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Author: Samuel Mospens Nicaise Publisher: ISBN: Category : Languages : en Pages : 96
Book Description
This thesis discusses the investigation of various aspects of templated self-assembly of block copolymer (BCP) thin films for nanofeature fabrication. Two chapters outline the research of a combined physical and chemical templating method with two BCPs. The method was not effective in templating poly(styrene-block-methyl methacrylate) (PS-b-PMMA) BCP because of limited template wettability. The method effectively templated poly(octofluro pentamethacrylate-block-hydroxystyrene) (OFPMA-b-HSM) BCP to fabricate orthogonally-directed lamellar microdomains and nanohole-mesh arrays. Chapter 4 discusses the achievement of a mean overlay accuracy of 52 nm and 0' for two electron-beam-based lithographic features as a result of an investigated overlay process. Lastly, the thesis reports the fabrication of a wide-range of nanofeatures - from two-dimensional and three dimensional nanoholes arrays to elliptical and cylindrical meshes - by the sacrificial-post templating method with poly(styreneblock- dimethylsiloxane) (PS-b-PDMS) BCP.
Author: Samuel Mospens Nicaise Publisher: ISBN: Category : Languages : en Pages : 96
Book Description
This thesis discusses the investigation of various aspects of templated self-assembly of block copolymer (BCP) thin films for nanofeature fabrication. Two chapters outline the research of a combined physical and chemical templating method with two BCPs. The method was not effective in templating poly(styrene-block-methyl methacrylate) (PS-b-PMMA) BCP because of limited template wettability. The method effectively templated poly(octofluro pentamethacrylate-block-hydroxystyrene) (OFPMA-b-HSM) BCP to fabricate orthogonally-directed lamellar microdomains and nanohole-mesh arrays. Chapter 4 discusses the achievement of a mean overlay accuracy of 52 nm and 0' for two electron-beam-based lithographic features as a result of an investigated overlay process. Lastly, the thesis reports the fabrication of a wide-range of nanofeatures - from two-dimensional and three dimensional nanoholes arrays to elliptical and cylindrical meshes - by the sacrificial-post templating method with poly(styreneblock- dimethylsiloxane) (PS-b-PDMS) BCP.
Author: Volker Abetz Publisher: Springer Science & Business Media ISBN: 9783540269021 Category : Technology & Engineering Languages : en Pages : 272
Book Description
. A.J. M ller, V. Balsamo, M.L. Arnal: Nucleation and Crystallization in Diblock and Triblock Copolymers.- 2 J.-F. Gohy: Block Copolymer Micelles.- 3 M.A. Hillmyer: Nanoporous Materials from Block Copolymer Precursors.- 4 M. Li, C. Coenjarts, C.K. Ober: Patternable Block Copolymers.-
Author: Ian W. Hamley Publisher: John Wiley & Sons ISBN: 0470843357 Category : Technology & Engineering Languages : en Pages : 388
Book Description
Focuses on recent advances in research on block copolymers, covering chemistry (synthesis), physics (phase behaviors, rheology, modeling), and applications (melts and solutions). Written by a team of internationally respected scientists from industry and academia, this text compiles and reviews the expanse of research that has taken place over the last five years into one accessible resource. Ian Hamley is the world-leading scientist in the field of block copolymer research Presents the recent advances in the area, covering chemistry, physics and applications. Provides a broad coverage from synthesis to fundamental physics through to applications Examines the potential of block copolymers in nanotechnology as self-assembling soft materials
Author: Publisher: Newnes ISBN: 0080878628 Category : Technology & Engineering Languages : en Pages : 7752
Book Description
The progress in polymer science is revealed in the chapters of Polymer Science: A Comprehensive Reference, Ten Volume Set. In Volume 1, this is reflected in the improved understanding of the properties of polymers in solution, in bulk and in confined situations such as in thin films. Volume 2 addresses new characterization techniques, such as high resolution optical microscopy, scanning probe microscopy and other procedures for surface and interface characterization. Volume 3 presents the great progress achieved in precise synthetic polymerization techniques for vinyl monomers to control macromolecular architecture: the development of metallocene and post-metallocene catalysis for olefin polymerization, new ionic polymerization procedures, and atom transfer radical polymerization, nitroxide mediated polymerization, and reversible addition-fragmentation chain transfer systems as the most often used controlled/living radical polymerization methods. Volume 4 is devoted to kinetics, mechanisms and applications of ring opening polymerization of heterocyclic monomers and cycloolefins (ROMP), as well as to various less common polymerization techniques. Polycondensation and non-chain polymerizations, including dendrimer synthesis and various "click" procedures, are covered in Volume 5. Volume 6 focuses on several aspects of controlled macromolecular architectures and soft nano-objects including hybrids and bioconjugates. Many of the achievements would have not been possible without new characterization techniques like AFM that allowed direct imaging of single molecules and nano-objects with a precision available only recently. An entirely new aspect in polymer science is based on the combination of bottom-up methods such as polymer synthesis and molecularly programmed self-assembly with top-down structuring such as lithography and surface templating, as presented in Volume 7. It encompasses polymer and nanoparticle assembly in bulk and under confined conditions or influenced by an external field, including thin films, inorganic-organic hybrids, or nanofibers. Volume 8 expands these concepts focusing on applications in advanced technologies, e.g. in electronic industry and centers on combination with top down approach and functional properties like conductivity. Another type of functionality that is of rapidly increasing importance in polymer science is introduced in volume 9. It deals with various aspects of polymers in biology and medicine, including the response of living cells and tissue to the contact with biofunctional particles and surfaces. The last volume is devoted to the scope and potential provided by environmentally benign and green polymers, as well as energy-related polymers. They discuss new technologies needed for a sustainable economy in our world of limited resources. Provides broad and in-depth coverage of all aspects of polymer science from synthesis/polymerization, properties, and characterization methods and techniques to nanostructures, sustainability and energy, and biomedical uses of polymers Provides a definitive source for those entering or researching in this area by integrating the multidisciplinary aspects of the science into one unique, up-to-date reference work Electronic version has complete cross-referencing and multi-media components Volume editors are world experts in their field (including a Nobel Prize winner)
Author: Johannes Karl Fink Publisher: John Wiley & Sons ISBN: 1119593131 Category : Science Languages : en Pages : 279
Book Description
The text focuses on the basic issues and also the literature of the past decade. The book provides a broad overview of functional synthetic polymers. Special issues in the text are: Surface functionalization supramolecular polymers, shape memory polymers, foldable polymers, functionalized biopolymers, supercapacitors, photovoltaic issues, lithography, cleaning methods, such as recovery of gold ions olefin/paraffin, separation by polymeric membranes, ultrafiltration membranes, and other related topics.
Author: Ian W. Hamley Publisher: Oxford University Press on Demand ISBN: 9780198502180 Category : Science Languages : en Pages : 424
Book Description
This comprehensive and systematic text is the first of its kind to deal with the fundamental physics underlying the remarkable structural and dynamical properties of block copolymers. It provides the polymer scientist and technologist with a firm grounding in the principles underlying the wide applications of these important materials. It also highlights the intrinsically fascinating properties of block copolymers, such as nanoscale self-assembly in bulk and two-dimensions. The first textof its kind on the subject since the mid-1980s, this book stands alone - previous texts have focused on the chemical and material properties of block copolymers. During the last decade, there have been major developments in the field, and these experimental and theoretical advances are discussed in depth. Topics covered include: the thermodynamics and dynamics of block copolymer melts, block copolymers in dilute, semidilute and concentrated solutions, the structure of crystalline block copolymers and block copolymers in blends with other polymers. This informative book is essential to the polymer physics and materials science researcher in industry and academia, and postgraduates in related fields. Final year undergraduate students in chemistry, physics and materials science will also find this book useful as a reference text.
Author: Publisher: ScholarlyEditions ISBN: 149010691X Category : Science Languages : en Pages : 1203
Book Description
Issues in General Science and Scientific Theory and Method: 2013 Edition is a ScholarlyEditions™ book that delivers timely, authoritative, and comprehensive information about Mixed Methods Research. The editors have built Issues in General Science and Scientific Theory and Method: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Mixed Methods Research in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in General Science and Scientific Theory and Method: 2013 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Author: Biswajit Sarkar Publisher: ISBN: Category : Languages : en Pages : 213
Book Description
Dispersions of nanoparticles in polymer matrices form hybrid materials that can exhibit superior structural and functional properties and find applications in e. g. thermo-plastics, electronics, polymer electrolytes, catalysis, paint formulations, and drug delivery. Control over the particle location and orientation in the polymeric matrices are essential in order to realize the enhanced mechanical, electrical, and optical properties of the nanohybrids. Block copolymers, composed of two or more different monomers, are promising for controlling particle location and orientation because of their ability to organize into ordered nanostructures. Fundamental questions pertaining to nanoparticle-polymer interfacial interactions remain open and formulate the objectives of our investigation. Particle-polymer enthalpic and entropic interactions control the nanoparticle dispersion in polymer matrices. Synthetic chemical methods for modifying the particle surface in order to control polymer-particle interactions are involved and large scale production is not possible. In the current approach, a physical method is employed to control polymer-particle interactions. The use of commercially available solvents is found to be effective in modifying particle-polymer interfacial interactions. The approach is applicable to a wide range of particle-polymer systems and can thereby enable large scale processing of polymer nanohybrids. The systems of silica nanoparticles dispersed in long-range or short-range self-assembled structures of aqueous poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO) block copolymers (Pluronics) is considered here. The effect of various parameters such as the presence of organic solvents, pH, and particle size on the block copolymer organization and the ensuing particle-polymer interactions are investigated. Favorable surface interactions between the deprotonated silica nanoparticle and PEO-rich domain facilitate particle incorporation in the cylindrical lyotropic mesophase formed by hydrated PEO-PPO-PEO block copolymer. The amount of nanoparticle dispersed is limited to 10 wt% due to restrictions posed by a combination of thermodynamics and geometry. Incorporation of deprotonated nanoparticles by replacing equal mass of water did not affect the lattice parameter of the hexagonal lyotropic liquid crystalline structures formed by hydrated PEO-PPO-PEO block copolymer. The incorporation of protonated NPs resulted in an increase in the lattice parameter due to stronger nanoparticle-polymer enthalpic interactions. Two dimensional swelling exponent (d ~ Φpolymer-0. 65) suggests that deprotonated nanoparticles are located inside the PEO-rich domains, away from PEO-PPO interfaces. The presence of organic solvents screen the effect of protonated NPs on the lattice parameter of the hexagonal lyotropic liquid crystalline structures formed by hydrated PEO-PPO-PEO block copolymer.
Author: Ian W. Hamley Publisher: John Wiley & Sons ISBN: 0470093935 Category : Technology & Engineering Languages : en Pages : 380
Book Description
Focuses on recent advances in research on block copolymers, covering chemistry (synthesis), physics (phase behaviors, rheology, modeling), and applications (melts and solutions). Written by a team of internationally respected scientists from industry and academia, this text compiles and reviews the expanse of research that has taken place over the last five years into one accessible resource. Ian Hamley is the world-leading scientist in the field of block copolymer research Presents the recent advances in the area, covering chemistry, physics and applications. Provides a broad coverage from synthesis to fundamental physics through to applications Examines the potential of block copolymers in nanotechnology as self-assembling soft materials
Author: Samuel Mospens Nicaise
Author: Samuel Mospens Nicaise
Author: Volker Abetz
Author: Ian W. Hamley
Author: 
Author: Johannes Karl Fink
Author: Ian W. Hamley
Author: 
Author: Biswajit Sarkar
Author: Ian W. Hamley
Author: Volker Abetz