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Chen D, Molnar K, Kim H, Helfer CA, Kaszas G, Puskas JE, Kornfield JA, McKenna GB. Linear Viscoelastic Properties of Putative Cyclic Polymers Synthesized by Reversible Radical Recombination Polymerization (R3P). Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c00892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Dongjie Chen
- Department of Chemical Engineering, Texas Tech University, Lubbock, Texas79409, United States
| | - Kristof Molnar
- Department of Food, Agricultural and Biological Engineering, The Ohio State University, Wooster, Ohio44691, United States
- Laboratory of Nanochemistry, Department of Biophysics and Radiation Biology, Semmelweis University, Budapest1089, Hungary
| | - Hojin Kim
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California91125, United States
| | - Carin A. Helfer
- Department of Food, Agricultural and Biological Engineering, The Ohio State University, Wooster, Ohio44691, United States
| | - Gabor Kaszas
- Department of Food, Agricultural and Biological Engineering, The Ohio State University, Wooster, Ohio44691, United States
| | - Judit E. Puskas
- Department of Food, Agricultural and Biological Engineering, The Ohio State University, Wooster, Ohio44691, United States
| | - Julia A. Kornfield
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California91125, United States
| | - Gregory B. McKenna
- Department of Chemical Engineering, Texas Tech University, Lubbock, Texas79409, United States
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina27695, United States
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Morita Y, Sakamoto H, Suye SI. Characterization of protein adsorption on stretched polyurethane nanofibers prepared by electrospinning. RSC Adv 2017. [DOI: 10.1039/c7ra11942a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Proteins adsorbed on thick nanofibers (diameter = 950 nm) showed decreased activity due to large conformational changes, whereas those adsorbed on thin nanofibers (diameter = 480 nm) retained a close-to-natural shape and thus showed relatively high activity.
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Affiliation(s)
- Yuko Morita
- Fiber Technology Science
- Graduate School of Engineering
- University of Fukui
- Fukui 910-8507
- Japan
| | - Hiroaki Sakamoto
- Fiber Technology Science
- Graduate School of Engineering
- University of Fukui
- Fukui 910-8507
- Japan
| | - Shin-ichiro Suye
- Fiber Technology Science
- Graduate School of Engineering
- University of Fukui
- Fukui 910-8507
- Japan
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Shahid T, Huang Q, Oosterlinck F, Clasen C, van Ruymbeke E. Dynamic dilution exponent in monodisperse entangled polymer solutions. SOFT MATTER 2016; 13:269-282. [PMID: 27546279 DOI: 10.1039/c6sm01083k] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We study and model the linear viscoelastic properties of several entangled semi-dilute and concentrated solutions of linear chains of different molar masses and at different concentrations dissolved in their oligomers. We discuss the dilution effect of the oligomers on the entangled long chains. In particular, we investigate the influence of both concentration and molar mass on the value of the effective dynamic dilution exponent determined from the level of the storage plateau at low and intermediate frequencies. We show that the experimental results can be quantitatively explained by considering the tension re-equilibration process along the chains, in agreement with van Ruymbeke et al. (Macromol., 2014), i.e. by considering that the real dilution exponent α is always equal to 1, while larger values of the dilution exponent (1 < α < 1.3) found experimentally are attributed to the enhanced relaxation of the long chain extremities. Then we discuss the influence of the polymer concentration on the terminal relaxation time of the solutions and how this can be modelled by the enhanced contour length fluctuation process (CR-CLF). We point out that this larger dilution effect is not only a function of concentration but also depends on the molar mass of the chains. While the proposed approach successfully explains the viscoelastic properties of a large number of semi-dilute solutions of polymers in their own oligomers, important discrepancies are found for semi-dilute entangled polymers in small-molecule theta or good solvents. Possible explanations for the differences between these sample sets are proposed, based on the comparison of their viscoelastic behavior.
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Affiliation(s)
- T Shahid
- Department of Chemical Engineering, KU Leuven, 3001 Heverlee, Belgium and Bio and Soft Matter, Institute of Condensed Matter and Nano-science (IMCN), Universite Catholique de Louvain, 1348 Louvain-La-Neuve, Belgium.
| | - Q Huang
- Department of Chemical and Biochemical Engineering, The Danish Polymer Centre, 2800 Kgs. Lyngby, Denmark
| | - F Oosterlinck
- Material Science Center, DSM Research Geleen, The Netherlands
| | - C Clasen
- Department of Chemical Engineering, KU Leuven, 3001 Heverlee, Belgium
| | - E van Ruymbeke
- Bio and Soft Matter, Institute of Condensed Matter and Nano-science (IMCN), Universite Catholique de Louvain, 1348 Louvain-La-Neuve, Belgium.
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Gunasekaran S, Yoon WB. Investigation of Elastic Modulus of Xanthan and Locust Bean Gum at Different Concentrations of Mixture Using Cascade Model. J Texture Stud 2013. [DOI: 10.1111/jtxs.12040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Sundaram Gunasekaran
- Department of Biological Systems Engineering; University of Wisconsin-Madison; Madison WI
| | - Won Byong Yoon
- Department of Food Science and Biotechnology; Kangwon National University; Chuncheon 200-701 Korea
- Agriculture and Life Science Research Institute; Kangwon National University; Chuncheon 200-701 Korea
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Structure–mechanical property correlations of model siloxane elastomers with controlled network topology. POLYMER 2009. [DOI: 10.1016/j.polymer.2008.10.027] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Heo Y, Larson RG. Universal Scaling of Linear and Nonlinear Rheological Properties of Semidilute and Concentrated Polymer Solutions. Macromolecules 2008. [DOI: 10.1021/ma800521g] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Youngsuk Heo
- Macromolecular Science and Engineering Program, and Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136
| | - Ronald G. Larson
- Macromolecular Science and Engineering Program, and Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136
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Wu J, Fujii S, Kawahara S, Isono Y. Filler Effects on Temperature Dependence of Viscoelastic Properties of Filled Rubbers. ACTA ACUST UNITED AC 2007. [DOI: 10.2324/ejsm.3.41] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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9
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Boyer RF. Dynamics and thermodynamics of the liquid state (T < Tg) of amorphous polymers. J MACROMOL SCI B 2006. [DOI: 10.1080/00222348008243729] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Raymond F. Boyer
- a Michigan Molecular Institute , 1910 West St. Andrews Road Midland, Michigan, 48640
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10
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Miscibility and viscoelastic properties of acrylic polyhedral oligomeric silsesquioxane–poly(methyl methacrylate) blends. POLYMER 2005. [DOI: 10.1016/j.polymer.2005.04.001] [Citation(s) in RCA: 140] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ruths M, Johannsmann D, Rühe J, Knoll W. Repulsive Forces and Relaxation on Compression of Entangled, Polydisperse Polystyrene Brushes. Macromolecules 2000. [DOI: 10.1021/ma9920994] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marina Ruths
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
| | - Diethelm Johannsmann
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
| | - Jürgen Rühe
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
| | - Wolfgang Knoll
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
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12
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Phillies GDJ. Temporal scaling analysis: Viscoelastic properties of star polymers. J Chem Phys 1999. [DOI: 10.1063/1.480149] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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13
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Affiliation(s)
- Y.-H. Lin
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan
| | - J.-H. Juang
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan
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14
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Kitade S, Ochiai K, Ida M, Takahashi Y, Noda I. Plateau Modulus of Homogeneous Polystyrene/Poly(vinyl methyl ether) Blends. Polym J 1997. [DOI: 10.1295/polymj.29.1034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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15
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Takahashi Y, Ochiai N, Matsushita Y, Noda I. Viscoelastic Properties of Poly(2-vinylpyridine) in Bulk and Solution. Polym J 1996. [DOI: 10.1295/polymj.28.1065] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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16
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Urayama K, Kohjiya S. Crossover of the concentration dependence of swelling and elastic properties for polysiloxane networks crosslinked in solution. J Chem Phys 1996. [DOI: 10.1063/1.471018] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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17
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Stress relaxation and change in entanglement structure of polyisobutylene in large shearing deformations. POLYMER 1995. [DOI: 10.1016/0032-3861(95)99009-j] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Iwata K, Edwards SF. New model of polymer entanglement: Localized Gauss integral model. Plateau modulus GN, topological second virial coefficient Aθ2 and physical foundation of the tube model. J Chem Phys 1989. [DOI: 10.1063/1.456617] [Citation(s) in RCA: 59] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Nunes RW, Martin JR, Johnson JF. Influence of molecular weight and molecular weight distribution on mechanical properties of polymers. POLYM ENG SCI 1982. [DOI: 10.1002/pen.760220402] [Citation(s) in RCA: 246] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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22
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Isono Y, Fujimoto T, Inagaki H, Shishido M, Nagasawa M. Viscoelastic Properties of Branched Polymers. I. At the Undiluted State. Polym J 1980. [DOI: 10.1295/polymj.12.131] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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