Molecular Design of Ordering Transitions in Block Copolymers

Molecular Design of Ordering Transitions in Block Copolymers PDF Author: Anne-Valérie Geneviève Ruzette
Publisher:
ISBN:
Category :
Languages : en
Pages : 218

Book Description


Block Copolymers

Block Copolymers PDF Author: Nikos Hadjichristidis
Publisher: John Wiley & Sons
ISBN: 0471461342
Category : Technology & Engineering
Languages : en
Pages : 445

Book Description
Polymers may be classified as either homopolymers, consisting of one single repeating unit, or copolymers, consisting of two or more distinct repeating units. Block copolymers contain long contiguous blocks of two or more repeating units in the same polymer chain. Covering one of the hottest topics in polymer chemistry, Block Copolymers provides a coherent overview of the synthetic routes, physical properties, and applications of block copolymers. This pioneering text provides not only a guideline for developing synthetic strategies for creating block copolymers with defined characteristics, but also a key to the relationship between the physical properties of block copolymers and the structure and dynamics of materials. Covering features of the chemistry and physics of block copolymers that are not found in comparable texts, Block Copolymers illustrates the structure-activity relationship of block copolymers and offers suggestions for the design of specific applications. Divided into five sections-Block Copolymers includes chapters on: * Block Copolymers by Chemical Modification of Precursor Polymers * Nonlinear Block Copolymers * Adsorption of Block Copolymers at Solid-Liquid Interfaces * Theory of Block Copolymer Segregation * Phase Transformation Kinetics * Block Copolymer Morphology * Block Copolymer Dynamics Polymer chemists, physicists, chemical engineers, and materials scientists, as well as graduate students in polymer science, will find Block Copolymers to be an invaluable text.

Polymer Materials

Polymer Materials PDF Author: Kwang-Sup Lee
Publisher: Springer Science & Business Media
ISBN: 3642136265
Category : Technology & Engineering
Languages : en
Pages : 242

Book Description
-On the Mechanisms Leading to Exfoliated Nanocomposites Prepared by Mixing By C. D. Han -Phase Behavior and Phase Transitions in AB- and ABA-type Microphase-Separated Block Copolymers By J. K. Kim, C. D. Han -New Class Materials of Organic–Inorganic Hybridized Nanocrystals/Nanoparticles, and Their Assembled Microand Nano-Structure Toward Photonics By H. Oikawa, T. Onodera, A. Masuhara, H. Kasai, H. Nakanishi -Poly(substituted Methylene) Synthesis: Construction of C–C Main Chain from One Carbon Unit By E. Ihara

Conformation-Dependent Design of Sequences in Copolymers I

Conformation-Dependent Design of Sequences in Copolymers I PDF Author: Alexei R. Khokhlov
Publisher: Springer Science & Business Media
ISBN: 9783540295136
Category : Technology & Engineering
Languages : en
Pages : 266

Book Description


Complex Macromolecular Architectures

Complex Macromolecular Architectures PDF Author: Nikos Hadjichristidis
Publisher: John Wiley & Sons
ISBN: 0470828277
Category : Science
Languages : en
Pages : 840

Book Description
The field of CMA (complex macromolecular architecture) stands at the cutting edge of materials science, and has been a locus of intense research activity in recent years. This book gives an extensive description of the synthesis, characterization, and self-assembly of recently-developed advanced architectural materials with a number of potential applications. The architectural polymers, including bio-conjugated hybrid polymers with poly(amino acid)s and gluco-polymers, star-branched and dendrimer-like hyperbranched polymers, cyclic polymers, dendrigraft polymers, rod-coil and helix-coil block copolymers, are introduced chapter by chapter in the book. In particular, the book also emphasizes the topic of synthetic breakthroughs by living/controlled polymerization since 2000. Furthermore, renowned authors contribute on special topics such as helical polyisocyanates, metallopolymers, stereospecific polymers, hydrogen-bonded supramolecular polymers, conjugated polymers, and polyrotaxanes, which have attracted considerable interest as novel polymer materials with potential future applications. In addition, recent advances in reactive blending achieved with well-defined end-functionalized polymers are discussed from an industrial point of view. Topics on polymer-based nanotechnologies, including self-assembled architectures and suprastructures, nano-structured materials and devices, nanofabrication, surface nanostructures, and their AFM imaging analysis of hetero-phased polymers are also included. Provides comprehensive coverage of recently developed advanced architectural materials Covers hot new areas such as: click chemistry; chain walking; polyhomologation; ADMET Edited by highly regarded scientists in the field Contains contributions from 26 leading experts from Europe, North America, and Asia Researchers in academia and industry specializing in polymer chemistry will find this book to be an ideal survey of the most recent advances in the area. The book is also suitable as supplementary reading for students enrolled in Polymer Synthetic Chemistry, Polymer Synthesis, Polymer Design, Advanced Polymer Chemistry, Soft Matter Science, and Materials Science courses. Color versions of selected figures can be found at www.wiley.com/go/hadjichristidis

Polymer Thermodynamics

Polymer Thermodynamics PDF Author: Sabine Enders
Publisher: Springer
ISBN: 3642176828
Category : Technology & Engineering
Languages : en
Pages : 434

Book Description
Making Flory-Huggins Practical: Thermodynamics of Polymer-Containing Mixtures, by B. A. Wolf * Aqueous Solutions of Polyelectrolytes: Vapor-Liquid Equilibrium and Some Related Properties, by G. Maurer, S. Lammertz, and L. Ninni Schäfer * Gas-Polymer Interactions: Key Thermodynamic Data and Thermophysical Properties, by J.-P. E. Grolier, and S. A.E. Boyer * Interfacial Tension in Binary Polymer Blends and the Effects of Copolymers as Emulsifying Agents, by S. H. Anastasiadis * Theory of Random Copolymer Fractionation in Columns, by Sabine Enders * Computer Simulations and Coarse-Grained Molecular Models Predicting the Equation of State of Polymer Solutions, by K. Binder, B. Mognetti, W. Paul, P. Virnau, and L. Yelash * Modeling of Polymer Phase Equilibria Using Equations of State, by G. Sadowski

Phase Behavior of Block Copolymers in Compressed CO2 and as Single Domain-layer, Nanolithographic Etch Resists for Sub-10 Nm Pattern Transfer

Phase Behavior of Block Copolymers in Compressed CO2 and as Single Domain-layer, Nanolithographic Etch Resists for Sub-10 Nm Pattern Transfer PDF Author: Curran Matthew Chandler
Publisher:
ISBN:
Category : Block copolymers
Languages : en
Pages : 159

Book Description
Diblock copolymers have many interesting properties, which first and foremost include their ability to self-assemble into various ordered, regularly spaced domains with nanometer-scale feature sizes. The work in this dissertation can be logically divided into two parts - the first and the majority of this work describes the phase behavior of certain block copolymer systems, and the second discusses real applications possible with block copolymer templates. Many compressible fluids have solvent-like properties dependent on fluid pressure and can be used as processing aids similar to liquid solvents. Here, compressed CO2 was shown to swell several thin homopolymer films, including polystyrene and polyisoprene, as measured by high pressure ellipsometry at elevated temperatures and pressures. The ellipsometric technique was modified to produce accurate data at these conditions through a custom pressure vessel design. The order-disorder transition (ODT) temperatures of several poly(styrene-b-isoprene) diblock copolymers were also investigated by static birefringence when dilated with compressed CO2. Sorption of CO2 in each copolymer resulted in significant depressions of the ODT temperature as a function of fluid pressure, and the data above was used to estimate the quantitative amount of solvent in each of the diblock copolymers. These depressions were not shown to follow dilution approximation, and showed interesting, exaggerated scaling of the ODT at near-bulk polymer concentrations. The phase behavior of block copolymer surfactants was studied when blended with polymer or small molecule additives capable of selective hydrogen bonds. This work used small angle X-ray scattering (SAXS) to identify several low molecular weight systems with strong phase separation and ordered domains as small as 2-3 nanometers upon blending. One blend of a commercially-available surfactant with a small molecule additive was further developed and showed promise as a thin-film pattern transfer template. In this scenario, block copolymer thin films on domain thick with self-assembled feature sizes of only 6-7 nm were used as plasma etch resists. Here the block copolymer's pattern was successfully transferred into the underlying SiO2 substrate using CF4-based reactive ion etching. The result was a parallel, cylindrical nanostructure etched into SiO2.

Molecular Design, Synthesis, Characterization, and Processing of Liquid Crystalline Diblock Copolymers

Molecular Design, Synthesis, Characterization, and Processing of Liquid Crystalline Diblock Copolymers PDF Author: Guoping Mao
Publisher:
ISBN:
Category :
Languages : en
Pages : 532

Book Description


The Effect of Film Thickness and Molecular Structure on Order and Disorder in Thin Films of Compositionally Asymmetric Block Copolymers

The Effect of Film Thickness and Molecular Structure on Order and Disorder in Thin Films of Compositionally Asymmetric Block Copolymers PDF Author: Vindhya Mishra
Publisher:
ISBN: 9781267020277
Category :
Languages : en
Pages : 258

Book Description
Through studies on block copolymers which exhibit an order-order transition in bulk, we found that that subtle differences in the packing frustration of the spherical and cylindrical phases as well as the higher configurational entropy of free chain ends at the surface can drive the equilibrium configuration in thin films away from the stable bulk structure. These studies have revealed unexpected consequences of confining block copolymers to thin films on their equilibrium behavior, identified some limitations of block copolymer assisted lithography and as well as elucidated ways to overcome them.

Constitutional Dynamic Chemistry

Constitutional Dynamic Chemistry PDF Author: Mihail Barboiu
Publisher: Springer Science & Business Media
ISBN: 3642283438
Category : Science
Languages : en
Pages : 325

Book Description
Constitutional Dynamic Chemistry: Bridge from Supramolecular Chemistry to Adaptive Chemistry, by Jean-Marie Lehn Multistate and Phase Change Selection in Constitutional Multivalent Systems, by Mihail Barboiu Dynamic Systemic Resolution, by Morakot Sakulsombat, Yan Zhang and Olof Ramström Dynamic Combinatorial Self-Replicating Systems, by Emilie Moulin and Nicolas Giuseppone DCC in the Development of Nucleic Acid Targeted and Nucleic Acid Inspired Structures, by Benjamin L. Miller Dynamic Nanoplatforms in Biosensor and Membrane Constitutional Systems, by Eugene Mahon, Teodor Aastrup und Mihail Barboiu Dynamic Assembly of Block-Copolymers, by D. Quémener, A. Deratani und S. Lecommandoux Dynamic Chemistry of Anion Recognition, by Radu Custelcean Supramolecular Naphthalenediimide Nanotubes, by Nandhini Ponnuswamy, Artur R. Stefankiewicz, Jeremy K. M. Sanders und G. Dan Pantoş Synthetic Molecular Machines and Polymer/Monomer Size Switches that Operate Through Dynamic and Non-Dynamic Covalent Changes, by Adrian-Mihail Stadler und Juan Ramírez Reversible Covalent Chemistries Compatible with the Principles of Constitutional Dynamic Chemistry: New Reactions to Create More Diversity, by Kamel Meguellati und Sylvain Ladame.