[PDF] Toward Metallo Supramolecular Polymers And Gels eBook

Author : Masayoshi Higuchi
Publisher : Springer Nature
Page : 89 pages
File Size : 37,68 MB
Release : 2019-11-12
Category : Technology & Engineering
ISBN : 4431568913

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This book introduces the synthesis, electrochemical and photochemical properties, and device applications of metallo-supramolecular polymers, new kinds of polymers synthesized by the complexation of metal ions and organic ditopic ligands. Their electrochemical and photochemical properties are also interesting and much different from conventional organic polymers. The properties come from the electronic intra-chain interaction between the metal ions and the ligands in the polymer chain. In this book, for example, the electrochromism that the Fe(II)-based metallo-supramolecular polymer exhibits is described: the blue color of the polymer film disappears by the electrochemical oxidation of Fe(II) ions to Fe(III) and the colorless film becomes blue again by the electrochemical reduction of Fe(III) to Fe(II). The electrochromism is explained by the disappearance/appearance of the metal-to-ligand charge transfer absorption. The electrochromic properties are applicable to display devices such as electronic paper and smart windows.

Author : Ulrich S. Schubert
Publisher : John Wiley & Sons
Page : 544 pages
File Size : 40,75 MB
Release : 2021-06-28
Category : Science
ISBN : 3527333568

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Explore modern characterization methods and new applications in this modern overview of supramolecular polymer chemistry Supramolecular Polymers and Assemblies: From Synthesis to Properties and Applications delivers a superlative summary and description of general concepts and definitions in the field. The book offers informative and accessible treatments of crucial concepts like metal-containing compounds, hydrogen bonding, ionic interactions, pi-pi stacking, and more. Characterization remains a primary focus of the book throughout, making it extremely useful for practitioners in the field. Emphasis is also placed on metallo-supramolecular polymers and materials which have found applications in areas like smart or intelligent materials and systems with special photochemical and photophysical properties, like LEDs and solar cells. Applications, including self-healing materials, opto-electronics, sensing, and catalysis are all discussed as well. The book details many of the exciting developments in the field of supramolecular chemistry that have occurred since the 1987 Nobel Prize was awarded to pioneers in this rapidly developing field. Readers will also benefit from the inclusion of: A thorough introduction to supramolecular assemblies based on ionic interactions Explorations of supramolecular polymers based on hydrogen-bonding interactions, metal-to-ligand interactions, p-Electronic interactions, crown-ether recognition, cucurbiturils, and host-guest chemistry of calixarenes A discussion of cyclodextrins in the field of supramolecular polymers Examinations of supramolecular polymers based on the host-guest chemistry of pillarenes, and those formed by orthogonal non-covalent interactions A treatment of the characterization of supramolecular polymers Supramolecular Polymers and Assemblies: From Synthesis to Properties and Applications will earn a place in the libraries of researchers and practitioners of the material science, as well as polymer chemists seeding a one-stop reference for supramolecular polymers.

Author :
Publisher :
Page : 20 pages
File Size : 14,82 MB
Release : 2010
Category :
ISBN :

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The development of materials with combined mechanical properties remains a significant challenge in polymer synthesis. The preparation of such materials could potentially impact a wide range of Army applications. In this work, bio-inspired metallo- supramolecular polymers were designed, synthesized, and characterized. We anticipate these polymers will display enhanced mechanical properties due to the presence of intermediate strength metal-ligand bonds present in the polymer backbone, which forms a compacted, modular molecular topology. The 2,6-bisbenzimidazolylpyridine ligand was prepared and incorporated into a model polymer backbone via thiol-ene click chemistry. The resulting polymer was thoroughly characterized by 1H Nuclear Magnetic Resonance (NMR), gel permeation chromatography (GPC), and differential scanning calorimetry (DSC). Binding of the ligand with Zn2+ and Co2+ was studied using ultraviolet/visible (UV/Vis) spectroscopy, which demonstrated a 2:1 ligand-to-metal ratio.

Author : Stefan Kubik
Publisher : John Wiley & Sons
Page : 586 pages
File Size : 45,69 MB
Release : 2019-09-03
Category : Science
ISBN : 3527344675

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Provides deep insight into the concepts and recent developments in the area of supramolecular chemistry in water Written by experts in their respective field, this comprehensive reference covers various aspects of supramolecular chemistry in water?from fundamental aspects to applications. It provides readers with a basic introduction to the current understanding of the properties of water and how they influence molecular recognition, and examines the different receptor types available in water and the types of substrates that can be bound. It also looks at areas to where they can be applied, such as materials, optical sensing, medicinal imaging, and catalysis. Supramolecular Chemistry in Water offers five major sections that address important topics like water properties, molecular recognition, association and aggregation phenomena, optical detection and imaging, and supramolecular catalysis. It covers chemistry and physical chemistry of water; water-mediated molecular recognition; peptide and protein receptors; nucleotide receptors; carbohydrate receptors; and ion receptors. The book also teaches readers all about coordination compounds; self-assembled polymers and gels; foldamers; vesicles and micelles; and surface-modified nanoparticles. In addition, it provides in-depth information on indicators and optical probes, as well as probes for medical imaging. -Covers, in a timely manner, an emerging area in chemistry that is growing more important every day -Addresses topics such as molecular recognition, aggregation, catalysis, and more -Offers comprehensive coverage of everything from fundamental aspects of supramolecular chemistry in water to its applications -Edited by one of the leading international scientists in the field Supramolecular Chemistry in Water is a one-stop-resource for all polymer chemists, catalytic chemists, biochemists, water chemists, and physical chemists involved in this growing area of research.

Author : Vincent Rotello
Publisher : John Wiley & Sons
Page : 492 pages
File Size : 10,34 MB
Release : 2008-09-15
Category : Science
ISBN : 0470384042

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State-of-the-art techniques for tapping the vast potential of polymers The use of specific non-covalent interactions to control polymer structure and properties is a rapidly emerging field with applications in diverse disciplines. Molecular Recognition and Polymers covers the fundamental aspects and applications of molecular recognition—in the creation of novel polymeric materials for use in drug delivery, sensors, tissue engineering, molecular imprinting, and other areas. This reference begins by explaining the fundamentals of supramolecular polymers; it progresses to cover polymer formation and self-assembly with a wide variety of examples, and then includes discussions of biomolecular recognition using polymers. With chapters contributed by the foremost experts in their fields, this resource: Provides an integrated resource for supramolecular chemistry, polymer science, and interfacial science Covers advanced, state-of-the-art techniques used in the design and characterization of non-covalent interactions in polymers Illustrates how to tailor the properties of polymeric materials for various applications Stand-alone chapters address specific applications independently for easy reference. This is a premier resource for graduate students and researchers in polymer chemistry, supramolecular chemistry, materials science, and physical organic chemistry.

Author : Nicolas Giuseppone
Publisher : John Wiley & Sons
Page : 448 pages
File Size : 11,18 MB
Release : 2021-03-30
Category : Science
ISBN : 3527821988

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A must-have resource that covers everything from out-of-equilibrium chemical systems and materials to dissipative self-assemblies Out-of-Equilibrium Supramolecular Systems and Materials presents a comprehensive overview of the synthetic approaches that use supramolecular bonds in various out-of-thermodynamic equilibrium situations. With contributions from noted experts on the topic, the text contains information on the design of dissipative self-assemblies that maintain their structures when fueled by an external source of energy. The contributors also examine molecules and nanoscale objects and materials that can produce mechanical work based on molecular machines. Additionally, the book explores non-equilibrium supramolecular polymers that can be trapped in kinetically stable states, as well as out-of-equilibrium chemical systems and oscillators that are important to understand the emergence of complex behaviors and, in particular, the origin of life. This important book: Offers comprehensive coverage of fields from design of dissipative self-assemblies to non-equilibrium supramolecular polymers Presents information on a highly emerging and interdisciplinary topic Includes contributions from internationally renowned scientists Written for chemists, physical chemists, biochemists, material scientists, Out-of-Equilibrium Supramolecular Systems and Materials is an indispensable resource written by top scientists in the field.

Author : Maureen Jean Lobo
Publisher :
Page : 418 pages
File Size : 35,23 MB
Release : 2018
Category :
ISBN :

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The use of metal-induced conformational changes in pyridine-hydrazone crosslinkers to control the volumes of gels was complicated by the adaptive metallosupramolecular behaviour of the ligands. The combination of pyridine-hydrazone ligands with closed-shell Pb(II), Zn(II), Ag(I), Cu(I) and d9 Cu(II) metal ions produced complexes that depended not only on the characteristics of the ligands and metal ions but also on the external conditions.A mixture of techniques including NMR spectroscopy, ESI mass spectrometry, and X-ray crystallography was used to characterise the metallosupramolecular structures in the solution and solid states and to determine any adaptive behaviour. Chapters 1 and 2 provided an introduction to the metallosupramolecular chemistry and synthesis of pyridine-hydrazone crosslinkers.