Hierarchically Structured Conjugated Polymers Via Supramolecular Self-assembly PDF Download

Author: Eike Jahnke
Publisher:
ISBN:
Category :
Languages : en
Pages : 329

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Author: Bruno Pignataro
Publisher: John Wiley & Sons
ISBN: 9783527628919
Category : Science
Languages : en
Pages : 464

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Providing a glimpse into the future, the young scientists contributing here were considered to be the most important for tomorrow's chemistry and materials science. They present the state of the art in their particular fields of research, with topics ranging from new synthetic pathways and nanotechnology to green chemistry. Of major interest to organic chemists, materials scientists and biochemists.

Author: Matti Knaapila
Publisher: World Scientific
ISBN: 9813225777
Category : Science
Languages : en
Pages : 204

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Book Description
This book identifies modern topics and current trends of structural and soft matter aspects of conjugated polymers and oligomers. Each chapter recognizes an active research line where structural perspective dominates research and therefore the book covers fundamental aspects of persistent conjugated polymer backbone, water soluble conjugated polyelectrolytes and surfactants, conjugated molecules and biomolecules and DNA and the advanced use of synchrotron radiation and electron microscopy to find out structural details in conjugated molecule films and devices as well as under ambient and extreme conditions.

Author: Pablo de la Iglesia
Publisher:
ISBN:
Category :
Languages : en
Pages : 193

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Conjugated polymers, due to their unique optical and electronic properties, can be used for applications such as photovoltaic devices, light-emitting diodes, transistors, and organic sensors. Although, conjugated polymers have several promising properties, uses for these materials are often limited by inefficient charge transport. Inducing polymer aggregation improves the efficiency of charge propagation due to an increase on the conjugation length of the polymer and the crystallization of the polymer domains. The scope of this project is to study the self-assembly of conjugated polymers and its effect on the properties of the materials. More specifically, this project aims to control the kinetics of aggregation in order to affect the structural conformation of the polymer and have an impact on the properties of the material. Self-assembly is controlled by changing parameters such as solvent quality, temperature and dopant chemistry. Both structure and properties change in response to the conditions in which the polymer is placed. This means that the properties of the material could be controlled and optimized. Additionally, a protocol to synthesized organic solvent dispersible Poly(3,4-ethylenedioxythiphehe) is developed and studied. This synthesis uses the controlled aggregation of the polymer strands to prevent the polymer from going out of dispersion. This procedure enables the use of one of the most conductive conjugated polymers in applications previously prohibited due to its poor processability.

Author: Gregory Matthew Newbloom
Publisher:
ISBN:
Category :
Languages : en
Pages : 252

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Book Description
Conjugated polymers are a Nobel Prize winning class of materials known for their intrinsic semi-conducting properties and have been used in applications as diverse as organic-based solar cells, transistors, light emitting diodes, sensors and thermoelectric devices. These applications have varying, but optimized, structure and property requirements which often include an interconnected network of conjugated polymers to transport charge. In this work, self-assembly and gelation are explored as a platform to engineer the multi-length scale structure of conjugated polymer networks. A detailed understanding is developed through structural characterization of each stage of the self-assembly process: dissolved polymer, semi-crystalline fiber, fibrillar branching and percolated network formation. Variations in self-assembly conditions were utilized to develop multi-length scale structure-property relationships. Furthermore, a new method to directly incorporate these fibrillar network structures into thin films for organic electronics is discussed. This dissertation will demonstrate our work towards understanding the mechanisms behind conjugated polymer self-assembly in order to provide robust design parameters that can be tuned to generate specific structures, occurring on multiple length scales, and relevant properties for a diversity of applications.

Author: David B. Amabilino
Publisher: John Wiley & Sons
ISBN: 3527625356
Category : Technology & Engineering
Languages : en
Pages : 442

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The only standard reference in this exciting new field combines the physical, chemical and material science perspectives in a synergic way. This monograph traces the development of the preparative methods employed to create nanostructures, in addition to the experimental techniques used to characterize them, as well as some of the surprising physical effects. The chapters cover every category of material, from organic to coordination compounds, metals and composites, in zero, one, two and three dimensions. The book also reviews structural, chemical, optical, and other physical properties, finishing with a look at the future for chiral nanosystems.

Author: Penglei Chen
Publisher: Frontiers Media SA
ISBN: 2889633608
Category :
Languages : en
Pages : 159

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Book Description
Π-conjugated systems of delocalized aromatic electrons along their backbones, including conjugated small molecules, oligomers, polymers, and carbonaceous materials, etc., have received considerable attention from a wide variety of scientific and technical communities. Compared to inorganic materials, the advantages of those based on π-tectons lie in their broad diversity, flexibility, and tunability with regard to structure/geometry/morphology, processability, composition, functionality, electronic/band structure, etc. In terms of sophisticated molecular engineering, these features endow them not only with excellent self-assembly properties but also with unique optical, electrical, mechanical, photophysical, photochemical, and biochemical attributes. This renders them promising scaffolds for advanced functional materials (AFMs) in numerous areas of general interest such as electronics, optics, optoelectronics, photovoltaics, magnetic and piezoelectric devices, sensors, catalysts, biomedicines, and others. With regard to the design/synthesis of novel π-tectons, the launch of diverse assembly/fabrication protocols, theoretical calculations, etc., the past several decades have witnessed tremendous advancements along this direction. Thus far, a vast array of high-performance π-tectons-based AFMs have been initiated. To some extent, the cooperative principle of π-πstacking and other noncovalent interactions has been revealed, and the structure-property relationships have been disclosed. Despite the existing progress, this field still faces challenges, for example: (i) the need for scalable assembly/manufacture under ambient conditions—with low-cost, facile, environmentally-friendly protocols (ii) clearer correlations bridging the underlying intricate relationships of each successive step in assembly/manufacture (iii) corresponding theoretical calculations for guiding the rational design of π-tectons that elucidate the cooperative principle of π-π stacking and other noncovalent interactions, as well as the principle of structure-performance correlation (iv) stability and durability, among the most important concerns regarding their commercialization The advancements accumulated during the past decades have established a solid foundation for the further development of π-conjugated systems-based AFMs. We believe that with unrelenting efforts from both scientific and technical communities of various backgrounds, their practical applications will eventually be fulfilled. This Research Topic aims to address the above-mentioned challenges

Author: Hengbin Wang
Publisher:
ISBN:
Category : Block copolymers
Languages : en
Pages : 446

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Author: Nicolas Giuseppone
Publisher: John Wiley & Sons
ISBN: 3527821988
Category : Science
Languages : en
Pages : 448

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Book Description
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: Akira Harada
Publisher: John Wiley & Sons
ISBN: 352732321X
Category : Science
Languages : en
Pages : 391

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Book Description
Presenting the work of pioneering experts in this exciting field of supramolecular polymer chemistry, this monograph covers an extensive range of applications, including drug delivery and catalysis. It focuses on new structures and phenomena of cyclodextrin-based supramolecular polymers and many other compound classes. While providing a deeper insight in macromolecular recognition and the mechanisms of living systems, this book also introduces fascinating novel phenomena beyond natural systems.