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Ushakova AS, Lazutin AA, Vasilevskaya VV. Flowerlike Multipetal Structures of Nanoparticles Decorated by Amphiphilic Homopolymers. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00467] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Alexandra S. Ushakova
- A. N. Nesmeyanov Institute of Organoelement Compounds RAS, Vavilova ul., 28, Moscow 119991, Russia
| | - Alexei A. Lazutin
- A. N. Nesmeyanov Institute of Organoelement Compounds RAS, Vavilova ul., 28, Moscow 119991, Russia
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Zhang J, Piunova VA, Liu Y, Tek A, Yang Q, Frommer J, Liu GY, Sly J. Controlled Molecular Assembly via Dynamic Confinement of Solvent. J Phys Chem Lett 2018; 9:6232-6237. [PMID: 30336037 DOI: 10.1021/acs.jpclett.8b02442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Assembly from ultrasmall solution droplets follows a different dynamic from that of larger scales. Using an independently controlled microfluidic probe in an atomic force microscope, subfemtoliter aqueous droplets containing polymers produce well-defined features with dimensions as small as tens of nanometers. The initial shape of the droplet and the concentration of solute within the droplet play significant roles in the final assembly of polymers due to the ultrafast evaporation rate and spatial confinement by the small droplets. These effects are used to control the final molecular assembly in terms of feature geometry and distribution and packing of individual molecules within the features. This work introduces new means of control over molecular assembly, bringing us closer to programmable synthesis for chemistry and materials science. The outcomes pave the way for three-dimensional (3D) nanoprinting in additive manufacturing.
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Affiliation(s)
- Jiali Zhang
- Department of Chemistry , University of California , Davis , California 95616 , United States
| | - Victoria A Piunova
- IBM Almaden Research Center , 650 Harry Road , San Jose , California 95120 , United States
| | - Yang Liu
- Department of Chemistry , University of California , Davis , California 95616 , United States
| | - Andy Tek
- IBM Almaden Research Center , 650 Harry Road , San Jose , California 95120 , United States
| | - Qingbo Yang
- Department of Chemistry , University of California , Davis , California 95616 , United States
| | - Jane Frommer
- IBM Almaden Research Center , 650 Harry Road , San Jose , California 95120 , United States
| | - Gang-Yu Liu
- Department of Chemistry , University of California , Davis , California 95616 , United States
| | - Joseph Sly
- IBM Almaden Research Center , 650 Harry Road , San Jose , California 95120 , United States
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Erwin AJ, Korolovych VF, Iatridi Z, Tsitsilianis C, Ankner JF, Tsukruk VV. Tunable Compartmentalized Morphologies of Multilayered Dual Responsive Star Block Polyampholytes. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00744] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Andrew J. Erwin
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Volodymyr F. Korolovych
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Zacharoula Iatridi
- Department of Chemical Engineering, University of Patras, 26504 Patras, Greece
| | | | - John F. Ankner
- Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Vladimir V. Tsukruk
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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SANS from Salt-Free Aqueous Solutions of Hydrophilic and Highly Charged Star-Branched Polyelectrolytes. Polymers (Basel) 2016; 8:polym8060228. [PMID: 30979321 PMCID: PMC6431935 DOI: 10.3390/polym8060228] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 05/14/2016] [Accepted: 05/23/2016] [Indexed: 11/28/2022] Open
Abstract
Scattering functions of sodium sulfonated polystyrene (NaPSS) star-branched polyelectrolytes with high sulfonation degrees were measured from their salt-free aqueous solutions, using the Small Angle Neutron Scattering (SANS) technique. Whatever the concentration c, they display two maxima. The first, of abscissa q1*, is related to a position order between star cores and scales as q1* ∝ c1/3. The second, of abscissa q2*, is also observed in the scattering function of a semi-dilute solution of NaPSS linear polyelectrolytes. In the dilute regime (c < c*, non-overlapping stars), peak abscissa does not depend on concentration c and is just an intramolecular characteristic associated with the electrostatic repulsion between arms of the same star. In the semi-dilute regime, due to the star interpenetration, the scattering function – through the peak position, reflects repulsion between arms of the same star or of different stars. The c threshold between these distinct c-dependencies of q2* in the dilute and semi-dilute regimes is estimated as c*. Just as simple is the measurement of the geometrical radius R of the star obtained from the q1* value at c* through the relation 2R = 2π/q1*. By considering NaPSS stars of the same functionality with different degrees of polymerization per arm Na, we find R scaling linearly with Na, suggesting an elongated average conformation of the arms. This is in agreement with theoretical predictions and simulations. Meanwhile the value of q2* measured in the dilute regime does not allow any inhomogeneous counterion distribution inside the stars to be revealed.
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Choi I, Malak ST, Xu W, Heller WT, Tsitsilianis C, Tsukruk VV. Multicompartmental Microcapsules from Star Copolymer Micelles. Macromolecules 2013. [DOI: 10.1021/ma302483j] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Ikjun Choi
- School of Materials Science
and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
| | - Sidney T. Malak
- School of Materials Science
and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
| | - Weinan Xu
- School of Materials Science
and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
| | - William T. Heller
- Biology & Soft Matter Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Constantinos Tsitsilianis
- Department of Chemical Engineering, University of Patras, 26504 Patras, Greece, and Institute
of Chemical Engineering and High Temperature Processes (FORTH/ICE-HT)
| | - Vladimir V. Tsukruk
- School of Materials Science
and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
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Shew CY, Do C, Hong K, Liu Y, Porcar L, Smith GS, Chen WR. Conformational effect on small angle neutron scattering behavior of interacting polyelectrolyte solutions: a perspective of integral equation theory. J Chem Phys 2012; 137:024907. [PMID: 22803562 DOI: 10.1063/1.4732516] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
We present small angle neutron scattering (SANS) measurements of deuterium oxide (D(2)O) solutions of linear and star sodium poly(styrene sulfonate) (NaPSS) as a function of polyelectrolyte concentration. Emphasis is on understanding the dependence of their SANS coherent scattering cross section I(Q) on the molecular architecture of single polyelectrolyte. The key finding is that for a given concentration, star polyelectrolytes exhibit more pronounced characteristic peaks in I(Q), and the position of the first peak occurs at a smaller Q compared to their linear counterparts. Based on a model of integral equation theory, we first compare the SANS experimental I(Q) of salt-free polyelectrolyte solutions with that predicted theoretically. Having seen their satisfactory qualitative agreement, the dependence of counterion association behavior on polyelectrolyte geometry and concentration is further explored. Our predictions reveal that the ionic environment of polyelectrolyte exhibits a strong dependence on polyelectrolyte geometry at lower polyelectrolyte concentration. However, when both linear and star polyelectrolytes exceed their overlap concentrations, the spatial distribution of counterion is found to be essentially insensitive to polyelectrolyte geometry due to the steric effect.
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Affiliation(s)
- Chwen-Yang Shew
- Department of Chemistry, College of Staten Island, City University of New York, Staten Island, New York 10314, USA
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Zhulina EB, Borisov OV. Theory of Block Polymer Micelles: Recent Advances and Current Challenges. Macromolecules 2012. [DOI: 10.1021/ma300195n] [Citation(s) in RCA: 187] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- E. B. Zhulina
- Institute
of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia
| | - O. V. Borisov
- Institute
of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia
- Institut Pluridisciplinaire de Recherche sur l’Environnement
et les Matériaux, UMR 5254, UPPA CNRS, 64053 Pau, France
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Üzüm C, Makuska R, von Klitzing R. Effect of Molecular Architecture on the Polyelectrolyte Structuring under Confinement. Macromolecules 2012. [DOI: 10.1021/ma202763m] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Cagri Üzüm
- Stranski-Laboratorium, Institut
für Chemie, Technische Universität Berlin, Strasse des 17. Juni 124, D-10623 Berlin, Germany
| | - Ricardas Makuska
- Department of Polymer Chemistry, Vilnius University, LT-03225 Vilnius, Lithuania
| | - Regine von Klitzing
- Stranski-Laboratorium, Institut
für Chemie, Technische Universität Berlin, Strasse des 17. Juni 124, D-10623 Berlin, Germany
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Zhulina EB, Rubinstein M. Ionic strength dependence of polyelectrolyte brush thickness. SOFT MATTER 2012; 8:9376-9383. [PMID: 23144649 PMCID: PMC3493177 DOI: 10.1039/c2sm25863c] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Intramolecular repulsion between charged monomers imposes intrinsic tension in polyion, modifies its elasticity, and changes the dependence of polyelectrolyte brush thickness on salt concentration. We demonstrate that intrinsic polyion tension gives rise to a plateau of the brush thickness in the middle of salt dominated regime and to a subsequent steeper brush contraction with increasing salt concentration.
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Affiliation(s)
- Ekaterina B Zhulina
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia
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Tückmantel T, Lo Verso F, N. Likos C. Ground states of ultrasoft particles with attractions: a genetic algorithm approach. Mol Phys 2010. [DOI: 10.1080/00268970902873562] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Conformations and Solution Properties of Star-Branched Polyelectrolytes. SELF ORGANIZED NANOSTRUCTURES OF AMPHIPHILIC BLOCK COPOLYMERS I 2010. [DOI: 10.1007/12_2010_104] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Cerdà JJ, Sintes T, Toral R. Spherical brushes within spherical cavities: a self-consistent field and Monte Carlo study. J Chem Phys 2009; 131:134901. [PMID: 19814569 DOI: 10.1063/1.3238568] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We present an extensive numerical study on the behavior of spherical brushes confined into a spherical cavity. Self-consistent field (SCF) and off-lattice Monte Carlo (MC) techniques are used in order to determine the monomer and end-chain density profiles and the cavity pressure as a function of the brush properties. A comparison of the results obtained via SCF, MC, and the Flory theory for polymer solutions reveals SCF calculations to be a valuable alternative to MC simulations in the case of free and softly compressed brushes, while the Flory's theory accounts remarkably well for the pressure in the strongly compressed regime. In the range of high compressions, we have found the cavity pressure P to follow a scale relationship with the monomer volume fraction v, P approximately v(alpha). SCF calculations give alpha=2.15+/-0.05, whereas MC simulations lead to alpha=2.73+/-0.04. The underestimation of alpha by the SCF method is explained in terms of the inappropriate account of the monomer density correlations when a mean field approach is used.
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Affiliation(s)
- Juan J Cerdà
- Institute for Computational Physics, Universität Stuttgart, 70569 Stuttgart, Germany.
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Affiliation(s)
- Sebastian Huissmann
- Institut für Theoretische Physik II: Weiche Materie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraβe 1, D-40225 Düsseldorf, Germany
| | - Ronald Blaak
- Institut für Theoretische Physik II: Weiche Materie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraβe 1, D-40225 Düsseldorf, Germany
| | - Christos N. Likos
- Institut für Theoretische Physik II: Weiche Materie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraβe 1, D-40225 Düsseldorf, Germany
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Blencowe A, Tan JF, Goh TK, Qiao GG. Core cross-linked star polymers via controlled radical polymerisation. POLYMER 2009. [DOI: 10.1016/j.polymer.2008.09.049] [Citation(s) in RCA: 362] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Stavrouli N, Kyriazis A, Tsitsilianis C. Reversible Hydrogels from an Ampholytic A
n
(B-b-
C)
n
Heteroarm Star Block Terpolymer. MACROMOL CHEM PHYS 2008. [DOI: 10.1002/macp.200800287] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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