hsin-Chu 31040, Taiwan
| | - Ying-Chih Pu
- Department of Materials Science, National University of Tainan, Tainan 70005, Taiwan
| | - Meng-Zhe Chen
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Pei-Yin Chen
- Material and Chemical Research Laboratories, Industrial Technology Research Institute, Hsin-Chu 31040, Taiwan
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38
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Oh SM, Abbasi M, Shin TJ, Saalwächter K, Kim SY. Initial Solvent-Driven Nonequilibrium Effect on Structure, Properties, and Dynamics of Polymer Nanocomposites. PHYSICAL REVIEW LETTERS 2019; 123:167801. [PMID: 31702348 DOI: 10.1103/physrevlett.123.167801] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Indexed: 06/10/2023]
Abstract
Unusual structures and dynamic properties found in polymer nanocomposites (PNCs) are often attributed to immobilized (adsorbed) polymers at nanoparticle-polymer interfaces, which are responsible for reducing the intrinsic incompatibility between nanoparticles and polymers in PNCs. Although tremendous effort has been made to characterize the presence of immobilized polymers, a systematic understanding of the structure and dynamics under different processing conditions is still lacking. Here, we report that the initial dispersing solvent, which is not present after producing PNCs, drives these nonequilibrium effects on polymer chain dynamics at interfaces. Employing extensive small-angle scattering, proton NMR spectroscopy, and rheometry experiments, we found that the thickness of the immobilized layer can be dependent on the initial solvent, changing the structure and the properties of the PNC significantly. In addition, we show that the outcome of the initial solvent effect becomes more effective at particle volume fractions where the immobile layers begin to interact.
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Affiliation(s)
- Sol Mi Oh
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil Ulsan 44919, Republic of Korea
| | - Mozhdeh Abbasi
- Institut für Physik-NMR, Martin-Luther-Universität Halle-Wittenberg, Betty-Heimann-Straβe 7, D-06120 Halle, Germany
| | - Tae Joo Shin
- UNIST Central Research Facilities & School of Natural Science, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil Ulsan 44919, Republic of Korea
| | - Kay Saalwächter
- Institut für Physik-NMR, Martin-Luther-Universität Halle-Wittenberg, Betty-Heimann-Straβe 7, D-06120 Halle, Germany
| | - So Youn Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil Ulsan 44919, Republic of Korea
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39
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Bonnevide M, Jimenez AM, Dhara D, Phan TN, Malicki N, Abbas ZM, Benicewicz B, Kumar SK, Couty M, Gigmes D, Jestin J. Morphologies of Polyisoprene-Grafted Silica Nanoparticles in Model Elastomers. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01479] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Marine Bonnevide
- Laboratoire Léon Brillouin, UMR 12, Université Paris-Saclay, IRAMIS/CEA Saclay, 91191 Gif-sur-Yvette Cedex, France
- Aix Marseille Univ, CNRS, Institut de Chimie Radicalaire, UMR 7273-Campus Scientifique St Jérôme, Service 542, 13397 Marseille Cedex 20, France Marseille, France
- Manufacture Française des Pneumatiques MICHELIN, Site de Ladoux, 23 Place des Carmes Déchaux, F-63 040 Clermont-Ferrand Cedex 9, France
| | - Andrew M. Jimenez
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Deboleena Dhara
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Trang N.T. Phan
- Aix Marseille Univ, CNRS, Institut de Chimie Radicalaire, UMR 7273-Campus Scientifique St Jérôme, Service 542, 13397 Marseille Cedex 20, France Marseille, France
| | - Nicolas Malicki
- Manufacture Française des Pneumatiques MICHELIN, Site de Ladoux, 23 Place des Carmes Déchaux, F-63 040 Clermont-Ferrand Cedex 9, France
| | - Zaid M. Abbas
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
- Department of Chemistry, Wasit University, Hay Al-Rabea, Kut, Wasit 52001, Iraq
| | - Brian Benicewicz
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Sanat K. Kumar
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Marc Couty
- Manufacture Française des Pneumatiques MICHELIN, Site de Ladoux, 23 Place des Carmes Déchaux, F-63 040 Clermont-Ferrand Cedex 9, France
| | - Didier Gigmes
- Aix Marseille Univ, CNRS, Institut de Chimie Radicalaire, UMR 7273-Campus Scientifique St Jérôme, Service 542, 13397 Marseille Cedex 20, France Marseille, France
| | - Jacques Jestin
- Laboratoire Léon Brillouin, UMR 12, Université Paris-Saclay, IRAMIS/CEA Saclay, 91191 Gif-sur-Yvette Cedex, France
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40
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Warasitthinon N, Genix AC, Sztucki M, Oberdisse J, Robertson CG. THE PAYNE EFFECT: PRIMARILY POLYMER-RELATED OR FILLER-RELATED PHENOMENON? RUBBER CHEMISTRY AND TECHNOLOGY 2019. [DOI: 10.5254/rct.19.80441] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
ABSTRACT
The hysteretic softening at small dynamic strains (Payne effect)—related to the rolling resistance and viscoelastic losses of tires—was studied as a function of particle size, filler volume fraction, and temperature for carbon black (CB) reinforced uncrosslinked styrene–butadiene rubber (SBR) and a paste-like material composed of CB-filled paraffin oil. The low-strain limit for dynamic storage modulus was found to be remarkably similar for CB-filled oil and the CB-filled SBR. Small-angle X-ray scattering (SAXS) measurements on the simple composites and detailed data analysis confirmed that the aggregate structures and nature of filler branching/networking of carbon black were virtually identical within oil compared to the high molecular weight polymer matrix. The combined dynamic rheology and SAXS results provide clear evidence that the deformation-induced breaking (unjamming) of the filler network—characterized by filler–filler contacts that are percolated throughout the material—is the main cause for the Payne effect. However, the polymer matrix does play a secondary role as demonstrated by a reduction in Payne effect magnitude with increasing temperature for the CB-reinforced rubber, which was not observed to a significant extent for the oil–CB system.
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Affiliation(s)
| | - Anne-Caroline Genix
- Laboratoire Charles Coulomb (L2C), University of Montpellier, CNRS, 34095 Montpellier, France
| | - Michael Sztucki
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, BP 220, F-38043, Grenoble Cedex 9, France
| | - Julian Oberdisse
- Laboratoire Charles Coulomb (L2C), University of Montpellier, CNRS, 34095 Montpellier, France
| | - Christopher G. Robertson
- Cooper Tire and Rubber Company, 701 Lima Avenue, Findlay, OH 45840
- Present address: Endurica LLC, 1219 West Main Cross Street, Findlay, OH 45840
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41
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Rajeev A, Basavaraj MG. Colloidal Particle-Induced Microstructural Transition in Cellulose/Ionic Liquid/Water Mixtures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:12428-12438. [PMID: 31461293 DOI: 10.1021/acs.langmuir.9b01457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The role of colloidal particles in enhancing the mechanical and thermal properties of liquid crystalline (LC) gels formed in microcrystalline cellulose/1-allyl-3-methylimidazolium chloride/water mixtures is experimentally investigated by means of rheology and polarized optical microscopy (POM). The overshoot in loss modulus and increase in the melting temperature of LC domains as observed in differential scanning calorimetry signal a stronger interaction of cellulose with both hydrophobic polystyrene and hydrophilic silica nanoparticles which in turn point to considerable amphiphilic nature of cellulose. The aggregation of nanoparticles observed by POM and the rheological behavior point to the development of a sample-spanning network of cellulose-nanoparticle clusters during the sol-gel transition with an increase in concentration of water. Furthermore, the LC gels obey Chambon-Winter (CW) criterion, indicating a self-similar gel network, except at very high particle loadings. Moreover, the LC domains show a temporal evolution into a space-spanning network of cellulose spherulites. The evolution process largely depends on the particle concentration, with highly loaded samples showing quicker evolution, which leads to a violation of the CW criterion. Furthermore, the temperature-induced microstructural transition (with and without shear) is also examined.
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Affiliation(s)
- Ashna Rajeev
- Polymer Engineering and Colloid Science Laboratory, Department of Chemical Engineering , Indian Institute of Technology Madras , Chennai 600036 , India
| | - Madivala G Basavaraj
- Polymer Engineering and Colloid Science Laboratory, Department of Chemical Engineering , Indian Institute of Technology Madras , Chennai 600036 , India
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42
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Nguyen HK, Sugimoto S, Konomi A, Inutsuka M, Kawaguchi D, Tanaka K. Dynamics Gradient of Polymer Chains near a Solid Interface. ACS Macro Lett 2019; 8:1006-1011. [PMID: 35619492 DOI: 10.1021/acsmacrolett.9b00351] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The relaxation dynamics of polyisoprene (PI) and nitrile butadiene rubber (NBR) chains at the SiO2 interface were directly probed as a function of distance from the SiO2 surface using time-resolved evanescent wave-induced fluorescence anisotropy, dielectric relaxation spectroscopy, and sum-frequency generation spectroscopy. We found the presence of the dynamics gradient of chains in the interfacial region with the SiO2 surface and tried to assign it to the two kinds of adsorbed chains, namely, loosely and strongly adsorbed, at the interface. The segmental relaxation of chains in the strongly adsorbed layer at the interface could be slower than that of bulk chains by more than 10 orders.
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43
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Ondreas F, Lepcio P, Zboncak M, Zarybnicka K, Govaert LE, Jancar J. Effect of Nanoparticle Organization on Molecular Mobility and Mechanical Properties of Polymer Nanocomposites. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01197] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Frantisek Ondreas
- Central European Institute of Technology, Brno University of Technology, Brno 61200, Czech Republic
| | - Petr Lepcio
- Central European Institute of Technology, Brno University of Technology, Brno 61200, Czech Republic
| | - Marek Zboncak
- Central European Institute of Technology, Brno University of Technology, Brno 61200, Czech Republic
| | - Klara Zarybnicka
- Central European Institute of Technology, Brno University of Technology, Brno 61200, Czech Republic
| | - Leon E. Govaert
- Department of Mechanical Engineering, Eindhoven University of Technology, Eindhoven NL-5600 MB, The Netherlands
| | - Josef Jancar
- Central European Institute of Technology, Brno University of Technology, Brno 61200, Czech Republic
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44
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Suresh K, Chowdhury A, Kumar SK, Kumaraswamy G. Critical Role of Processing on the Mechanical Properties of Cross-Linked Highly Loaded Nanocomposites. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00813] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Karthika Suresh
- J-101, Polymers and Advanced Materials Laboratory, Complex Fluids and Polymer Engineering, Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Pune 411008, Maharashtra, India
- Academy of Scientific and Innovative Research, (AcSIR), New Delhi 110 025, India
| | - Arindam Chowdhury
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, Maharashtra, India
| | - Sanat K. Kumar
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Guruswamy Kumaraswamy
- J-101, Polymers and Advanced Materials Laboratory, Complex Fluids and Polymer Engineering, Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Pune 411008, Maharashtra, India
- Academy of Scientific and Innovative Research, (AcSIR), New Delhi 110 025, India
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45
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Effects of Zinc-Free Processing Aids on Silica-Reinforced Tread Compounds for Green Tires. INT J POLYM SCI 2019. [DOI: 10.1155/2019/9123635] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
With the development of “green tires” in the tire industry, the conventional carbon black filler that is used in tread formulations is being replaced with silica. Generally, this requires the addition of a processing aid, containing zinc ion, which acts as a lubricant and dispersing agent. However, because zinc is a heavy metal, zinc-free processing aids (ZFAs) are required to satisfy worldwide environmental concerns. We present herein a series of catalytically synthesized ZFAs and evaluate the effects of replacing zinc ion-containing processing aids (ZCAs) on a silica tread formulation. Interestingly, replacing ZCA with ZFA in a two parts per hundred rubber (phr) by weight formulation improved both its tensile strength and elongation by as much as 31% and 20%, respectively. ZFA-rubber formulations also exhibited a twofold enhancement in fatigue properties over those of ZCA-rubber formulations. Furthermore, pneumatic tires were fabricated from our ZFA-rubber formulation and compared against tires containing ZCAs. The ZFA-rubber composite exhibited improved dry and wet braking and rolling resistance due to enhanced dispersion of silica in the rubber matrix. These results show that rubber composites prepared with ZFAs may be promising in tire engineering applications.
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46
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Lee D, Song SH. A Study of Silica Reinforced Rubber Composites with Eco-Friendly Processing Aids for Pneumatic Tires. Macromol Res 2019. [DOI: 10.1007/s13233-019-7125-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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47
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Wen X, Zhao W, Su Y, Wang D. Interfacial effects on crystallization behavior of polymer nanocomposites with polymer‐grafted nanoparticles. POLYMER CRYSTALLIZATION 2019. [DOI: 10.1002/pcr2.10066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Xiangning Wen
- Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular SciencesInstitute of Chemistry, Chinese Academy of Sciences Beijing China
- University of Chinese Academy of Sciences Beijing China
| | - Weiwei Zhao
- Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular SciencesInstitute of Chemistry, Chinese Academy of Sciences Beijing China
- University of Chinese Academy of Sciences Beijing China
| | - Yunlan Su
- Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular SciencesInstitute of Chemistry, Chinese Academy of Sciences Beijing China
- University of Chinese Academy of Sciences Beijing China
| | - Dujin Wang
- Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular SciencesInstitute of Chemistry, Chinese Academy of Sciences Beijing China
- University of Chinese Academy of Sciences Beijing China
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48
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Aminpour M, Montemagno C, Tuszynski JA. An Overview of Molecular Modeling for Drug Discovery with Specific Illustrative Examples of Applications. Molecules 2019; 24:E1693. [PMID: 31052253 PMCID: PMC6539951 DOI: 10.3390/molecules24091693] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 04/17/2019] [Accepted: 04/23/2019] [Indexed: 01/29/2023] Open
Abstract
In this paper we review the current status of high-performance computing applications in the general area of drug discovery. We provide an introduction to the methodologies applied at atomic and molecular scales, followed by three specific examples of implementation of these tools. The first example describes in silico modeling of the adsorption of small molecules to organic and inorganic surfaces, which may be applied to drug delivery issues. The second example involves DNA translocation through nanopores with major significance to DNA sequencing efforts. The final example offers an overview of computer-aided drug design, with some illustrative examples of its usefulness.
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Affiliation(s)
- Maral Aminpour
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 2R3, Canada.
- Ingenuity Lab, Edmonton, AB T6G 2R3, Canada.
- Department of Oncology, University of Alberta, Edmonton, AB T6G 1Z2, Canada.
| | - Carlo Montemagno
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 2R3, Canada.
- Ingenuity Lab, Edmonton, AB T6G 2R3, Canada.
- Southern Illinois University, Carbondale, IL 62901, USA.
| | - Jack A Tuszynski
- Department of Oncology, University of Alberta, Edmonton, AB T6G 1Z2, Canada.
- Department of Physics, University of Alberta, Edmonton, AB T6G 2E1, Canada.
- Department of Mechanical Engineering and Aerospace Engineering (DIMEAS), Politecnico di Torino, 10129 Turin, Italy.
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49
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Lee CK, Seo JG, Kim HJ, Song SH. Novel green composites from styrene butadiene rubber and palm oil derivatives for high performance tires. J Appl Polym Sci 2019. [DOI: 10.1002/app.47672] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Chung Kyeong Lee
- Division of Advanced Materials EngineeringKongju National University Gongju Chungnam 330‐717 Republic of Korea
| | - Jin Gwan Seo
- Division of Advanced Materials EngineeringKongju National University Gongju Chungnam 330‐717 Republic of Korea
| | - Hyun Jun Kim
- Division of Advanced Materials EngineeringKongju National University Gongju Chungnam 330‐717 Republic of Korea
| | - Sung Ho Song
- Division of Advanced Materials EngineeringKongju National University Gongju Chungnam 330‐717 Republic of Korea
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50
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Wang Y, Maurel G, Couty M, Detcheverry F, Merabia S. Implicit Medium Model for Fractal Aggregate Polymer Nanocomposites: Linear Viscoelastic Properties. Macromolecules 2019. [DOI: 10.1021/acs.macromol.8b02455] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yang Wang
- CNRS, Institut Lumière Matière, Univ Lyon, Université Claude Bernard Lyon 1, F-69622 Villeurbanne, France
- MFP MICHELIN 23, Place des Carmes-Déchaux, Cedex 9 63040 Clermont-Ferrand, France
| | - Gaëtan Maurel
- MFP MICHELIN 23, Place des Carmes-Déchaux, Cedex 9 63040 Clermont-Ferrand, France
| | - Marc Couty
- MFP MICHELIN 23, Place des Carmes-Déchaux, Cedex 9 63040 Clermont-Ferrand, France
| | - François Detcheverry
- CNRS, Institut Lumière Matière, Univ Lyon, Université Claude Bernard Lyon 1, F-69622 Villeurbanne, France
| | - Samy Merabia
- CNRS, Institut Lumière Matière, Univ Lyon, Université Claude Bernard Lyon 1, F-69622 Villeurbanne, France
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