1
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Kikuchi M, Hara M, Nagano S, Ebe H, Matsui J. Order-Order Transition in Statistical Copolymer Thin Film Induced by LCST-Type Behavior. J Phys Chem B 2024. [PMID: 39046872 DOI: 10.1021/acs.jpcb.4c03123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
In this paper, we describe the formation of an ordered structure in a copolymer thin film through hydration, which subsequently transitions to a different ordered structure upon dehydration. A statistical copolymer of poly(N-octadecyl acrylamide-stat-hydroxymethyl acrylamide) with a comonomer content ratio of 1:1, denoted as p(ODA50/HEAm50), was synthesized via free radical copolymerization. We prepared a thin film of this copolymer on a solid substrate and annealed it at 60 °C under humid conditions. This treatment formed a side-chain segregated lamellar (SCSegL) structure, in which the ODA and HEAm units are oriented perpendicularly to the polymer backbone and opposite each other. Increasing the annealing temperature to 90 °C led to a transition to a side-chain mixed lamellar (SCMixL) structure, where the ODA and HEAm units are also oriented perpendicularly to the polymer backbone but in both directions. The quartz crystal microbalance (QCM) data indicate that p(ODA50/HEAm50) exhibits LCST-like behavior with a transition temperature of approximately 50 °C. We conclude that the formation of the SCSegL structure at 60 °C is due to pronounced segregation between the water-adsorbed HEAm groups and the hydrophobic ODA. Conversely, dehydration at 90 °C reduces the segregation forces, forming the SCMixL structure, which exhibits lower strain. These results demonstrate that the p(ODA50/HEAm50) film undergoes an order-to-order transition driven by the hydration-dehydration process. Additionally, we found that changes in the lamellar structure significantly alter the swelling properties of the film.
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Affiliation(s)
- Mao Kikuchi
- Graduate School of Science and Engineering, Yamagata University, 1-4-12 Kojirakawa-Machi, Yamagata 990-8560, Japan
| | - Mitsuo Hara
- Faculty of Engineering and Design, Kagawa University, Hayashi-Cho, Takamatsu, Kagawa 761-0396, Japan
| | - Shusaku Nagano
- College of Science, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-Ku, Tokyo 171-8501, Japan
| | - Hinako Ebe
- Faculty of Science, Yamagata University, 1-4-12 Kojirakawa-Machi, Yamagata 990-8560, Japan
| | - Jun Matsui
- Faculty of Science, Yamagata University, 1-4-12 Kojirakawa-Machi, Yamagata 990-8560, Japan
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2
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Landfield H, Kalamaris N, Wang M. Extreme dependence of dynamics on concentration in highly crowded polyelectrolyte solutions. SCIENCE ADVANCES 2024; 10:eado4976. [PMID: 38959308 PMCID: PMC11221520 DOI: 10.1126/sciadv.ado4976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 05/30/2024] [Indexed: 07/05/2024]
Abstract
Charge-carrying species, such as polyelectrolytes, are vital to natural and synthetic processes that rely on their dynamic behavior. Through single-particle tracking techniques, the diffusivity of individual polyelectrolyte chains and overall system viscosity are determined for concentrated polylysine solutions. These studies show scaling dependences of D ~ c-6.1 and η ~ c7.2, much stronger than theoretical predictions, drawing the applicability of power law fits into question. Similar trends are observed in concentrated solutions prepared at various pH and counterion conditions. These hindered system dynamics appear universal to polyelectrolyte systems and are attributed to the large effective excluded volumes of polyelectrolyte chains inducing glassy dynamics. The framework of the Vrentas-Duda free-volume theory is used to compare polyelectrolyte and neutral systems. Supported by this theory, excluding counterion mass from total polymer mass results in all environmental conditions collapsing onto a common trendline. These results are applicable to crowded biological systems, such as intracellular environments where protein mobility is strongly inhibited.
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Affiliation(s)
- Harrison Landfield
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Nicholas Kalamaris
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA
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3
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Holkar A, Gao S, Villaseñor K, Lake M, Srivastava S. Quantitative turbidimetric characterization of stabilized complex coacervate dispersions. SOFT MATTER 2024; 20:5060-5070. [PMID: 38743276 DOI: 10.1039/d3sm01761c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Stabilizing complex coacervate microdroplets is desirable due to their various applications, such as bioreactors, drug delivery vehicles, and encapsulants. Here, we present quantitative characterization of complex coacervate dispersion stability inferred by turbidimetry measurements. The stability of the dispersions is shown to be modulated by the concentrations of comb polyelectrolyte (cPE) stabilizers and salt. We demonstrate cPEs as effective stabilizers for complex coacervate dispersions independent of the chemistry or length of the constituent polyelectrolytes, salts, or preparation routes. By monitoring the temporal evolution of dispersion turbidity, we show that cPEs suppress microdroplet coalescence with minimal change in microdroplet sizes over 48 hours, even at salt concentrations up to 300 mM. The number density and average microdroplet size are shown to be controlled by varying the cPE and salt concentrations. Lastly, turbidity maps, akin to binodal phase maps, depict an expansion of the turbid two-phase region and an increase in the salt resistance of the coacervates upon the introduction of cPEs. The coacervate salt resistance is shown to increase by >3×, and this increase is maintained for up to 15 days, demonstrating that cPEs impart higher salt resistance over extended durations.
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Affiliation(s)
- Advait Holkar
- Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA 90095, USA.
| | - Shang Gao
- Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA 90095, USA.
| | - Kathleen Villaseñor
- Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA 90095, USA.
| | - Michael Lake
- NSF BioPACIFIC MIP, University of California, Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Samanvaya Srivastava
- Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA 90095, USA.
- NSF BioPACIFIC MIP, University of California, Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Institute for Carbon Management, University of California, Los Angeles, Los Angeles, CA 90095, USA
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4
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Lalwani S, Hellikson K, Batys P, Lutkenhaus JL. Counter Anion Type Influences the Glass Transition Temperature of Polyelectrolyte Complexes. Macromolecules 2024; 57:4695-4705. [PMID: 38827958 PMCID: PMC11140738 DOI: 10.1021/acs.macromol.3c02200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 04/09/2024] [Accepted: 04/16/2024] [Indexed: 06/05/2024]
Abstract
Salt acts as a plasticizer in polyelectrolyte complexes (PECs), which impacts the physical, thermal, and mechanical properties, thus having implications in applications, such as drug delivery, energy storage, and smart coatings. Added salt disrupts polycation-polyanion intrinsic ion pairs, lowering a hydrated PEC's glass transition temperature (Tg). However, the relative influence of counterion type on the PEC's Tg is not well understood. Here, the effect of anion type (NaCl, NaBr, NaNO3, and NaI) on the Tg of solid-like, hydrated PECs composed of poly(diallydimethylammonium) (PDADMA)-poly(styrenesulfonate) (PSS) is investigated. With increasing the chaotropic nature of the salt anion, the Tg decreases. The relative differences are attributed to the doping level, the amount of bound water, the mobility of water molecules within the PECs, and the strength of interactions between the PEs. For all studied salt concentrations and salt types, the Tg followed the scaling of -1/Tg ≈ ln([IP]/[H2O]), in which [IP]/[H2O] is the ratio of intrinsic pairs to water. The scaling estimates that about 7 to 17% of the intrinsic ion pairs should be weakened for the PEC to partake in a glass transition. Put together, this study highlights that the Tg in PECs is impacted by the salt anion, but the mechanism of the glass transition remains unchanged.
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Affiliation(s)
- Suvesh
Manoj Lalwani
- Artie
McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Kayla Hellikson
- Artie
McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Piotr Batys
- Jerzy
Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, Krakow PL-30239, Poland
| | - Jodie L. Lutkenhaus
- Artie
McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
- Department
of Materials Science and Engineering, Texas
A&M University, College Station, Texas 77840, United States
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5
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Li H, Lalwani SM, Eneh CI, Braide T, Batys P, Sammalkorpi M, Lutkenhaus JL. A Perspective on the Glass Transition and the Dynamics of Polyelectrolyte Multilayers and Complexes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:14823-14839. [PMID: 37819874 PMCID: PMC10863056 DOI: 10.1021/acs.langmuir.3c00974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 09/11/2023] [Indexed: 10/13/2023]
Abstract
Polyelectrolyte multilayers (PEMs) or polyelectrolyte complexes (PECs), formed by layer-by-layer assembly or the mixing of oppositely charged polyelectrolytes (PEs) in aqueous solution, respectively, have potential applications in health, energy, and the environment. PEMs and PECs are very tunable because their structure and properties are influenced by factors such as pH, ionic strength, salt type, humidity, and temperature. Therefore, it is increasingly important to understand how these factors affect PECs and PEMs on a molecular level. In this Feature Article, we summarize our contributions to the field in the development of approaches to quantify the swelling, thermal properties, and dynamic mechanical properties of PEMs and PECs. First, the role of water as a plasticizer and in the glass-transition temperature (Tg) in both strong poly(diallyldimethylammonium)/poly(sodium 4-styrenesulfonate) (PDADMA/PSS) and weak poly(allylamine hydrochloride)/poly(acrylic acid) (PAH/PAA) systems is presented. Then, factors influencing the dynamics of PECs and PEMs are discussed. We also reflect on the swelling of PEMs in response to different salts and solvent additives. Last, the nature of water's microenvironment in PEMs/PECs is discussed. A special emphasis is placed on experimental techniques, along with molecular simulations. Taken together, this review presents an outlook and offers recommendations for future research directions, such as studying the additional effects of hydrogen-bonding hydrophobic interactions.
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Affiliation(s)
- Hongwei Li
- Artie
McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Suvesh Manoj Lalwani
- Artie
McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Chikaodinaka I. Eneh
- Artie
McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Tamunoemi Braide
- Artie
McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Piotr Batys
- Jerzy
Haber Institute of Catalysis and Surface Chemistry, Polish Academy
of Sciences, Niezapominajek 8, 30-239 Krakow, Poland
| | - Maria Sammalkorpi
- Department
of Chemistry and Materials Science, Aalto
University, P.O. Box 16100, 00076 Aalto, Finland
- Department
of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, 00076 Aalto, Finland
- Academy
of Finland Center of Excellence in Life-Inspired Hybrid Materials
(LIBER), Aalto University, P.O. Box 16100, 00076 Aalto, Finland
| | - Jodie L. Lutkenhaus
- Artie
McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
- Department
of Materials Science and Engineering, Texas
A&M University, College
Station, Texas 77840, United States
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6
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Krishna B A, de Vos WM, Lindhoud S. Control over Charge Density by Tuning the Polyelectrolyte Type and Monomer Ratio in Saloplastic-Based Ion-Exchange Membranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:6874-6884. [PMID: 37126784 DOI: 10.1021/acs.langmuir.3c00497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Membranes based on polyelectrolyte complexes (PECs) can now be prepared through several sustainable, organic solvent-free approaches. A recently developed approach allows PECs made by stoichiometric mixing of polyelectrolytes to be hot-pressed into dense saloplastics, which then function as ion-exchange membranes. An important advantage of PECs is that tuning their properties can provide significant control over the properties of the fabricated materials, and thus over their separation properties. This work studies the effects of two key parameters─(a) ratio of mixing and (b) choice of polyelectrolytes─on the mechanical, material, and separation properties of their corresponding hot-pressed saloplastic-based ion-exchange membranes. By varying these two main parameters, charge density─the key property of any IEM─was found to be controllable. While studying several systems, including strong/strong, strong/weak, and weak/weak combinations of polyelectrolytes, it was observed that not all systems could be processed into saloplastic membranes. For the processable systems, expected trends were observed where a higher excess of one polyelectrolyte would lead to a more charged system, resulting in higher water uptake and better permselectivities. An anomaly was the polystyrenesulfonate-polyvinylamine system, which showed an opposite trend with a higher polycation ratio, leading to a more negative charge. Overall, we have found that it is possible to successfully fabricate saloplastic-based anion- and cation-exchange membranes with tunable charge densities through careful choice of polyelectrolyte combination and ratio of mixing.
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Affiliation(s)
- Ameya Krishna B
- Membrane Surface Science, Membrane Science and Technology, MESA+ Institute of Nanotechnology, University of Twente, Enschede, Overijssel 7500 AE, The Netherlands
- Department of Molecules and Materials, University of Twente, Enschede, Overijssel 7500 AE, The Netherlands
| | - Wiebe M de Vos
- Membrane Surface Science, Membrane Science and Technology, MESA+ Institute of Nanotechnology, University of Twente, Enschede, Overijssel 7500 AE, The Netherlands
| | - Saskia Lindhoud
- Department of Molecules and Materials, University of Twente, Enschede, Overijssel 7500 AE, The Netherlands
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7
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Klačić T, Jugl A, Pekař M, Kovačević D. High-Resolution Ultrasonic Spectroscopy: Looking at the Interpolyelectrolyte Neutralization from a Different Perspective. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Affiliation(s)
- Tin Klačić
- Division of Physical Chemistry, Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, HR-10000 Zagreb, Croatia
| | - Adam Jugl
- Institute of Physical and Applied Chemistry & Materials Research Centre, Faculty of Chemistry, Brno University of Technology, Purkyňova 118, CZ-61200 Brno, Czech Republic
| | - Miloslav Pekař
- Institute of Physical and Applied Chemistry & Materials Research Centre, Faculty of Chemistry, Brno University of Technology, Purkyňova 118, CZ-61200 Brno, Czech Republic
| | - Davor Kovačević
- Division of Physical Chemistry, Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, HR-10000 Zagreb, Croatia
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8
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Li J, Krishna B A, van Ewijk G, van Dijken DJ, de Vos WM, van der Gucht J. A comparison of complexation induced brittleness in PEI/PSS and PEI/NaPSS single-step coatings. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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9
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Yang M, Sonawane SL, Digby ZA, Park JG, Schlenoff JB. Influence of “Hydrophobicity” on the Composition and Dynamics of Polyelectrolyte Complex Coacervates. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00267] [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)
- Mo Yang
- Department of Chemistry and Biochemistry, The Florida State University, Tallahassee, Florida 32306, United States
| | - Swapnil L. Sonawane
- Department of Chemistry and Biochemistry, The Florida State University, Tallahassee, Florida 32306, United States
| | - Zachary A. Digby
- Department of Chemistry and Biochemistry, The Florida State University, Tallahassee, Florida 32306, United States
| | - Jin G. Park
- High Performance Materials Institute, The Florida State University, Tallahassee Florida 32310, United States
| | - Joseph B. Schlenoff
- Department of Chemistry and Biochemistry, The Florida State University, Tallahassee, Florida 32306, United States
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10
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Nishida K, Anada T, Tanaka M. Roles of interfacial water states on advanced biomedical material design. Adv Drug Deliv Rev 2022; 186:114310. [PMID: 35487283 DOI: 10.1016/j.addr.2022.114310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 04/12/2022] [Accepted: 04/21/2022] [Indexed: 12/15/2022]
Abstract
When biomedical materials come into contact with body fluids, the first reaction that occurs on the material surface is hydration; proteins are then adsorbed and denatured on the hydrated material surface. The amount and degree of denaturation of adsorbed proteins affect subsequent cell behavior, including cell adhesion, migration, proliferation, and differentiation. Biomolecules are important for understanding the interactions and biological reactions of biomedical materials to elucidate the role of hydration in biomedical materials and their interaction partners. Analysis of the water states of hydrated materials is complicated and remains controversial; however, knowledge about interfacial water is useful for the design and development of advanced biomaterials. Herein, we summarize recent findings on the hydration of synthetic polymers, supramolecular materials, inorganic materials, proteins, and lipid membranes. Furthermore, we present recent advances in our understanding of the classification of interfacial water and advanced polymer biomaterials, based on the intermediate water concept.
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Affiliation(s)
- Kei Nishida
- Institute for Materials Chemistry and Engineering Kyushu university, 744 Motooka, Nishi-ku Fukuoka 819-0395, Japan; Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, Japan(1)
| | - Takahisa Anada
- Institute for Materials Chemistry and Engineering Kyushu university, 744 Motooka, Nishi-ku Fukuoka 819-0395, Japan
| | - Masaru Tanaka
- Institute for Materials Chemistry and Engineering Kyushu university, 744 Motooka, Nishi-ku Fukuoka 819-0395, Japan.
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11
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Ylitalo AS, Balzer C, Zhang P, Wang ZG. Electrostatic Correlations and Temperature-Dependent Dielectric Constant Can Model LCST in Polyelectrolyte Complex Coacervation. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c02000] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Andrew S. Ylitalo
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Christopher Balzer
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Pengfei Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Center for Advanced Low-Dimension Materials, College of Material Science and Engineering, Donghua University, Shanghai 201620, China
| | - Zhen-Gang Wang
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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12
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Durmaz EN, Willott JD, Mizan MMH, de Vos WM. Tuning the charge of polyelectrolyte complex membranes prepared via aqueous phase separation. SOFT MATTER 2021; 17:9420-9427. [PMID: 34609392 PMCID: PMC8549507 DOI: 10.1039/d1sm01199e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 09/29/2021] [Indexed: 05/19/2023]
Abstract
In this work, polyelectrolyte mixing ratio is studied as a tuning parameter to control the charge, and thus the separation properties of polyelectrolyte complex (PEC) membranes prepared via Aqueous Phase Separation (APS). In this approach, various ratios of poly(sodium 4-styrenesulfonate) (PSS) and poly(diallyldimethylammonium chloride) (PDADMAC) are mixed at high salinity and the PEC-based membranes are then precipitated using low salinity coagulation baths. The monomeric ratio of PSS to PDADMAC is varied from 1.0 : 0.8 through to 1.0 : 1.2. Obtained membranes have an asymmetric structure and function as nanofiltration membranes with on average 1 L m-2 h-1 bar-1 pure water permeance and <400 Da molecular weight cut-off (MWCO); except for the 1.0 : 1.2 membrane, where the water permeance was much higher (>20 L m-2 h-1 bar-1) with a similarly low MWCO. For the first time, we report the formation of both negatively and positively charged PSS-PDADMAC based APS membranes, as determined by both streaming potential and salt retention measurements. We hypothesize that the salt type used in the APS process plays a key role in the observed change in membrane charge. The point where the membrane charge transitions from negative to positive is found to be between the 1.0 : 0.9 and 1.0 : 1.0 PSS : PDADMAC ratios. The polyelectrolyte ratio not only affects membrane charge, but also their mechanical properties. The 1.0 : 0.9 and 1.0 : 1.0 membranes perform the best amongst the membranes prepared in this study since they have high salt retentions (up to 90% Na2SO4 and 75% MgCl2, respectively) and better mechanical stability. The higher permeance of the more charged, and thus more swollen, 1.0 : 0.8 and 1.0 : 1.2 membranes provide a relevant new direction for the development of APS-based PEC membranes.
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Affiliation(s)
- Elif Nur Durmaz
- Membrane Science and Technology, MESA+ Institute for Nanotechnology, University of Twente, Faculty of Science and Technology, P.O. Box 217, 7500 AE Enschede, The Netherlands.
| | - Joshua D Willott
- Membrane Science and Technology, MESA+ Institute for Nanotechnology, University of Twente, Faculty of Science and Technology, P.O. Box 217, 7500 AE Enschede, The Netherlands.
| | - Md Mizanul Haque Mizan
- Membrane Science and Technology, MESA+ Institute for Nanotechnology, University of Twente, Faculty of Science and Technology, P.O. Box 217, 7500 AE Enschede, The Netherlands.
| | - Wiebe M de Vos
- Membrane Science and Technology, MESA+ Institute for Nanotechnology, University of Twente, Faculty of Science and Technology, P.O. Box 217, 7500 AE Enschede, The Netherlands.
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13
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Sill A, Nestler P, Thran P, Helm CA. Dependence of PSS Diffusion in Multilayers of Entangled PDADMA on Temperature and Salt Concentration: More than One Diffusion Constant. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00639] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Annekatrin Sill
- Institute of Physics, University of Greifswald, Felix-Hausdorff-Straße 6, D-17489 Greifswald, Germany
| | - Peter Nestler
- ZIK HIKE—Biomechanics, University of Greifswald, Fleischmannstr. 42, D-17489 Greifswald, Germany
| | - Peter Thran
- Institute of Physics, University of Greifswald, Felix-Hausdorff-Straße 6, D-17489 Greifswald, Germany
| | - Christiane A. Helm
- Institute of Physics, University of Greifswald, Felix-Hausdorff-Straße 6, D-17489 Greifswald, Germany
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14
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Chen Y, Yang M, Shaheen SA, Schlenoff JB. Influence of Nonstoichiometry on the Viscoelastic Properties of a Polyelectrolyte Complex. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01154] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yuhui Chen
- Department of Chemistry and Biochemistry, The Florida State University, Tallahassee 32306, Florida, United States
| | - Mo Yang
- Department of Chemistry and Biochemistry, The Florida State University, Tallahassee 32306, Florida, United States
| | - Samir Abou Shaheen
- Department of Chemistry and Biochemistry, The Florida State University, Tallahassee 32306, Florida, United States
| | - Joseph B. Schlenoff
- Department of Chemistry and Biochemistry, The Florida State University, Tallahassee 32306, Florida, United States
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15
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Zhu CN, Zheng SY, Qiu HN, Du C, Du M, Wu ZL, Zheng Q. Plastic-Like Supramolecular Hydrogels with Polyelectrolyte/Surfactant Complexes as Physical Cross-links. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00835] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Chao Nan Zhu
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Si Yu Zheng
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Hao Nan Qiu
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Cong Du
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Miao Du
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zi Liang Wu
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Qiang Zheng
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
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16
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Du C, Zhang XN, Sun TL, Du M, Zheng Q, Wu ZL. Hydrogen-Bond Association-Mediated Dynamics and Viscoelastic Properties of Tough Supramolecular Hydrogels. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00152] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Cong Du
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xin Ning Zhang
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Tao Lin Sun
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Miao Du
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Qiang Zheng
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zi Liang Wu
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
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17
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Deng G, Schoch TD, Cavicchi KA. Systematic Modification of the Glass Transition Temperature of Ion-Pair Comonomer Based Polyelectrolytes and Ionomers by Copolymerization with a Chemically Similar Cationic Monomer. Gels 2021; 7:45. [PMID: 33924350 PMCID: PMC8167584 DOI: 10.3390/gels7020045] [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: 03/01/2021] [Revised: 04/02/2021] [Accepted: 04/04/2021] [Indexed: 11/20/2022] Open
Abstract
Ion-pair comonomers (IPCs) where both the anion and cation contain polymerizable functional groups offer a route to prepare polyampholyte, ion-containing polymers. Polymerizing vinyl functional groups by free-radical polymerization produces bridging ion-pairs that act as non-covalent crosslinks between backbone segments. In particular the homopolymerization of the IPC vinyl benzyl tri-n-octylphosphonium styrene sulfonate produces a stiff, glassy polymer with a glass transition temperature (Tg) of 191 °C, while copolymerization with a non-ionic acrylate produces microphase separates ionomers with ion-rich and ion-poor domains. This work investigates the tuning of the Tg of the polyelectrolyte or ion-rich domains of the ionomers by copolymerizing with vinyl benzyl tri-n-octylphosphonium p-toluene sulfonic acid. This chemically similar repeat unit with pendant rather than bridging ion-pairs lowers the Tg compared to the polyelectrolyte or ionomer containing only the IPC segments. Rheological measurements were used to characterize the thermomechanical behavior and Tg of different copolymers. The Tg variation in the polyelectrolyte vs. weight fraction IPC could be fit with either the Gordon-Taylor or Couchman-Karasz equation. Copolymerization of IPC with a chemically similar cationic monomer offers a viable route to systematically vary the Tg of the resulting polymers useful for tailoring the material properties in applications such as elastomers or shape memory polymers.
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Affiliation(s)
- Guodong Deng
- School of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH 44325, USA; (G.D.); (T.D.S.)
- Promerus LLC., 225 W Bartges St, Akron, OH 44307, USA
| | - Timothy D. Schoch
- School of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH 44325, USA; (G.D.); (T.D.S.)
- Department of Chemistry, Oklahoma State University, Stillwater, OK 74078, USA
| | - Kevin A. Cavicchi
- School of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH 44325, USA; (G.D.); (T.D.S.)
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18
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Affiliation(s)
- Yuhui Chen
- Department of Chemistry and Biochemistry, The Florida State University, Tallahassee, Florida 32306, United States
| | - Mo Yang
- Department of Chemistry and Biochemistry, The Florida State University, Tallahassee, Florida 32306, United States
| | - Joseph B. Schlenoff
- Department of Chemistry and Biochemistry, The Florida State University, Tallahassee, Florida 32306, United States
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19
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Parsimehr H, Pazokifard S. Ambient temperature cross-linkable acrylic latexes: effect of cross-link density, glass transition temperature and application temperature difference on mechanical properties. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-020-03515-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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20
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Overton P, Li W, Cao X, Holdcroft S. Tuning Ion Exchange Capacity in Hydroxide-Stable Poly(arylimidazolium) Ionenes: Increasing the Ionic Content Decreases the Dependence of Conductivity and Hydration on Temperature and Humidity. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c02014] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Philip Overton
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia V5A 1S6, Canada
| | - Wei Li
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia V5A 1S6, Canada
| | - Xinzhi Cao
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia V5A 1S6, Canada
| | - Steven Holdcroft
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia V5A 1S6, Canada
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21
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Abstract
A scaling model for the structure of coacervates is presented for mixtures of oppositely-charged polyelectrolytes of both symmetric and asymmetric charge-densities for different degrees of electrostatic strength and levels of added salt. At low electrostatic strengths, weak coacervates, with the energy of electrostatic interactions between charges less than the thermal energy, k B T, are liquid. At higher electrostatic strengths, strong coacervates are gels with crosslinks formed by ion pairs of opposite charges bound to each other with energy higher than k B T. Charge-symmetric coacervates are formed for mixtures of oppositely-charged polyelectrolytes with equal and opposite charge-densities. While charge-symmetric weak coacervates form a semidilute polymer solution with a correlation length equal to the electrostatic blob size, charge-symmetric strong coacervates form reversible gels with a correlation length on the order of the distance between bound ion pairs. Charge-asymmetric coacervates are formed from mixtures of oppositely-charged polyelectrolytes with different charge-densities. While charge-asymmetric weak coacervates form double solutions with two correlation lengths and qualitatively different chain conformations of polycations and polyanions, charge-asymmetric strong coacervates form bottlebrush and star-like gels. Unlike liquid coacervates, for which an increase in the concentration of added salt screens electrostatic interactions, causing structural rearrangement and eventually leads to their dissolution, the salt does not affect the structure of strong coacervates until ion pairs dissociate and the gel disperses.
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Affiliation(s)
- Scott P O Danielsen
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, United States
| | - Sergey Panyukov
- P. N. Lebedev Physics Institute, Russian Academy of Sciences, Moscow 117924, Russia
| | - Michael Rubinstein
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, United States
- Departments of Biomedical Engineering, Physics, and Chemistry, Duke University, Durham, NC 27708, United States
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22
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Manoj Lalwani S, Eneh CI, Lutkenhaus JL. Emerging trends in the dynamics of polyelectrolyte complexes. Phys Chem Chem Phys 2020; 22:24157-24177. [PMID: 33094301 DOI: 10.1039/d0cp03696j] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Polyelectrolyte complexes (PECs) are highly tunable materials that result from the phase separation that occurs upon mixing oppositely charged polymers. Over the years, they have gained interest due to their broad range of applications such as drug delivery systems, protective coatings, food packaging, and surface adhesives. In this review, we summarize the structure, phase transitions, chain dynamics, and rheological and thermal properties of PECs. Although most literature focuses upon the thermodynamics and application of PECs, this review highlights the fundamental role of salt and water on mechanical and thermal properties impacting the PEC's dynamics. A special focus is placed upon experimental results and techniques. Specifically, the review examines phase behaviour and salt partitioning in PECs, as well as different techniques used to measure diffusion coefficients, relaxation times, various superpositioning principles, glass transitions, and water microenvironments in PECs. This review concludes with future areas of opportunity in fundamental studies and best practices in reporting.
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Affiliation(s)
- Suvesh Manoj Lalwani
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77840, USA.
| | - Chikaodinaka I Eneh
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77840, USA.
| | - Jodie L Lutkenhaus
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77840, USA. and Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77840, USA
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23
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Wang J, Xue Y, Chen X, Hu M, Ren K, Ji J. Humidity-Triggered Relaxation of Polyelectrolyte Complexes as a Robust Approach to Generate Extracellular Matrix Biomimetic Films. Adv Healthc Mater 2020; 9:e2000381. [PMID: 32548925 DOI: 10.1002/adhm.202000381] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 05/29/2020] [Indexed: 12/15/2022]
Abstract
Generating a biofunctional film that can mimic the extracellular matrix (ECM) in an efficient and robust technique that may have great potential for medical devices, tissue engineering, and regenerative medicines. Herein, a facile approach to generate ECM biomimetic films based on the humidity-triggered relaxation of polyelectrolyte complex (PEC) nanoparticles is reported. The poly(l-lysine) and hyaluronan are precomplexed and sprayed onto a substrate, which, via a trigger of vaporous water, can be transformed into an even and stable film. The spontaneous polymer chain interfusion (diffusion coefficient ≈1.01 × 10-9 cm2 s-1 ) under saturated humidity, allowing for the rapid reorganization (within 30 min) of film morphology and structure is demonstrated. A controllable and scalable way for the loading of diversified bioactive agents, as well as on-demand modulation of stiffness is further presented. Moreover, the high-throughput arrays and programmed patterns can be easily completed, suggesting huge potentials that surpass those of state-of-the-art methods. Combined with high efficiency and flexible functionalization, it is believed that this approach should be beneficial for extending the practical applications of PEC films, such as medical implants, chip detectors, and so on.
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Affiliation(s)
- Jing Wang
- MOE Key Laboratory of Macromolecule Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang University Hangzhou 310027 P. R. China
| | - Yun‐Fan Xue
- MOE Key Laboratory of Macromolecule Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang University Hangzhou 310027 P. R. China
| | - Xia‐Chao Chen
- MOE Key Laboratory of Macromolecule Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang University Hangzhou 310027 P. R. China
| | - Mi Hu
- MOE Key Laboratory of Macromolecule Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang University Hangzhou 310027 P. R. China
| | - Ke‐Feng Ren
- MOE Key Laboratory of Macromolecule Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang University Hangzhou 310027 P. R. China
| | - Jian Ji
- MOE Key Laboratory of Macromolecule Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang University Hangzhou 310027 P. R. China
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24
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Van der Meeren L, Li J, Konrad M, Skirtach AG, Volodkin D, Parakhonskiy BV. Temperature Window for Encapsulation of an Enzyme into Thermally Shrunk, CaCO
3
Templated Polyelectrolyte Multilayer Capsules. Macromol Biosci 2020; 20:e2000081. [DOI: 10.1002/mabi.202000081] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 04/26/2020] [Indexed: 12/16/2022]
Affiliation(s)
| | - Jie Li
- Department of BiotechnologyGhent University Ghent 9000 Belgium
| | - Manfred Konrad
- Max Planck Institute for Biophysical Chemistry Göttingen 37077 Germany
| | | | - Dmitry Volodkin
- School of Science and TechnologyNottingham Trent University Nottingham NG11 8NS UK
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25
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Kurochkin MA, Sindeeva OA, Brodovskaya EP, Gai M, Frueh J, Su L, Sapelkin A, Tuchin VV, Sukhorukov GB. Laser-triggered drug release from polymeric 3-D micro-structured films via optical fibers. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 110:110664. [DOI: 10.1016/j.msec.2020.110664] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 12/25/2019] [Accepted: 01/13/2020] [Indexed: 10/25/2022]
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26
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Huang W, Liu D, Zhu L, Yang S. A Salt Controlled Scalable Approach for Formation of Polyelectrolyte Complex Fiber
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.201900496] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Wentao Huang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Center for Advanced Low‐dimension Materials, College of Materials Science and Engineering, Donghua University Shanghai 201620 China
| | - Dezhong Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Center for Advanced Low‐dimension Materials, College of Materials Science and Engineering, Donghua University Shanghai 201620 China
| | - Liping Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Center for Advanced Low‐dimension Materials, College of Materials Science and Engineering, Donghua University Shanghai 201620 China
| | - Shuguang Yang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Center for Advanced Low‐dimension Materials, College of Materials Science and Engineering, Donghua University Shanghai 201620 China
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27
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Eneh CI, Bolen MJ, Suarez-Martinez PC, Bachmann AL, Zimudzi TJ, Hickner MA, Batys P, Sammalkorpi M, Lutkenhaus JL. Fourier transform infrared spectroscopy investigation of water microenvironments in polyelectrolyte multilayers at varying temperatures. SOFT MATTER 2020; 16:2291-2300. [PMID: 32043105 DOI: 10.1039/c9sm02478f] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Polyelectrolyte multilayers (PEMs) are thin films formed by the alternating deposition of oppositely charged polyelectrolytes. Water plays an important role in influencing the physical properties of PEMs, as it can act both as a plasticizer and swelling agent. However, the way in which water molecules distribute around and hydrate ion pairs has not been fully quantified with respect to both temperature and ionic strength. Here, we examine the effects of temperature and ionic strength on the hydration microenvironments of fully immersed poly(diallyldimethylammonium)/polystyrene sulfonate (PDADMA/PSS) PEMs. This is accomplished by tracking the OD stretch peak using attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy at 0.25-1.5 M NaCl and 35-70 °C. The OD stretch peak is deconvoluted into three peaks: (1) high frequency water, which represents a tightly bound microenvironment, (2) low frequency water, which represents a loosely bound microenvironment, and (3) bulk water. In general, the majority of water absorbed into the PEM exists in a bound state, with little-to-no bulk water observed. Increasing temperature slightly reduces the amount of absorbed water, while addition of salt increases the amount of absorbed water. Finally, a van't Hoff analysis is applied to estimate the enthalpy (11-22 kJ mol-1) and entropy (48-79 kJ mol-1 K-1) of water exchanging from low to high frequency states.
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Affiliation(s)
- Chikaodinaka I Eneh
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77840, USA.
| | - Matthew J Bolen
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77840, USA.
| | - Pilar C Suarez-Martinez
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77840, USA.
| | - Adam L Bachmann
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695, USA
| | - Tawanda J Zimudzi
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Michael A Hickner
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Piotr Batys
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, PL-30239 Krakow, Poland
| | - Maria Sammalkorpi
- Department of Chemistry and Materials Science, Aalto University, PO Box 16100, 00076 Aalto, Finland and Department of Bioproducts and Biosystems, Aalto University, PO Box 16100, 00076 Aalto, Finland
| | - Jodie L Lutkenhaus
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77840, USA. and Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77840, USA
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28
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Ostendorf A, Schönhoff M, Cramer C. Ionic conductivity of solid polyelectrolyte complexes with varying water content: application of the dynamic structure model. Phys Chem Chem Phys 2019; 21:7321-7329. [DOI: 10.1039/c8cp05853a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present a systematic study of the dc conductivity of solid polyelectrolyte complexes (PEC) of type xPSS PSS·(1 − xPSS) PDADMA as a function of temperature, and of PSS and water content, respectively. The data are discussed in the framework of the dynamic structure model.
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Affiliation(s)
- A. Ostendorf
- Institute of Physical Chemistry
- University of Muenster
- 48149 Münster
- Germany
| | - M. Schönhoff
- Institute of Physical Chemistry
- University of Muenster
- 48149 Münster
- Germany
| | - C. Cramer
- Institute of Physical Chemistry
- University of Muenster
- 48149 Münster
- Germany
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29
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Affiliation(s)
- Hadi M. Fares
- Department of Chemistry and Biochemistry, The Florida State University, Tallahassee, Florida 32306-4390, United States
| | - Qifeng Wang
- Department of Chemistry and Biochemistry, The Florida State University, Tallahassee, Florida 32306-4390, United States
| | - Mo Yang
- Department of Chemistry and Biochemistry, The Florida State University, Tallahassee, Florida 32306-4390, United States
| | - Joseph B. Schlenoff
- Department of Chemistry and Biochemistry, The Florida State University, Tallahassee, Florida 32306-4390, United States
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30
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31
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Schlenoff JB. Site-specific perspective on interactions in polyelectrolyte complexes: Toward quantitative understanding. J Chem Phys 2018; 149:163314. [DOI: 10.1063/1.5035567] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Joseph B. Schlenoff
- Department of Chemistry and Biochemistry, The Florida State University, Tallahassee, Florida 32306-4390, USA
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32
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O’Neal JT, Wilcox KG, Zhang Y, George IM, Lutkenhaus JL. Comparison of KBr and NaCl effects on the glass transition temperature of hydrated layer-by-layer assemblies. J Chem Phys 2018; 149:163317. [DOI: 10.1063/1.5037491] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Affiliation(s)
- Joshua T. O’Neal
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843-3122, USA
| | - Kathryn G. Wilcox
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, USA
| | - Yanpu Zhang
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, USA
| | - Ian M. George
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, USA
| | - Jodie L. Lutkenhaus
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843-3122, USA
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, USA
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33
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Batys P, Zhang Y, Lutkenhaus JL, Sammalkorpi M. Hydration and Temperature Response of Water Mobility in Poly(diallyldimethylammonium)-Poly(sodium 4-styrenesulfonate) Complexes. Macromolecules 2018; 51:8268-8277. [PMID: 30416210 PMCID: PMC6221370 DOI: 10.1021/acs.macromol.8b01441] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 09/25/2018] [Indexed: 01/29/2023]
Abstract
The combination of all-atom molecular dynamics simulations with differential scanning calorimetry (DSC) has been exploited to investigate the influence of temperature and hydration on the water distribution and mobility in poly(diallyldimethylammonium) (PDADMA) and poly(sodium 4-styrenesulfonate) (PSS) complexes. The findings show that the vast majority of the water molecules hydrating the polyelectrolyte complexes (PECs) with 18-30 wt % hydration are effectively immobilized due to the strong interactions between the PE charge groups and water. Temperature and hydration were found to decrease similarly the fraction of strongly bound water. Additionally, at low hydration or at low temperatures, water motions become dominantly local vibrations and rotations instead of translational motion; translation dominance is recovered in a similar fashion by increase of both temperature and hydration. DSC experiments corroborate the simulation findings by showing that nonfreezing, bound water dominates in hydrated PECs at comparable hydrations. Our results raise attention to water as an equal variable to temperature in the design and engineering of stimuli-responsive polyelectrolyte materials and provide mechanistic explanation for the similarity.
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Affiliation(s)
- Piotr Batys
- Department
of Chemistry and Materials Science and Department of Bioproducts and Biosystems,
School of Chemical Engineering, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish
Academy of Sciences, Niezapominajek 8, PL-30239 Krakow, Poland
| | - Yanpu Zhang
- Artie
McFerrin Department of Chemical Engineering and Department of Materials Science
and Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Jodie L. Lutkenhaus
- Artie
McFerrin Department of Chemical Engineering and Department of Materials Science
and Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Maria Sammalkorpi
- Department
of Chemistry and Materials Science and Department of Bioproducts and Biosystems,
School of Chemical Engineering, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland
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34
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Zhang Y, Batys P, O’Neal JT, Li F, Sammalkorpi M, Lutkenhaus JL. Molecular Origin of the Glass Transition in Polyelectrolyte Assemblies. ACS CENTRAL SCIENCE 2018; 4:638-644. [PMID: 29806011 PMCID: PMC5968513 DOI: 10.1021/acscentsci.8b00137] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Indexed: 05/21/2023]
Abstract
Water plays a central role in the assembly and the dynamics of charged systems such as proteins, enzymes, DNA, and surfactants. Yet it remains a challenge to resolve how water affects relaxation at a molecular level, particularly for assemblies of oppositely charged macromolecules. Here, the molecular origin of water's influence on the glass transition is quantified for several charged macromolecular systems. It is revealed that the glass transition temperature (Tg) is controlled by the number of water molecules surrounding an oppositely charged polyelectrolyte-polyelectrolyte intrinsic ion pair as 1/Tg ∼ ln(nH2O/nintrinsic ion pair). This relationship is found to be "general", as it holds for two completely different types of charged systems (pH- and salt-sensitive) and for both polyelectrolyte complexes and polyelectrolyte multilayers, which are made by different paths. This suggests that water facilitates the relaxation of charged assemblies by reducing attractions between oppositely charged intrinsic ion pairs. This finding impacts current interpretations of relaxation dynamics in charged assemblies and points to water's important contribution at the molecular level.
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Affiliation(s)
- Yanpu Zhang
- Artie
McFerrin Department of Chemical Engineering and Department of Materials Science
and Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Piotr Batys
- Department of Chemistry and Materials Science, Department of Bioproducts
and Biosystems, Aalto University, P.O.
Box 16100, 00076 Aalto, Finland
- Jerzy
Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, PL-30239 Krakow, Poland
| | - Joshua T. O’Neal
- Artie
McFerrin Department of Chemical Engineering and Department of Materials Science
and Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Fei Li
- Artie
McFerrin Department of Chemical Engineering and Department of Materials Science
and Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Maria Sammalkorpi
- Department of Chemistry and Materials Science, Department of Bioproducts
and Biosystems, Aalto University, P.O.
Box 16100, 00076 Aalto, Finland
| | - Jodie L. Lutkenhaus
- Artie
McFerrin Department of Chemical Engineering and Department of Materials Science
and Engineering, Texas A&M University, College Station, Texas 77843, United States
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35
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Ghoussoub YE, Zerball M, Fares HM, Ankner JF, von Klitzing R, Schlenoff JB. Ion distribution in dry polyelectrolyte multilayers: a neutron reflectometry study. SOFT MATTER 2018; 14:1699-1708. [PMID: 29424853 DOI: 10.1039/c7sm02461d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Ultrathin films of complexed polycation poly(diallyldimethylammonium), PDADMA, and polyanion poly(styrenesulfonate), PSS, were prepared on silicon wafers using the layer-by-layer adsorption technique. When terminated with PDADMA, all films had excess PDADMA, which was balanced by counterions. Neutron reflectivity of these as-made multilayers was compared with measurements on multilayers which had been further processed to ensure 1 : 1 stoichiometry of PDADMA and PSS. The compositions of all films, including polymers and counterions, were determined experimentally rather than by fitting, reducing the number of fit parameters required to model the reflectivity. For each sample, acetate, either protiated, CH3COO-, or deuterated, CD3COO-, served as the counterion. All films were maintained dry under vacuum. Scattering length density profiles were constrained to fit reflectivity data from samples having either counterion. The best fits were obtained with uniform counterion concentrations, even for stoichiometric samples that had been exposed to PDADMA for ca. 5 minutes, showing that surprisingly fast and complete transport of excess cationic charge occurs throughout the multilayer during its construction.
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Affiliation(s)
- Yara E Ghoussoub
- Department of Chemistry and Biochemistry, The Florida State University, Tallahassee, Florida 32306-4390, USA.
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