Download or read book Excited State Properties of Organic and Organometallic Oligomers Polymers and Materials and Their Solid State Applications written by Randi Sue Price and published by . This book was released on 2013 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this research is to study the excited state dynamics of conjugated molecules, oligomers and polymers in the solid state and compare these photophysical properties to those found in solution. To study the triplet excited state dynamics of films a new nanosecond transient absorption instrumentation was developed. This instrument can detect transient absorption with ... A as low as of 10-3. Using this newly available instrumentation, it is possible to measure the triplet excited state dynamics so as to gain insight into several solid-state applications of photoactive molecules, oligomers, and polymers. A series of p-phenylene vinylene platinum acetylide complexes are studied for optical power limiting applications, and they are incorporated into poly(methyl methacrylate) (PMMA) monoliths. The photophysical properties of the monoliths and Triplet-triplet annihilation in conjugated co-polymers containing phenylene and p-phenylene vinylene platinum acetylide units is observed and compared against representative "monomer" complexes using transient absorption spectroscopy as a function of increasing laser fluence of the excitation pulse. The interaction between conjugated polymer, MEH-PPV, and a trimeric perfluoro-ortho-phenylene mercury complex, Hg3 is investigated in solution and in films. Finally cationic oligomers are intercalated into a clay host, and the photophysical properties of the clay-oligomer hybrid are investigated in disperse solutions and in films.
Download or read book Inorganic and Organometallic Oligomers and Polymers written by J.F. Harrod and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although, carbon is only one of one hundred plus elements, the polymer science lit erature consists primarily of studies on carbon based polymers. In part, this reflects the varied feedstock sources and in part, the type of bonds and bond forming reactions avail able to form organic polymers that are not available to the inorganic and organometallic chemist. However, recent intense interest in polymers with novel optical, electronic or magnetic properties or polymers that can serve as precursors to ceramic, semiconductor, metallic or superconductor materials has served as a driver for the development of novel synthetic routes and characterization techniques that have launched many new inorganic and organometallic oligomers and polymer systems. The following chapters represent an effort to provide an overview of several new and continuing areas of development in inorganic and organometallic polymer science. This book represents the second in a series of books we have edited on inorganic and organometallic polymer chemistry (1. Transformation of Organo-metallics into Common and Exotic Materials, NATO ASI Series Vol 141. 3. Inorganic and Organometallic Polymers with Special Properties, NATO ASI Series in press). In this series, we attempt to develop, for the reader, an understanding of the breadth, depth and potential of inorganic and organometallic polymer science.
Download or read book Inorganic and Organometallic Polymers with Special Properties written by R.M. Laine and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the NATO Advanced Research Workshop, Cap d'Agde, France, September 9-14, 1990
Download or read book Reactive Oligomers written by Entelis and published by CRC Press. This book was released on 2023-03-08 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reactive oligomers (ROs) constitute a starting material for the production of numerous polymeric materials with a pre-assigned set of physico-mechanical and physico-chemical properties. This book is the first to treat systematically various methods for determining the FTD and MWD of functional oligomers. Special attention is given to the application of liquid chromatography in different separation modes: exclusion (gel-permeation chromatography, GPC) and adsorption, as well as to the separation of functional oligomers in the critical region (SCR) at the boundary between the specified modes.
Download or read book Conjugated Polymers for Next Generation Applications Volume 2 written by Vijay Kumar and published by Woodhead Publishing. This book was released on 2022-06-23 with total page 443 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conjugated Polymers for Next-Generation Applications, Volume Two: Energy Storage Devices describes the synthesis and characterization of varied conjugated polymeric materials and their key applications, including active electrode materials for electrochemical capacitors and lithium-ion batteries, along with new ideas of functional materials for next-generation high-energy batteries, a discussion of common design procedures, and the pros and cons of conjugated polymers for certain applications. The book’s emphasis lies in the underlying electronic properties of conjugated polymers, their characterization and analysis, and the evaluation of their effectiveness for utilization in energy and electronics applications. This book is ideal for researchers and practitioners in the area of materials science, chemistry and chemical engineering. Provides an overview of the synthesis and functionalization of conjugated polymers and their composites Reviews important photovoltaics applications of conjugated polymeric materials, including their use in energy storage, batteries and optoelectronic devices Discusses conjugated polymers and their application in electronics for sensing, bioelectronics, memory, and more
Download or read book Oligomeric State of Substances written by S. M. Mezhikovskiĭ and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book gives an original interpretation of modern ideas about oligomers as substances which, due to their molecular structure, exhibit peculiarities of statistical behaviour different form the statistics of monomers and polymers. The criteria are given that enable one to distinguish between the ranges of monomers, oligomers and polymers in homologous series. Theoretical aspects of a small-scale oligomer structure of and models for the formation of the supermolecular and the organization of liquid oligomeric systems are presented. The theoretical and experimental results of studying phase transitions and anomalies of physicochemical properties inherent to oligomeric systems are considered.
Download or read book Handbook of Oligo and Polythiophenes written by Denis Fichou and published by John Wiley & Sons. This book was released on 2008-11-21 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: This first concise handbook on this important new class of organic conducting materials gives a broad survey over this emerging field of research. The physical background is covered as well as the synthesis, electronic and nonlinear optical properties and applications of these advanced materials. This information will be of high value for graduate students, researchers and practitioners working in the interdisciplinary field of materials science, polymer and organic chemistry and applied physics.
Download or read book Conjugated Polymers And Oligomers Structural And Soft Matter Aspects written by Matti Knaapila and published by World Scientific. This book was released on 2017-12-12 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Inorganic and Organometallic Macromolecules written by Alaa S. Abd-El-Aziz and published by Springer Science & Business Media. This book was released on 2007-12-19 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This important work is based on the editors’ symposium at the 2005 ACS meeting in Washington, DC. The contents include an emphasis on main-group polymers, including boron. The chapters are not simply journal articles, but have real added value as the editors have reviewed the general area by placing the work into a larger perspective. This book will be required reading for scientists in a number of disciplines including chemical engineers and physics researchers.
Download or read book Macromolecules Containing Metal and Metal Like Elements Volume 10 written by Alaa S. Abd-El-Aziz and published by John Wiley & Sons. This book was released on 2010-06-22 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal- and metalloid-containing macromolecules are defined as large molecules (i.e., polymers, DNA, proteins) that contain a metal or metalloid group affiliated with the molecule. This volume describes what is possible with metal-containing polymers where the metal is an essential ingredient in obtaining desired optical and electronic properties. Covering applications in nonlinear optical materials, solar cells, light-emitting diodes, photovoltaic cells, field-effect transistors, chemosensing devices, and biosensing devices, this indispensible guide focuses on the photochemistry and photophysics of metal-containing polymers, with chapters by leading contributors to the core advances in this field.
Download or read book Book of Abstracts written by and published by . This book was released on 2000 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Photochemistry written by Ian R. Dunkin and published by Royal Society of Chemistry. This book was released on 2009-10-09 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: The breadth of scientific and technological interests in the general topic of photochemistry is truly enormous and includes, for example, such diverse areas as microelectronics, atmospheric chemistry, organic synthesis, non-conventional photoimaging, photosynthesis, solar energy conversion, polymer technologies, and spectroscopy. This Specialist Periodical Report on Photochemistry aims to provide an annual review of photo-induced processes that have relevance to the above wide-ranging academic and commercial disciplines, and interests in chemistry, physics, biology and technology. In order to provide easy access to this vast and varied literature, each volume of Photochemistry comprises sections concerned with photophysical processes in condensed phases, organic aspects which are sub-divided by chromophore type, polymer photochemistry, and photochemical aspects of solar energy conversion. Volume 37 covers literature published from July 2004 to June 2007. Specialist Periodical Reports provide systematic and detailed review coverage in major areas of chemical research. Compiled by teams of leading authorities in the relevant subject areas, the series creates a unique service for the active research chemist, with regular, in-depth accounts of progress in particular fields of chemistry. Subject coverage within different volumes of a given title is similar and publication is on an annual or biennial basis.
Download or read book Designing New Architectures for Controlling Solid State Properties of Conjugated Polymers written by Rakesh R. Nambiar and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The relative placement of side chains along the backbone has a great influence on the solid state ordering of conjugated polymers. Poly(2,5-disubstituted-1,4-phenylene ethynylene)s (PPE)s, an important class of conjugated polymers, are generally synthesized by Pd-catalyzed coupling polymerizations of appropriately substituted diiodo and diethynyl benzenes (i.e., A-A and B-B type monomers). In asymmetrically substituted PPEs, this results in an irregular substitution pattern of the side chains along the polymer backbone. We report a new synthetic approach to prepare regioregular unsymmetrically substituted PPEs by polymerization of 4-iodophenylacetylenes (i.e., A-B type monomer). We provide a detailed discussion of various approaches to the synthesis of PPEs with different regioregularities and provide a description of the differences between regioregular and regiorandom analogs.
Download or read book Oligomers Polymer Composites Molecular Imprinting written by and published by Springer Science & Business Media. This book was released on 2007-02-13 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions by numerouis experts
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2002 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Silicon Based Polymers written by François Ganachaud and published by Springer Science & Business Media. This book was released on 2008-08-09 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: Silicon Based Polymers presents highlights in advanced research and technological innovations using macromolecular organosilicon compounds and systems, as presented in the 2007 ISPO congress. Silicon-containing materials and polymers are used all over the world and in a variety of industries, domestic products and high technology applications. Among them, silicones are certainly the most well–known, however there are still new properties discovered and preparative processes developed all the time, therefore adding to their potential. Less known, but in preparation for the future, are other silicon containing-polymers which are now close to maturity and in fact some are already available like polysilsesquioxanes and polysilanes. All these silicon based materials can adopt very different structures like chains, dendrimers, hyperbranched and networks, physical and chemical gels. The result is a vast array of materials with applications in various areas such as optics, electronics, ionic electrolytes, liquid crystals, biomaterials, ceramics and concrete, paints and coatings ... all needed to face the environmental, energetical and technological issues of today. Some industrial aspects of the applications of these materials will also be presented.
Download or read book Organic Radical Polymers written by Sanjoy Mukherjee and published by Springer. This book was released on 2017-06-22 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a detailed introduction to organic radical polymers and open-shell macromolecules. Functional macromolecules have led to marked increases in a wide range of technologies, and one of the fastest growing of these fields is that of organic electronic materials and devices. To date, synthetic and organic electronic device efforts have focused almost exclusively on closed-shell polymers despite the promise of open-shell macromolecules in myriad applications. This text represents the first comprehensive review of the design, synthesis, characterization, and device applications of open-shell polymers. In particular, it will summarize the impressive synthetic and device performance efforts that have been achieved with respect to energy storage, energy conversion, magnetic, and spintronic applications. By combining comprehensive reviews with a wealth of informative figures, the text provides the reader with a complete “molecules-to-modules” understanding of the state of the art in open-shell macromolecules. Moreover, the monograph highlights future directions for open-shell polymers in order to allow the reader to be part of the community that continues to build the field. In this way, the reader will gain a rapid understanding of the field and will have a clear pathway to utilize these materials in next-generation applications.
