Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Wetting behavior of polyelectrolyte complex coacervates on solid surfaces

Journal Article · · Soft Matter
DOI:https://doi.org/10.1039/d2sm00859a· OSTI ID:1978914
 [1];  [2];  [3]
  1. California Institute of Technology (CalTech), Pasadena, CA (United States); OSTI
  2. Donghua University, Shanghai (China)
  3. California Institute of Technology (CalTech), Pasadena, CA (United States)
The wetting behavior of complex coacervates underpins their use in many emerging applications of surface science, particularly wet adhesives and coatings. Many factors dictate if a coacervate phase will condense on a solid surface, including solution conditions, the nature of the polymer–substrate interaction, and the underlying supernatant–coacervate bulk phase behavior. In this work, we use a simple inhomogeneous mean-field theory to study the wetting behavior of complex coacervates on solid surfaces both off-coexistence (wetting transitions) and on-coexistence (contact angles). Here we focus on the effects of salt concentration, the polycation/polyanion surface affinity, and the applied electrostatic potential on the wettability. We find that the coacervate generally wets the surface via a first order wetting transition with second order transitions possible above a surface critical point. Applying an electrostatic potential to a solid surface always improves the surface wettability when the polycation/polyanion–substrate interaction is symmetric. For asymmetric surface affinity, the wettability has a nonmonotonic dependence with the applied potential. We use simple scaling and thermodynamic arguments to explain our results.
Research Organization:
Krell Institute, Ames, IA (United States)
Sponsoring Organization:
National Natural Science Foundation of China (NSFC); USDOE; USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
Grant/Contract Number:
SC0020347
OSTI ID:
1978914
Alternate ID(s):
OSTI ID: 1881997
Journal Information:
Soft Matter, Journal Name: Soft Matter Journal Issue: 34 Vol. 18; ISSN 1744-683X
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

References (95)

Density functional theory for chemical engineering: From capillarity to soft materials journal January 2006
Phase separation in polyelectrolyte solutions. Theory of complex coacervation journal May 1957
A review of the preparation and application of flavour and essential oils microcapsules based on complex coacervation technology: Microcapsules based on coacervation technology journal December 2013
A Water-Borne Adhesive Modeled after the Sandcastle Glue of P. californica journal May 2009
A Simple Model of Wetting, Prewetting, and Layering Transitions of Structured Liquids journal March 1998
Complex Coacervation: Microcapsule Formation book January 1994
Extension of Gibbs–Duhem equation including influences of external fields journal March 2018
Textiles for health: a review of textile fabrics treated with chitosan microcapsules journal August 2019
Encapsulation of phase change materials by complex coacervation to improve thermal performances and flame retardant properties of the cotton fabrics journal March 2016
The wetting transition for polymer mixtures journal May 1994
Electrowetting: a recent outbreak journal February 2001
Protein/polysaccharide complexes and coacervates in food systems journal September 2011
Complex coacervates as a foundation for synthetic underwater adhesives journal September 2011
A review of the early development of the thermodynamics of the complex coacervation phase separation journal September 2011
Development of the modern theory of polymeric complex coacervation journal January 2017
The role of coacervation and phase transitions in the sandcastle worm adhesive system journal January 2017
Complex coacervates formed across liquid interfaces: A self-consistent field analysis journal January 2017
Molecular and structural basis of low interfacial energy of complex coacervates in water journal January 2017
Overcharging and charge inversion: Finding the correct explanation(s) journal December 2019
Interfacial tension in polyelectrolyte systems exhibiting associative liquid–liquid phase separation journal June 2021
Industrially scalable complex coacervation process to microencapsulate food ingredients journal January 2020
Complex coacervation: Principles, mechanisms and applications in microencapsulation journal January 2019
Polyelectrolyte complexes: Bulk phases and colloidal systems journal September 2011
Complex coacervation: Encapsulation and controlled release of active agents in food systems journal April 2018
Molecular Context of Dopa Influences Adhesion of Mussel-Inspired Peptides journal August 2021
Driving Force for the Complexation of Charged Polypeptides journal January 2020
Complex Coacervation in Asymmetric Solutions of Polycation and Polyanion journal October 2019
Non-monotonic Effects of Intrinsic Stiffness and Concentration of Polyelectrolytes on the Electro-Sorption journal February 2021
Polyelectrolyte Complex Coacervation across a Broad Range of Charge Densities journal July 2021
Cooperative Multivalent Weak and Strong Interfacial Interactions Enhance the Adhesion of Mussel-Inspired Adhesives journal June 2021
Interfacial Structure and Tension of Polyelectrolyte Complex Coacervates journal November 2021
Electrostatic Correlations and Temperature-Dependent Dielectric Constant Can Model LCST in Polyelectrolyte Complex Coacervation journal December 2021
Complexation between Oppositely Charged Polyelectrolytes in Dilute Solution: Effects of Charge Asymmetry journal May 2022
Supernatant Phase in Polyelectrolyte Complex Coacervation: Cluster Formation, Binodal, and Nucleation journal May 2022
Effects of Electric Charge on the Interfacial Tension between Coexisting Aqueous Mixtures of Polyelectrolyte and Neutral Polymer journal September 2015
Criticality and Connectivity in Macromolecular Charge Complexation journal November 2016
Salting-Out and Salting-In of Polyelectrolyte Solutions: A Liquid-State Theory Study journal December 2016
Complex Coacervate of Weakly Charged Polyelectrolytes: Diagram of States journal May 2018
Salt Partitioning in Complex Coacervation of Symmetric Polyelectrolytes journal July 2018
Characterization of the Ultralow Interfacial Tension in Liquid–Liquid Phase Separated Polyelectrolyte Complex Coacervates by the Deformed Drop Retraction Method journal September 2019
Coacervate-Based Underwater Adhesives in Physiological Conditions journal June 2020
Multiphase Adhesive Coacervates Inspired by the Sandcastle Worm journal March 2011
Interfacial Energy of Polypeptide Complex Coacervates Measured via Capillary Adhesion journal May 2012
Polyelectrolyte Adsorption on Solid Surfaces: Theoretical Predictions and Experimental Measurements journal September 2013
Interfacial Tension of Complex Coacervated Mussel Adhesive Protein According to the Hofmeister Series journal January 2014
Adsorption of Polyelectrolytes at Oppositely Charged Surfaces journal April 2001
Charge Inversion by Flexible Polyelectrolytes on Flat Surfaces from Self-Consistent Field Calculations journal September 2005
Polymer solutions near an interface. Adsorption and depletion layers journal November 1981
Adsorption of Neutral Polymers:  Interpretation of the Numerical Self-Consistent Field Results journal January 1996
Interfacial Tension of Polyelectrolyte Complex Coacervate Phases journal May 2014
Gel phase formation in dilute triblock copolyelectrolyte complexes journal February 2017
U1 snRNP regulates cancer cell migration and invasion in vitro journal January 2020
Wetting regulates autophagy of phase-separated compartments and the cytosol journal January 2021
Interfacial tension between a complex coacervate phase and its coexisting aqueous phase journal January 2010
Complex coacervates of oppositely charged co-polypeptides inspired by the sandcastle worm glue journal January 2016
Explicit description of complexation between oppositely charged polyelectrolytes as an advantage of the random phase approximation over the scaling approach journal January 2017
Transfer matrix theory of polymer complex coacervation journal January 2017
Recent progress in the science of complex coacervation journal January 2020
Design principles for creating synthetic underwater adhesives journal January 2021
Mussel-inspired hydrogels as tough, self-adhesive and conductive bioelectronics: a review journal January 2021
Viscosity and interfacial properties in a mussel-inspired adhesive coacervate journal January 2010
Precipitation of oppositely charged polyelectrolytes in salt solutions journal January 2004
Entropy and enthalpy of polyelectrolyte complexation: Langevin dynamics simulations journal April 2006
Investigation of the interfacial tension of complex coacervates using field-theoretic simulations journal January 2012
Critical point wetting journal April 1977
Wetting transitions: First order or second order? journal December 1982
Wetting transitions. II. First order or second order? journal February 1983
Surface spinodals and extended wetting in fluids and polymer solutions journal July 1983
Thermodynamic perturbation theory of polymerization journal December 1987
Theoretical study of the prewetting transition in polymer blends journal March 1997
A self-consistent field study of the wetting transition in binary polymer blends journal January 1997
Electrostatic correlations and the polyelectrolyte self energy journal February 2017
Polyelectrolyte complex coacervation: Effects of concentration asymmetry journal October 2018
Interfacial properties of polymeric complex coacervates from simulation and theory journal October 2018
Thermodynamics of electrolyte solutions near charged surfaces: Constant surface charge vs constant surface potential journal May 2022
Combining paleo-data and modern exclosure experiments to assess the impact of megafauna extinctions on woody vegetation journal October 2015
Surface force measurements and simulations of mussel-derived peptide adhesives on wet organic surfaces journal March 2016
Microscopic density functional theory of wetting and drying of a solid substrate by an explicit solvent model of ionic solutions journal December 2009
Intracellular wetting mediates contacts between liquid compartments and membrane-bound organelles journal August 2021
Wetting transitions journal August 2001
Thermodynamics of wetting, prewetting and surface phase transitions with surface binding journal December 2021
Adhesion of mussel foot proteins to different substrate surfaces journal February 2013
Systematics of multilayer adsorption phenomena on attractive substrates journal November 1982
Polyelectrolyte adsorption: Chemical and electrostatic interactions journal December 2004
Complexation of oppositely charged polyelectrolytes: Effect of discrete charge distribution along the chain journal April 2010
Molecular Mass Dependence of Interfacial Tension in Complex Coacervation journal June 2021
Multicriticality of Wetting, Prewetting, and Surface Transitions journal November 1982
Some problems of the statistical physics of polymer chains with volume interaction journal July 1978
Development of Cosmetic Textiles Using Microencapsulation Technology journal November 2008
Anderson Acceleration for Fixed-Point Iterations journal January 2011
Polyelectrolyte Complex Coacervates: Recent Developments and New Frontiers journal November 2020
Mussel adhesion – essential footwork journal February 2017
Did Solid Surfaces Enable the Origin of Life? journal August 2021
Interfacial Behavior of Solid- and Liquid-like Polyelectrolyte Complexes as a Function of Charge Stoichiometry journal November 2021
Production and Evaluation of Antimicrobial Microcapsules with Essential Oils Using Complex Coacervation journal January 2019

Similar Records

Chemical specificity in polyzwitterion-polyelectrolyte coacervates: polycations vs polyanions
Journal Article · Wed Jun 05 20:00:00 EDT 2024 · European Polymer Journal · OSTI ID:2376380

Driving force and pathway in polyelectrolyte complex coacervation
Journal Article · Sun Aug 28 20:00:00 EDT 2022 · Proceedings of the National Academy of Sciences of the United States of America · OSTI ID:2469564