1
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Geisler M, Plüschke L, Merna J, Lederer A. The Role of Solubility in Thermal Field-Flow Fractionation: A Revisited Theoretical Approach for Tuning the Separation of Chain Walking Polymerized Polyethylene. Anal Chem 2020; 92:14822-14829. [DOI: 10.1021/acs.analchem.0c03686] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Martin Geisler
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01162 Dresden, Germany
| | - Laura Plüschke
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01162 Dresden, Germany
| | - Jan Merna
- Department of Polymers, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Czech Republic
| | - Albena Lederer
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01162 Dresden, Germany
- Department of Chemistry and Polymer Science, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa
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2
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Ricci E, Vergadou N, Vogiatzis GG, De Angelis MG, Theodorou DN. Molecular Simulations and Mechanistic Analysis of the Effect of CO 2 Sorption on Thermodynamics, Structure, and Local Dynamics of Molten Atactic Polystyrene. Macromolecules 2020; 53:3669-3689. [PMID: 33828339 PMCID: PMC8016389 DOI: 10.1021/acs.macromol.0c00323] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 04/21/2020] [Indexed: 11/30/2022]
Abstract
A simulation strategy encompassing different scales was applied to the systematic study of the effects of CO2 uptake on the properties of atactic polystyrene (aPS) melts. The analysis accounted for the influence of temperature between 450 and 550 K, polymer molecular weights (M w) between 2100 and 31000 g/mol, and CO2 pressures up to 20 MPa on the volumetric, swelling, structural, and dynamic properties of the polymer as well as on the CO2 solubility and diffusivity by performing molecular dynamics (MD) simulations of the system in a fully atomistic representation. A hierarchical scheme was used for the generation of the higher M w polymer systems, which consisted of equilibration at a coarse-grained level of representation through efficient connectivity-altering Monte Carlo simulations, and reverse-mapping back to the atomistic representation, obtaining the configurations used for subsequent MD simulations. Sorption isotherms and associated swelling effects were determined by using an iterative procedure that incorporated a series of MD simulations in the NPT ensemble and the Widom test particle insertion method, while CO2 diffusion coefficients were extracted from long MD runs in the NVE ensemble. Solubility and diffusivity compared favorably with experimental results and with predictions of the Sanchez-Lacombe equation of state, which was reparametrized to capture the M w dependence of polymer properties with greater accuracy. Structural features of the polymer matrix were correctly reproduced by the simulations, and the effects of gas concentration and M w on structure and local dynamics were thoroughly investigated. In the presence of CO2, a significant acceleration of the segmental dynamics of the polymer occurred, more pronouncedly at low M w. The speed-up effect caused by the swelling agent was not limited to the chain ends but affected the whole chain in a similar fashion.
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Affiliation(s)
- Eleonora Ricci
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Bologna, Italy
| | - Niki Vergadou
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "Demokritos", Athens, Greece
| | - Georgios G Vogiatzis
- Department of Mechanical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Maria Grazia De Angelis
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Bologna, Italy
| | - Doros N Theodorou
- School of Chemical Engineering, National Technical University of Athens, Athens, Greece
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3
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Tzounis PN, Anogiannakis SD, Theodorou DN. General Methodology for Estimating the Stiffness of Polymer Chains from Their Chemical Constitution: A Single Unperturbed Chain Monte Carlo Algorithm. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00645] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Stefanos D. Anogiannakis
- School of Chemical Engineering, National Technical University of Athens, GR 15780 Athens, Greece
| | - Doros N. Theodorou
- School of Chemical Engineering, National Technical University of Athens, GR 15780 Athens, Greece
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4
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Mathioudakis IG, Vogiatzis GG, Tzoumanekas C, Theodorou DN. Multiscale simulations of PS-SiO2 nanocomposites: from melt to glassy state. SOFT MATTER 2016; 12:7585-7605. [PMID: 27532769 DOI: 10.1039/c6sm01536k] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The interaction energetics, molecular packing, entanglement network properties, segmental dynamics, and elastic constants of atactic polystyrene-amorphous silica nanocomposites in the molten and the glassy state are studied via molecular simulations using two interconnected levels of representation: (a) a coarse-grained one, wherein each polystyrene repeat unit is mapped onto a single "superatom" and the silica nanoparticle is viewed as a solid sphere. Equilibration at all length scales at this level is achieved via connectivity-altering Monte Carlo simulations. (b) A united-atom (UA) level, wherein the polymer chains are represented in terms of a united-atom forcefield and the silica nanoparticle is represented in terms of a simplified, fully atomistic model. Initial configurations for UA molecular dynamics (MD) simulations are obtained by reverse mapping well-equilibrated coarse-grained configurations. By analysing microcanonical UA MD trajectories, the polymer density profile is studied and the polymer is found to exhibit layering in the vicinity of the nanoparticle surface. An estimate of the enthalpy of mixing between polymer and nanoparticles, derived from the UA simulations, compares favourably against available experimental values. The dynamical behaviour of polystyrene (in neat and filled melt systems) is characterized in terms of bond orientation and dihedral angle time autocorrelation functions. At low concentration in the molten polymer matrix, silica nanoparticles are found to cause a slight deceleration of the segmental dynamics close to their surface compared to the bulk polymer. Well-equilibrated coarse-grained long-chain configurations are reduced to entanglement networks via topological analysis with the CReTA algorithm, yielding a slightly lower density of entanglements in the filled than in the neat systems. UA melt configurations are glassified by MD cooling. The elastic moduli of the resulting glassy nanocomposites are computed through an analysis of strain fluctuations in the undeformed state and through explicit mechanical deformation by MD, showing a stiffening of the polymer in the presence of nanoparticles. UA simulation results for the elastic constants are compared to continuum micromechanical calculations invoked in homogenization models of the overall mechanical behaviour of heterogeneous materials. They can be interpreted in terms of the presence of an "interphase" of approximate thickness 2 nm around the nanoparticles, with elastic constants intermediate between those of the filler and the matrix.
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Affiliation(s)
- I G Mathioudakis
- School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou Street, Zografou Campus, GR-15780 Athens, Greece.
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5
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Whitmore MD, Vavasour JD, Spiro JG, Winnik MA. On Cylindrical PS-b-PMMA in Moderate and Weak Segregation. Macromolecules 2013. [DOI: 10.1021/ma401862w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Mark D. Whitmore
- Department
of Physics and Astronomy, University of Manitoba, 186 Dysart
Road, Winnipeg, Manitoba R2M 5C6, Canada
| | - Jeffrey D. Vavasour
- Code Mystics Inc., 1500-701 West Georgia Street, Vancouver, British Columbia V7Y 1C6, Canada
| | - John G. Spiro
- Department
of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Mitchell A. Winnik
- Department
of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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6
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Karimi-Varzaneh HA, van der Vegt NFA, Müller-Plathe F, Carbone P. How Good Are Coarse-Grained Polymer Models? A Comparison for Atactic Polystyrene. Chemphyschem 2012; 13:3428-39. [DOI: 10.1002/cphc.201200111] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2012] [Revised: 05/09/2012] [Indexed: 02/02/2023]
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7
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Spiro JG, Illy N, Winnik MA, Vavasour JD, Whitmore MD. Theory of Lamellar Superstructure from a Mixture of Two Cylindrical PS–PMMA Block Copolymers. Macromolecules 2012. [DOI: 10.1021/ma202717p] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- John G. Spiro
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto,
Ontario M5S 3H6, Canada
| | - Nicolas Illy
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto,
Ontario M5S 3H6, Canada
| | - Mitchell A. Winnik
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto,
Ontario M5S 3H6, Canada
| | - Jeffrey D. Vavasour
- Department of Physics and Astronomy, University of Manitoba, 186 Dysart Road, Winnipeg,
Manitoba R2M 5C6, Canada
| | - Mark D. Whitmore
- Department of Physics and Astronomy, University of Manitoba, 186 Dysart Road, Winnipeg,
Manitoba R2M 5C6, Canada
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8
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Isotactic polypropylene/carbon nanotube composites prepared by latex technology: Electrical conductivity study. Eur Polym J 2010. [DOI: 10.1016/j.eurpolymj.2010.06.009] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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9
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Fritz D, Harmandaris VA, Kremer K, van der Vegt NFA. Coarse-Grained Polymer Melts Based on Isolated Atomistic Chains: Simulation of Polystyrene of Different Tacticities. Macromolecules 2009. [DOI: 10.1021/ma901242h] [Citation(s) in RCA: 136] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Dominik Fritz
- Max-Planck-Institut für Polymerforschung, Ackermannweg 10, 55128 Mainz, Germany
| | | | - Kurt Kremer
- Max-Planck-Institut für Polymerforschung, Ackermannweg 10, 55128 Mainz, Germany
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Vorselaars B, Lyulin AV, Michels MAJ. Deforming glassy polystyrene: Influence of pressure, thermal history, and deformation mode on yielding and hardening. J Chem Phys 2009; 130:074905. [DOI: 10.1063/1.3077859] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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11
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Irzhak VI. Relaxation properties of polymers and the physical network model. RUSSIAN CHEMICAL REVIEWS 2007. [DOI: 10.1070/rc2000v069n03abeh000554] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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12
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Xue W, Huglin MB, Liao B. Network and thermodynamic properties of hydrogels of poly[1-(3-sulfopropyl)-2-vinyl-pyridinium-betaine]. Eur Polym J 2007. [DOI: 10.1016/j.eurpolymj.2007.07.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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Spyriouni T, Tzoumanekas C, Theodorou D, Müller-Plathe F, Milano G. Coarse-Grained and Reverse-Mapped United-Atom Simulations of Long-Chain Atactic Polystyrene Melts: Structure, Thermodynamic Properties, Chain Conformation, and Entanglements. Macromolecules 2007. [DOI: 10.1021/ma0700983] [Citation(s) in RCA: 171] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Theodora Spyriouni
- Department of Materials Science and Engineering, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou Street, Zografou Campus, Athens GR 15780, Greece, Institute of Physical Chemistry, NRCPS “Demokritos”, Aghia Paraskevi Attikis, 153 10 Athens, Greece, and Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands, Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Petersenstrasse 20, D-64287
| | - Christos Tzoumanekas
- Department of Materials Science and Engineering, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou Street, Zografou Campus, Athens GR 15780, Greece, Institute of Physical Chemistry, NRCPS “Demokritos”, Aghia Paraskevi Attikis, 153 10 Athens, Greece, and Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands, Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Petersenstrasse 20, D-64287
| | - Doros Theodorou
- Department of Materials Science and Engineering, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou Street, Zografou Campus, Athens GR 15780, Greece, Institute of Physical Chemistry, NRCPS “Demokritos”, Aghia Paraskevi Attikis, 153 10 Athens, Greece, and Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands, Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Petersenstrasse 20, D-64287
| | - Florian Müller-Plathe
- Department of Materials Science and Engineering, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou Street, Zografou Campus, Athens GR 15780, Greece, Institute of Physical Chemistry, NRCPS “Demokritos”, Aghia Paraskevi Attikis, 153 10 Athens, Greece, and Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands, Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Petersenstrasse 20, D-64287
| | - Giuseppe Milano
- Department of Materials Science and Engineering, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou Street, Zografou Campus, Athens GR 15780, Greece, Institute of Physical Chemistry, NRCPS “Demokritos”, Aghia Paraskevi Attikis, 153 10 Athens, Greece, and Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands, Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Petersenstrasse 20, D-64287
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14
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Grest GS, Fetters LJ, Huang JS, Richter D. Star Polymers: Experiment, Theory, and Simulation. ADVANCES IN CHEMICAL PHYSICS 2007. [DOI: 10.1002/9780470141533.ch2] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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15
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Spiro JG, Yang J, Zhang JX, Winnik MA, Rharbi Y, Vavasour JD, Whitmore MD, Jérôme R. Experimental and Theoretical Investigation of the Lamellar Structure of a Styrene−Butyl Methacrylate Diblock Copolymer by Fluorescence Resonance Energy Transfer, Small-Angle X-ray Scattering, and Self-Consistent-Field Simulations. Macromolecules 2006. [DOI: 10.1021/ma0526037] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | - Yahya Rharbi
- Laboratoire de Rhéologie, BP53-Domaine Universitaire, 38041 Grenoble Cedex 9, France, and Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario, Canada M5S 3H6
| | | | | | - Robert Jérôme
- Center for Education and Research on Macromolecules, University of Liège, Sart-Tilman B6, 4000 Liège, Belgium
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16
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Zhu S, Edmonds WF, Hillmyer MA, Lodge TP. Synthesis and self-assembly of highly incompatible polybutadiene-poly(hexafluoropropylene oxide) diblock copolymers. ACTA ACUST UNITED AC 2005. [DOI: 10.1002/polb.20621] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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17
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Costa AC, Composto RJ, Vlcek P, Geoghegan M. Block copolymer adsorption from a homopolymer melt to an amine-terminated surface. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2005; 18:159-66. [PMID: 16247551 DOI: 10.1140/epje/i2005-10040-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2005] [Accepted: 08/12/2005] [Indexed: 05/05/2023]
Abstract
Using neutron reflectometry, the adsorption of diblock copolymers from a neutral polystyrene (PS) matrix is studied as a function of substrate type and non-adsorbing block degree of polymerization. The block copolymer is poly(deutero styrene)-block-poly(methyl methacrylate) and the substrates are silicon oxide, SiO(x), and SiO(x) functionalized with (3-aminopropyl)triethoxysilane (APTES). We have determined the equilibrium volume fraction-depth profiles for such films, and compared them with volume fraction profiles generated by self-consistent mean-field (SCMF) theory and find good agreement between the experimental and theoretical data. SCMF calculations show that the segmental interaction energy between PS matrix chains and APTES is two orders of magnitude stronger than that between PS and SiO(x).
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Affiliation(s)
- A C Costa
- Department of Materials Science and Engineering, Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, PA 19104-6272, USA
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18
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Brant P, Ruff CJ, Sun T. Effect of Tacticity on the Dilute Solution Coil Dimensions of Poly(α-olefin)s. Macromolecules 2005. [DOI: 10.1021/ma050496a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Patrick Brant
- ExxonMobil Chemical Company, Baytown Technology and Engineering Complex, Baytown, Texas 77520
| | - Charles J. Ruff
- ExxonMobil Chemical Company, Baytown Technology and Engineering Complex, Baytown, Texas 77520
| | - Thomas Sun
- ExxonMobil Chemical Company, Baytown Technology and Engineering Complex, Baytown, Texas 77520
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19
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Lee JS, Quirk RP, Foster MD. Effect of Butadiene End-Capping of Arms in a Star Polystyrene on Solution Properties, Bulk Dynamics, and Bulk Thermodynamic Interactions in Binary Blends. Macromolecules 2004. [DOI: 10.1021/ma048758g] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jae S. Lee
- Maurice Morton Institute of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - Roderic P. Quirk
- Maurice Morton Institute of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - Mark D. Foster
- Maurice Morton Institute of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
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20
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Guico RS, Narayanan S, Wang J, Shull KR. Dynamics of Polymer/Metal Nanocomposite Films at Short Times As Studied by X-ray Standing Waves. Macromolecules 2004. [DOI: 10.1021/ma0486593] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rodney S. Guico
- Experimental Facilities Division, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, and Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208
| | - Suresh Narayanan
- Experimental Facilities Division, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, and Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208
| | - Jin Wang
- Experimental Facilities Division, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, and Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208
| | - Kenneth R. Shull
- Experimental Facilities Division, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, and Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208
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21
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Davidock DA, Hillmyer MA, Lodge TP. Mapping Large Regions of Diblock Copolymer Phase Space by Selective Chemical Modification. Macromolecules 2003. [DOI: 10.1021/ma035248y] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Drew A. Davidock
- Department of Chemistry and Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455
| | - Marc A. Hillmyer
- Department of Chemistry and Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455
| | - Timothy P. Lodge
- Department of Chemistry and Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455
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22
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Rharbi Y, Zhang JX, Spiro JG, Chen L, Winnik MA, Vavasour JD, Whitmore MD, Jérôme R. An Energy Transfer Study of Homopolymer Localization in Block Copolymers. Macromolecules 2003. [DOI: 10.1021/ma020962l] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | | | | | | | | | - R. Jérôme
- Center for Education and Research on Macromolecules, University of Liège, Sart-Tilman B6, 4000 Liège, Belgium
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23
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Fetters LJ, Lohse DJ, García-Franco CA, Brant P, Richter D. Prediction of Melt State Poly(α-olefin) Rheological Properties: The Unsuspected Role of the Average Molecular Weight per Backbone Bond. Macromolecules 2002. [DOI: 10.1021/ma025659z] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | - Dieter Richter
- Research Center, Jülich Institute for Solid State Research, Jülich, Germany 52425
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Zalusky AS, Olayo-Valles R, Wolf JH, Hillmyer MA. Ordered nanoporous polymers from polystyrene-polylactide block copolymers. J Am Chem Soc 2002; 124:12761-73. [PMID: 12392423 DOI: 10.1021/ja0278584] [Citation(s) in RCA: 375] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Nanoporous polystyrene monoliths were prepared from polystyrene-polylactide (PS-PLA) block copolymers that form hexagonally packed nanocylinders of PLA in a PS matrix. A morphology diagram was developed to determine the range in composition and molecular weight over which this morphology existed. Macroscopic alignment of these materials gave anisotropic monoliths that were subjected to mild degradation conditions leading to the chemical etching of the PLA. The resulting nanoporous monoliths consisted of a polystyrene matrix containing hexagonally close-packed, oriented, and continuous nanoscopic channels (pore size was tunable through synthesis or blending) lined with chemically accessible hydroxyl functional groups. Both the precursors and the porous materials were analyzed moleculary (size-exclusion chromatography and proton nuclear magnetic resonance spectroscopy) and structurally (small-angle X-ray scattering, scanning electron microscopy, and differential scanning calorimetry). In addition, the surface area and pore size distribution of the nanoporous monoliths were characterized (N2 adsorption measurements). These nanoporous materials have remarkable potential as hosts for nanomaterial synthesis, size-selective catalyst supports, and advanced separations.
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Affiliation(s)
- Andrew S Zalusky
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis 55455-0431, USA
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25
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Martter TD, Foster MD, Ohno K, Haddleton DM. Architecture-driven thermodynamic interactions in blends of star-branched and linear poly(methyl methacrylate). ACTA ACUST UNITED AC 2002. [DOI: 10.1002/polb.10226] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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26
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Zirkel A, Gruner SM, Urban V, Thiyagarajan P. Small-Angle Neutron Scattering Investigation of the Q-Dependence of the Flory−Huggins Interaction Parameter in a Binary Polymer Blend. Macromolecules 2002. [DOI: 10.1021/ma010576o] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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27
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Krishnamoorti R, Graessley WW, Zirkel A, Richter D, Hadjichristidis N, Fetters LJ, Lohse DJ. Melt-state polymer chain dimensions as a function of temperature. ACTA ACUST UNITED AC 2002. [DOI: 10.1002/polb.10231] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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28
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Ren Y, Lodge TP, Hillmyer MA. Effect of Selective Perfluoroalkylation on the Segregation Strength of Polystyrene−1,2-Polybutadiene Block Copolymers. Macromolecules 2002. [DOI: 10.1021/ma011958x] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yu Ren
- Department of Chemistry, 207 Pleasant St. SE, University of Minnesota, Minneapolis, Minnesota 55455-0431
| | - Timothy P. Lodge
- Department of Chemistry, 207 Pleasant St. SE, University of Minnesota, Minneapolis, Minnesota 55455-0431
| | - Marc A. Hillmyer
- Department of Chemistry, 207 Pleasant St. SE, University of Minnesota, Minneapolis, Minnesota 55455-0431
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29
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Affiliation(s)
- William W. Graessley
- Department of Chemical Engineering, Princeton University, Princeton, New Jersey 08544
| | - Lewis J. Fetters
- Institut für Festkörperforschung, Forschungszentrum Jülich, D-52425 Jülich, Germany
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Greenberg CC, Foster MD, Turner CM, Corona-Galvan S, Cloutet E, Quirk RP, Butler PD, Hawker C. Effective interaction parameter between branched and linear polystyrene. ACTA ACUST UNITED AC 2001. [DOI: 10.1002/polb.10017] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Ren Y, Lodge TP, Hillmyer MA. Synthesis, Characterization, and Interaction Strengths of Difluorocarbene-Modified Polystyrene−Polyisoprene Block Copolymers. Macromolecules 2000. [DOI: 10.1021/ma9917085] [Citation(s) in RCA: 67] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yu Ren
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455-0431
| | - Timothy P. Lodge
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455-0431
| | - Marc A. Hillmyer
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455-0431
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32
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Mathur D, Hariharan R, Nauman E. A scaling model for the prediction of micellization of diblocks in polymer melts. POLYMER 1999. [DOI: 10.1016/s0032-3861(98)00827-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Fetters LJ, Lohse DJ, Milner ST, Graessley WW. Packing Length Influence in Linear Polymer Melts on the Entanglement, Critical, and Reptation Molecular Weights. Macromolecules 1999. [DOI: 10.1021/ma990620o] [Citation(s) in RCA: 376] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lewis J. Fetters
- Exxon Research and Engineering Company, Corporate Research Laboratories, Clinton Township, Route 22 East, Annandale, New Jersey 08801-0998
| | - David J. Lohse
- Exxon Research and Engineering Company, Corporate Research Laboratories, Clinton Township, Route 22 East, Annandale, New Jersey 08801-0998
| | - Scott T. Milner
- Exxon Research and Engineering Company, Corporate Research Laboratories, Clinton Township, Route 22 East, Annandale, New Jersey 08801-0998
| | - William W. Graessley
- Department of Chemical Engineering, Princeton University, Princeton, New Jersey 08544-5263
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34
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Laurer JH, Hajduk DA, Dreckötter S, Smith SD, Spontak RJ. Bicontinuous Morphologies in Homologous Multiblock Copolymers and Their Homopolymer Blends. Macromolecules 1998. [DOI: 10.1021/ma9807872] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jonathan H. Laurer
- Departments of Materials Science & Engineering and Chemical Engineering, North Carolina State University, Raleigh, North Carolina 27695, Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, and Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239
| | - Damian A. Hajduk
- Departments of Materials Science & Engineering and Chemical Engineering, North Carolina State University, Raleigh, North Carolina 27695, Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, and Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239
| | - Stefan Dreckötter
- Departments of Materials Science & Engineering and Chemical Engineering, North Carolina State University, Raleigh, North Carolina 27695, Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, and Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239
| | - Steven D. Smith
- Departments of Materials Science & Engineering and Chemical Engineering, North Carolina State University, Raleigh, North Carolina 27695, Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, and Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239
| | - Richard J. Spontak
- Departments of Materials Science & Engineering and Chemical Engineering, North Carolina State University, Raleigh, North Carolina 27695, Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, and Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239
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36
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Landry MR. Scaling Behavior of Swollen Chains in Bimodal Molecular Weight Blends. Macromolecules 1997. [DOI: 10.1021/ma970270a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Michael R. Landry
- Imaging Research and Advanced Development, Eastman Kodak Company, Rochester, New York 14650-2132
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37
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Fetters LJ, Graessley WW, Krishnamoorti R, Lohse DJ. Melt Chain Dimensions of Poly(ethylene−1-butene) Copolymers via Small Angle Neutron Scattering. Macromolecules 1997. [DOI: 10.1021/ma961408c] [Citation(s) in RCA: 74] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- L. J. Fetters
- Exxon Research and Engineering Co., Corporate Research Laboratories, Annandale, New Jersey 08801, and Department of Chemical Engineering, Princeton University, Princeton, New Jersey 08544
| | - W. W. Graessley
- Exxon Research and Engineering Co., Corporate Research Laboratories, Annandale, New Jersey 08801, and Department of Chemical Engineering, Princeton University, Princeton, New Jersey 08544
| | - R. Krishnamoorti
- Exxon Research and Engineering Co., Corporate Research Laboratories, Annandale, New Jersey 08801, and Department of Chemical Engineering, Princeton University, Princeton, New Jersey 08544
| | - D. J. Lohse
- Exxon Research and Engineering Co., Corporate Research Laboratories, Annandale, New Jersey 08801, and Department of Chemical Engineering, Princeton University, Princeton, New Jersey 08544
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38
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Laurer JH, Hajduk DA, Fung JC, Sedat JW, Smith SD, Gruner SM, Agard DA, Spontak RJ. Microstructural Analysis of a Cubic Bicontinuous Morphology in a Neat SIS Triblock Copolymer. Macromolecules 1997. [DOI: 10.1021/ma970449l] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jonathan H. Laurer
- Department of Materials Science & Engineering, North Carolina State University, Raleigh, North Carolina 27695, Department of Physics, Princeton University, Princeton, New Jersey 08544, Graduate Group in Biophysics, University of California, San Francisco, California 94143, Department of Biochemistry and Biophysics, University of California, San Francisco, California 94143, Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239, and Howard Hughes Medical Institute, University of
| | - Damian A. Hajduk
- Department of Materials Science & Engineering, North Carolina State University, Raleigh, North Carolina 27695, Department of Physics, Princeton University, Princeton, New Jersey 08544, Graduate Group in Biophysics, University of California, San Francisco, California 94143, Department of Biochemistry and Biophysics, University of California, San Francisco, California 94143, Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239, and Howard Hughes Medical Institute, University of
| | - Jennifer C. Fung
- Department of Materials Science & Engineering, North Carolina State University, Raleigh, North Carolina 27695, Department of Physics, Princeton University, Princeton, New Jersey 08544, Graduate Group in Biophysics, University of California, San Francisco, California 94143, Department of Biochemistry and Biophysics, University of California, San Francisco, California 94143, Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239, and Howard Hughes Medical Institute, University of
| | - John W. Sedat
- Department of Materials Science & Engineering, North Carolina State University, Raleigh, North Carolina 27695, Department of Physics, Princeton University, Princeton, New Jersey 08544, Graduate Group in Biophysics, University of California, San Francisco, California 94143, Department of Biochemistry and Biophysics, University of California, San Francisco, California 94143, Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239, and Howard Hughes Medical Institute, University of
| | - Steven D. Smith
- Department of Materials Science & Engineering, North Carolina State University, Raleigh, North Carolina 27695, Department of Physics, Princeton University, Princeton, New Jersey 08544, Graduate Group in Biophysics, University of California, San Francisco, California 94143, Department of Biochemistry and Biophysics, University of California, San Francisco, California 94143, Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239, and Howard Hughes Medical Institute, University of
| | - Sol M. Gruner
- Department of Materials Science & Engineering, North Carolina State University, Raleigh, North Carolina 27695, Department of Physics, Princeton University, Princeton, New Jersey 08544, Graduate Group in Biophysics, University of California, San Francisco, California 94143, Department of Biochemistry and Biophysics, University of California, San Francisco, California 94143, Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239, and Howard Hughes Medical Institute, University of
| | - David A. Agard
- Department of Materials Science & Engineering, North Carolina State University, Raleigh, North Carolina 27695, Department of Physics, Princeton University, Princeton, New Jersey 08544, Graduate Group in Biophysics, University of California, San Francisco, California 94143, Department of Biochemistry and Biophysics, University of California, San Francisco, California 94143, Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239, and Howard Hughes Medical Institute, University of
| | - Richard J. Spontak
- Department of Materials Science & Engineering, North Carolina State University, Raleigh, North Carolina 27695, Department of Physics, Princeton University, Princeton, New Jersey 08544, Graduate Group in Biophysics, University of California, San Francisco, California 94143, Department of Biochemistry and Biophysics, University of California, San Francisco, California 94143, Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239, and Howard Hughes Medical Institute, University of
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Ab Initio Calculations of Conformational Effects on 13C NMR Spectra of Amorphous Polymers. ACTA ACUST UNITED AC 1997. [DOI: 10.1007/978-3-642-60644-1_1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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Spontak RJ, Fung JC, Braunfeld MB, Sedat JW, Agard DA, Kane L, Smith SD, Satkowski MM, Ashraf A, Hajduk DA, Gruner SM. Phase Behavior of Ordered Diblock Copolymer Blends: Effect of Compositional Heterogeneity. Macromolecules 1996. [DOI: 10.1021/ma9515689] [Citation(s) in RCA: 121] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Richard J. Spontak
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, Graduate Group in Biophysics, University of California, San Francisco, California 94143, Department of Biochemistry and Biophysics and the Howard Hughes Medical Institute, University of California, San Francisco, California 94143, Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239, and Department of Physics, Princeton University, Princeton, New Jersey 08544
| | - Jennifer C. Fung
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, Graduate Group in Biophysics, University of California, San Francisco, California 94143, Department of Biochemistry and Biophysics and the Howard Hughes Medical Institute, University of California, San Francisco, California 94143, Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239, and Department of Physics, Princeton University, Princeton, New Jersey 08544
| | - Michael B. Braunfeld
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, Graduate Group in Biophysics, University of California, San Francisco, California 94143, Department of Biochemistry and Biophysics and the Howard Hughes Medical Institute, University of California, San Francisco, California 94143, Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239, and Department of Physics, Princeton University, Princeton, New Jersey 08544
| | - John W. Sedat
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, Graduate Group in Biophysics, University of California, San Francisco, California 94143, Department of Biochemistry and Biophysics and the Howard Hughes Medical Institute, University of California, San Francisco, California 94143, Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239, and Department of Physics, Princeton University, Princeton, New Jersey 08544
| | - David A. Agard
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, Graduate Group in Biophysics, University of California, San Francisco, California 94143, Department of Biochemistry and Biophysics and the Howard Hughes Medical Institute, University of California, San Francisco, California 94143, Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239, and Department of Physics, Princeton University, Princeton, New Jersey 08544
| | - Lisaleigh Kane
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, Graduate Group in Biophysics, University of California, San Francisco, California 94143, Department of Biochemistry and Biophysics and the Howard Hughes Medical Institute, University of California, San Francisco, California 94143, Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239, and Department of Physics, Princeton University, Princeton, New Jersey 08544
| | - Steven D. Smith
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, Graduate Group in Biophysics, University of California, San Francisco, California 94143, Department of Biochemistry and Biophysics and the Howard Hughes Medical Institute, University of California, San Francisco, California 94143, Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239, and Department of Physics, Princeton University, Princeton, New Jersey 08544
| | - Michael M. Satkowski
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, Graduate Group in Biophysics, University of California, San Francisco, California 94143, Department of Biochemistry and Biophysics and the Howard Hughes Medical Institute, University of California, San Francisco, California 94143, Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239, and Department of Physics, Princeton University, Princeton, New Jersey 08544
| | - Arman Ashraf
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, Graduate Group in Biophysics, University of California, San Francisco, California 94143, Department of Biochemistry and Biophysics and the Howard Hughes Medical Institute, University of California, San Francisco, California 94143, Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239, and Department of Physics, Princeton University, Princeton, New Jersey 08544
| | - Damian A. Hajduk
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, Graduate Group in Biophysics, University of California, San Francisco, California 94143, Department of Biochemistry and Biophysics and the Howard Hughes Medical Institute, University of California, San Francisco, California 94143, Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239, and Department of Physics, Princeton University, Princeton, New Jersey 08544
| | - Sol M. Gruner
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, Graduate Group in Biophysics, University of California, San Francisco, California 94143, Department of Biochemistry and Biophysics and the Howard Hughes Medical Institute, University of California, San Francisco, California 94143, Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239, and Department of Physics, Princeton University, Princeton, New Jersey 08544
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41
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Briber RM, Bauer BJ, Hammouda B. Small angle neutron scattering from polymer blends in the dilute concentration limit. J Chem Phys 1994. [DOI: 10.1063/1.467631] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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