DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Investigating microstructure evolution in block copolymer membranes

Journal Article · · Journal of Chemical Physics
DOI: https://doi.org/10.1063/5.0188196 · OSTI ID:2370093

Block copolymer self-assembly in conjunction with nonsolvent-induced phase separation (SNIPS) has been increasingly leveraged to fabricate integral-asymmetric membranes. The large number of formulation and processing parameters associated with SNIPS, however, has prevented the reliable construction of high performance membranes. In this study, we apply dynamical self-consistent field theory to model the SNIPS process and investigate the effect of various parameters on the membrane morphology: solvent selectivity, nonsolvent selectivity, initial film composition, and glass transition composition. We examine how solvent selectivity and concentration of polymers in the film impact the structure of micelles that connect to form the membrane matrix. In particular, we find that preserving the order in the surface layer and forming a connection between the supporting and surface layer are nontrivial and sensitive to each parameter studied. Furthermore, the effect of each parameter is discussed, and suggestions are made for successfully fabricating viable block copolymer membranes.

Research Organization:
University of California, Santa Barbara, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
SC0019272; AC02-05CH11231
OSTI ID:
2370093
Journal Information:
Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 7 Vol. 160; ISSN 0021-9606
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (51)

Nanoporous membranes generated from self-assembled block polymer precursors:Quo Vadis? journal November 2014
Energy Efficient Seawater Desalination: Strategies and Opportunities journal March 2021
Self-Assembled Block Copolymer Aggregates: From Micelles to Vesicles and their Biological Applications journal February 2009
Isoporous Block Copolymer Membranes journal November 2014
Preparation of block copolymer vesicles in solution journal January 2004
Water purification by membranes: The role of polymer science journal June 2010
Aqueous quenched asymmetric polysulfone membranes prepared by dry/wet phase separation journal June 1993
Theoretical analysis of pore size distribution effects on membrane transport journal July 1993
Preparation of defect-free asymmetric gas separation membranes with dihydrolevoglucosenone (CyreneTM) as a greener polar aprotic solvent journal February 2022
Defect-free asymmetric Matrimid® gas separation membranes using dihydrolevoglucosenone (Cyrene™) as a greener polar aprotic solvent than traditional solvents journal February 2024
Time-resolved GISAXS and cryo-microscopy characterization of block copolymer membrane formation journal March 2014
A review of polymeric membranes and processes for potable water reuse journal June 2018
Calculation of noise distribution in mesoscopic dynamics models for phase separation of multicomponent complex fluids journal December 1996
Polymeric membrane formation by wet-phase separation; turbidity and shrinkage phenomena as evidence for the elementary processes journal December 2000
Nonequilibrium Processes in Polymer Membrane Formation: Theory and Experiment journal May 2021
Structural Evolution of Ternary Amphiphilic Block Copolymer Solvent Systems for Phase Inversion Membrane Formation journal June 2020
Quantitative Comparison of Field-Update Algorithms for Polymer SCFT and FTS journal October 2021
Simulation of Solvent Evaporation from a Diblock Copolymer Film: Orientation of the Cylindrical Mesophase journal August 2022
Using Grazing-Incidence Small-Angle Neutron Scattering to Study the Orientation of Block Copolymer Morphologies in Thin Films journal March 2023
Vertical Domain Orientation in Cylinder-Forming Diblock Copolymer Films upon Solvent Vapor Annealing journal December 2015
Block Copolymer Membranes for Aqueous Solution Applications journal March 2016
Self-Assembly in Block Copolymer Thin Films upon Solvent Evaporation: A Simulation Study journal May 2017
Simulation of Membrane Fabrication via Solvent Evaporation and Nonsolvent-Induced Phase Separation journal May 2023
Mechanisms of Asymmetric Membrane Formation in Nonsolvent-Induced Phase Separation journal October 2020
Modeling Microstructure Formation in Block Copolymer Membranes Using Dynamical Self-Consistent Field Theory journal December 2022
Marangoni Flows during Nonsolvent Induced Phase Separation journal April 2018
Next-Generation Ultrafiltration Membranes Enabled by Block Polymers journal December 2020
Multiscale Modeling of Grain-Boundary Motion in Cylinder-Forming Block Copolymers journal October 2022
Preparation and Characterization of Membranes Formed by Nonsolvent Induced Phase Separation: A Review journal April 2011
Morphological Phase Diagram for a Ternary System of Block Copolymer PS 310 - b -PAA 52 /Dioxane/H 2 O journal October 1999
Solvent Effect on the Glass Transition Temperature of Syndiotactic Polystyrene Viewed from Time-Resolved Measurements of Infrared Spectra at the Various Temperatures and Its Simulation by Molecular Dynamics Calculation journal December 2003
Morphology of Evaporated Multiblock Copolymer Membranes Studied by Molecular Dynamics Simulations journal November 2004
Topological Paths and Transient Morphologies during Formation of Mesoporous Block Copolymer Membranes journal August 2014
Adsorption Dynamics. Extension of Self-Consistent Field Theory to Dynamical Problems journal May 1997
Formation of Interfaces in Incompatible Polymer Blends:  A Dynamical Mean Field Study journal June 1999
Block Copolymer Self Assembly during Rapid Solvent Evaporation: Insights into Cylinder Growth and Stability journal December 2013
Materials for next-generation desalination and water purification membranes journal April 2016
Asymmetric superstructure formed in a block copolymer via phase separation journal November 2007
Self-assembly of block copolymers journal January 2012
Self-assembly in casting solutions of block copolymer membranes journal January 2013
Design of block copolymer membranes using segregation strength trend lines journal January 2016
A multi-fluid model for microstructure formation in polymer membranes journal January 2017
Mass-transfer driven spinodal decomposition in a ternary polymer solution journal January 2019
Theory of inhomogeneous polymers: Fundamentals of the Gaussian random‐walk model journal February 1975
Dynamic density functional theory for microphase separation kinetics of block copolymer melts journal December 1993
A multi-species exchange model for fully fluctuating polymer field theory simulations journal November 2014
Efficient field-theoretic simulation of polymer solutions journal December 2014
The Future of Seawater Desalination: Energy, Technology, and the Environment journal August 2011
Numerical Solution of Polymer Self-Consistent Field Theory journal January 2004
Resource Recovery from Wastewater by Biological Technologies: Opportunities, Challenges, and Prospects journal January 2017
Water Supply and Water Scarcity journal August 2020