Theory Of Self Assembly Of Block Copolymers
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Theory Of Self Assembly Of Block Copolymers
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Author : Chien-Yueh Huang
language : en
Publisher:
Release Date : 1997
Theory Of Self Assembly Of Block Copolymers written by Chien-Yueh Huang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Block copolymers categories.
Theory Of Block Polymer Self Assembly
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Author : Benjamin R. Magruder
language : en
Publisher: American Chemical Society
Release Date : 2024-03-13
Theory Of Block Polymer Self Assembly written by Benjamin R. Magruder and has been published by American Chemical Society this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-03-13 with Science categories.
This primer introduces the theory of self-assembly of block polymers, most notably self-consistent field theory (SCFT). Block polymer self-assembly is a fascinating and highly interdisciplinary topic. This primer can be read at several levels, depending on what readers want to get out of it. Readers who want an overview of self-assembly in block polymer and what SCFT says about the process can read Chapters 1-3 and skip to Chapter 7 to see the open questions. If the reader is further interested in the output of SCFT calculations but not how those outputs are generated, they should read Chapter 6 as well. But if the reader wants to learn how to do the SCFT calculations themselves, Chapters 4 and 5 offer an accessible introduction to the theory and numerical methods, providing an excellent entry point into the literature. This primer includes data that the authors have computed using SCFT. All calculations use the open-source software package Polymer Self-Consistent Field (PSCF), developed by David Morse at the University of Minnesota. Take breaks from reading to watch ten “Insider Q&A” videos included throughout, which offer additional insight from experts in the field, such as An-Chang Shi, Chinedum O. Osuji, Frank S. Bates, Christopher M. Bates, Glenn H. Fredrickson, and Lisa Hall. Furthermore, this primer includes multiple features to aid and enhance readers’ learning. “That’s a Wrap” summarizes key concepts at the end of each chapter, while “Read These Next” suggests references that may interest further reading. A pop-up glossary ensures readers have definitions as needed throughout the primer.
Modeling Self Assembly And Structure Property Relationships In Block Copolymers
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Author : Manas Ravindra Shah
language : en
Publisher:
Release Date : 2009
Modeling Self Assembly And Structure Property Relationships In Block Copolymers written by Manas Ravindra Shah and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.
Block copolymers have been subject of tremendous research interest owing to their capability of undergoing self-assembly which allows them to tailor their electrical, optical, and mechanical properties. Statistical mechanics of flexible block copolymers is well understood. However, there are many unresolved issues with confinement of block copolymers as well as structure formation in block copolymers having non-flexible polymer blocks. We develop mean field theory models to address the issues arising in thermodynamics of such complex block copolymers. Also, we develop theoretical formalisms to understand the link between morphology and macroscopic properties in these block copolymers. We study the stability and ordering in thin films of flexible diblock copolymer in the presence of compressible solvent using a combined polymer mean field theory and lattice gas model for binary fluid mixtures. We utilize mean field theory model to understand the self-assembly behavior in side-chain liquid crystalline block copolymers which involve interplay between microphase separation and liquid crystalline ordering of side chain mesogenic units. We extend the field theoretic models for block copolymer to account for self-assembly in semicrystalline block copolymers. The semicrystalline chain is modeled as a semiflexible chain having non-bonded attractions between parallel bonds. We characterize the structure formation in such block copolymers as a function of the rigidity of the semicrystalline chain. Then we extend the formalism to study semicrystalline triblock and pentablock copolymers and evaluate bridging fractions in different sequences of semicrystalline multiblock copolymers. Rod-coil block copolymers have a flexible polymer covalently linked to rigid polymer. Such polymers have potential applications as organic LEDs and photovoltaic devices. We study the self-assembly of such block copolymer under confinement. To make these block copolymers viable as photovoltaic devices, we performed the photovoltaic modeling of devices based on self-assembly of block copolymers. We characterize the interplay between self-assembly and anisotropy of charge transport (arising due to rigid polymer chains) in determining the eventual photovoltaic properties.
Block Copolymers In Solution
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Author : Ian W. Hamley
language : en
Publisher: John Wiley & Sons
Release Date : 2005-12-13
Block Copolymers In Solution written by Ian W. Hamley and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-12-13 with Technology & Engineering categories.
This unique text discusses the solution self-assembly of block copolymers and covers all aspects from basic physical chemistry to applications in soft nanotechnology. Recent advances have enabled the preparation of new materials with novel self-assembling structures, functionality and responsiveness and there have also been concomitant advances in theory and modelling. The present text covers the principles of self-assembly in both dilute and concentrated solution, for example micellization and mesophase formation, etc., in chapters 2 and 3 respectively. Chapter 4 covers polyelectrolyte block copolymers - these materials are attracting significant attention from researchers and a solid basis for understanding their physical chemistry is emerging, and this is discussed. The next chapter discusses adsorption of block copolymers from solution at liquid and solid interfaces. The concluding chapter presents a discussion of selected applications, focussing on several important new concepts. The book is aimed at researchers in polymer science as well as industrial scientists involved in the polymer and coatings industries. It will also be of interest to scientists working in soft matter self-assembly and self-organizing polymers.
Self Assembly Of Block Copolymers Grafted Onto A Flat Substrate Recent Progress In Theory And Simulations Project Supported By The National Natural Science Foundation Of China Grant Nos 20990234 20925414 And 91227121 The Program For Changjiang Scholars And Innovative Research Team In University China Grant No Irt1257 The Programme Of Introducing Talents Of Discipline To Universities China And By The Tianhe No 1 China
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Author :
language : en
Publisher:
Release Date : 2015
Self Assembly Of Block Copolymers Grafted Onto A Flat Substrate Recent Progress In Theory And Simulations Project Supported By The National Natural Science Foundation Of China Grant Nos 20990234 20925414 And 91227121 The Program For Changjiang Scholars And Innovative Research Team In University China Grant No Irt1257 The Programme Of Introducing Talents Of Discipline To Universities China And By The Tianhe No 1 China written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
Abstract: Block copolymers are a class of soft matter that self-assemble to form ordered morphologies on the scale of nanometers, making them ideal materials for various applications. These applications directly depend on the shape and size of the self-assembled morphologies, and hence, a high degree of control over the self-assembly is desired. Grafting block copolymer chains onto a substrate to form copolymer brushes is a versatile method to fabricate functional surfaces. Such surfaces demonstrate a response to their environment, i.e., they change their surface topography in response to different external conditions. Furthermore, such surfaces may possess nanoscale patterns, which are important for some applications; however, such patterns may not form with spun-cast films under the same condition. In this review, we summarize the recent progress of the self-assembly of block copolymers grafted onto a flat substrate. We mainly concentrate on the self-assembled morphologies of end-grafted AB diblock copolymers, junction point-grafted AB diblock copolymers (i.e., Y-shaped brushes), and end-grafted ABA triblock copolymers. Special emphasis is placed on theoretical and simulation progress.
Introduction To Block Copolymer Physics
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Author : An-Chang Shi
language : en
Publisher: CRC Press
Release Date : 2019-01-15
Introduction To Block Copolymer Physics written by An-Chang Shi and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-01-15 with categories.
Block copolymers (macromolecules of two or more chemically distinct blocks) exhibit rich phase behavior, which has made them attractive for the design of novel polymer materials as well as for studies of self-assembly. This book provides a coherent, single source for the theoretical understanding of block copolymer self-assembly, and an introduction to the theory of phases and phase transitions in soft matter. It emphasizes self-consistent field theory, which provides a semi-quantitative description of the phase behavior of block copolymer melts and blends, while also surveying other approaches. The author also discusses technological applications and numerical methods.
Amphiphilic Block Copolymers
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Author : P. Alexandridis
language : en
Publisher: Elsevier
Release Date : 2000-10-18
Amphiphilic Block Copolymers written by P. Alexandridis and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-10-18 with Science categories.
It is the belief of the editors of this book that the recognition of block copolymers as being amphiphilic molecules and sharing common features with other well-studied amphiphiles will prove beneficial to both the surfactant and the polymer communities. An aim of this book is to bridge the two communities and cross-fertilise the different fields. To this end, leading researchers in the field of amphiphilic block copolymer self-assembly, some having a background in surfactant chemistry, and others with polymer physics roots, have agreed to join forces and contribute to this book.The book consists of four entities. The first part discusses theoretical considerations behind the block copolymer self-assembly in solution and in the melt. The second part provides case studies of self-assembly in different classes of block copolymers (e.g., polyethers, polyelectrolytes) and in different environments (e.g., in water, in non-aqueous solvents, or in the absence of solvents). The third part presents experimental tools, ranging from static (e.g., small angle neutron scattering) to dynamic (e.g., rheology), which can prove valuable in the characterization of block copolymer self-assemblies. The fourth part offers a sampling of current applications of block copolymers in, e.g., formulations, pharmaceutics, and separations, applications which are based on the unique self-assembly properties of block copolymers.
Block Copolymer Self Assembly A Computational Approach Towards Novel Morphologies
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Author : Karim Raafat Gadelrab
language : en
Publisher:
Release Date : 2019
Block Copolymer Self Assembly A Computational Approach Towards Novel Morphologies written by Karim Raafat Gadelrab and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.
Spontaneous self-assembly of materials is a phenomenon exhibited by different molecular systems. Among many, Block copolymers (BCPs) proved to be particularly interesting due to their ability to microphase separate into periodic domains. Nonetheless, the rising need for arbitrary, complex, 3D nanoscale morphology shows that what is commonly achievable is quite limited. Expanding the range of BCPs morphologies could be attained through the implementation of a host of strategies that could be used concurrently. Using directed self-assembly (DSA), a sphere forming BCP was assembled in a randomly displaced post template to study system resilience towards defect creation. Template shear-like distortion seemed to govern local defect generation. Defect clusters with symmetries compatible with that of the BCP showed enhanced stability. Using 44 and 32434 Archimedean tiling templates that are incompatible with BCP six-fold symmetry created low symmetry patterns with an emergent behavior dependent on pattern size and shape. A variation of DSA is studied using modulated substrates. Layer-by-layer deposition of cylinder forming BCPs was investigated. Self-consistent field theory (SCFT) and strong segregation theory SST were employed to provide the understanding and the conditions under which particular orientations of consecutive layers were produced. Furthermore, deep functionalized trenches were employed to create vertically standing high-[chi] BCP structures. Changing annealing conditions for a self-assembled lamellar structure evolved the assembled pattern to a tubular morphology that is non-native to diblock copolymers. A rather fundamental but challenging strategy to go beyond the standard motifs common to BCPs is to synthesize multiblock molecules with an expanded design space. Triblock copolymers produced bilayer perforated lamellar morphology. SCFT analysis showed a large window of stability of such structures in thin films. In addition, a model for bottlebrush BCPs (BBCPs) was constructed to investigate the characteristics of BBCPs self-assembly. Pre-stacked diblock sidechains showed improved microphase separation while providing domain spacing relevant to lithography applications. A rich phase diagram was constructed at different block concentrations. The ability to explore new strategies to discover potential equilibrium morphologies in BCPs is supported by strong numerical modeling and simulations efforts. Accelerating SCFT performance would greatly benefit BCP phase discovery. Preliminary work discussed the first attempt to Neural Network (NN) assisted SCFT. The use of NN was able to cut on the required calculations steps to reach equilibrium morphology, demonstrating accelerated calculation, and escaping trapped states, with no effect on final structure.
Self Organized Nanostructures Of Amphiphilic Block Copolymers I
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Author : Axel H. E. Müller
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-08-12
Self Organized Nanostructures Of Amphiphilic Block Copolymers I written by Axel H. E. Müller and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-08-12 with Technology & Engineering categories.
Conformations and Solution Properties of Star-Branched Polyelectrolytes, by Oleg V. Borisov, Ekaterina B. Zhulina, Frans A. M. Leermakers, Matthias Ballauff and Axel H. E. Müller; Self-Assembled Structures of Amphiphilic Ionic Block Copolymers: Theory, Self-Consistent Field Modeling and Experiment, by Oleg V. Borisov, Ekaternia B. Zhulina, Frans A. M. Leermakers and Axel H. E. Müller; Interpolyelectrolyte Complexes Based on Polyionic Species of Branched Topology, by Dmitry V. Pergushov, Oleg V. Borisov, Alexander B. Zezin and Axel H. E. Müller; Co-assembly of Charged Copolymers as a Novel Pathway Towards Reversible Janus Micelles, by Ilja K. Voets, Frans A. Leermakers, Arie de Keizer, Marat Charlaganov and Martien A. Cohen Stuart; Fluorescence Spectroscopy as a Tool for Investigating the Self-Organized Polyelectrolyte Systems, by Karel Procházka, Zuzana Limpouchová, Filip Uhlík, Peter Košovan, Pavel Matejícek, Miroslav Štepánek, Mariusz Uchman, Jitka Kuldová, Radek Šachl, Jana Humpolícková, and M. Hof
Self Assembling Systems
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Author : Li-Tang Yan
language : en
Publisher: John Wiley & Sons
Release Date : 2016-10-06
Self Assembling Systems written by Li-Tang Yan and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-10-06 with Science categories.
Provides comprehensive knowledge on concepts, theoretical methods and state-of-the-art computational techniques for the simulation of self-assembling systems Looks at the field of self-assembly from a theoretical perspective Highlights the importance of theoretical studies and tailored computer simulations to support the design of new self-assembling materials with useful properties Divided into three parts covering the basic principles of self-assembly, methodology, and emerging topics