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Synthesis Of Functionalized Polyp Phenylenes Via Palladium Catalyzed Suzuki Cross Coupling Polymerization
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Book Synopsis Synthesis of Functionalized Poly(p-phenylene)s Via Palladium Catalyzed Suzuki Cross-coupling Polymerization by : Peter Balys Balanda
Download or read book Synthesis of Functionalized Poly(p-phenylene)s Via Palladium Catalyzed Suzuki Cross-coupling Polymerization written by Peter Balys Balanda and published by . This book was released on 1997 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis of Functionalized Poly(p-phenylene)s Via Palladium Acetate Catalyzed Suzuki Cross-coupling Polymerization by : Peter Balys Balanda
Download or read book Synthesis of Functionalized Poly(p-phenylene)s Via Palladium Acetate Catalyzed Suzuki Cross-coupling Polymerization written by Peter Balys Balanda and published by . This book was released on 1997 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis of Π-conjugated Polymers Via Suzuki Cross-coupling Polymerization by : Einat Elmalem
Download or read book Synthesis of Π-conjugated Polymers Via Suzuki Cross-coupling Polymerization written by Einat Elmalem and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis of Planar Poly(P-Phenylene) Derivatives for Maximization of Extended Pi-Conjugation by :
Download or read book Synthesis of Planar Poly(P-Phenylene) Derivatives for Maximization of Extended Pi-Conjugation written by and published by . This book was released on 1994 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Described is the synthesis of ladder polymers with a poly(p- phenylene) (PPP) backbone. The main PPP backbone was synthesized via palladium- catalyzed coupling of an arylbis(boronic ester) with an aryl dibromide. Imine bridges, formed by exposure of the polymer to trifluoroacetic acid, are used to forced the consecutive units into planarity. The bridging units are sup 2 hybridized thus allowing for greater pi-electron flow between the consecutive phenyl units by lowering the band gap between the hydroquinoidal and the quinoidal forms of the phenylene backbone. Upon planarization, bathochromic shifts of 210-240 nm occur for the n-dodecyl substituted polymer. The optical spectra of the planar systems are compared to that of the parent nonplanarized polymers, oligo(p-phenylenes), PPP and other near-planar PPP derivatives. When the bridges are n-dodecyl substituted, the fully planar structures can be made into flexible free standing films.
Book Synopsis Accessing Conjugated Polymers with Precisely Controlled Heterobisfunctional Chain Ends Via Post-polymerization Modification of the OTf Group and Controlled Pd(0)/t-Bu3P-catalyzed Suzuki Cross-coupling Polymerization by :
Download or read book Accessing Conjugated Polymers with Precisely Controlled Heterobisfunctional Chain Ends Via Post-polymerization Modification of the OTf Group and Controlled Pd(0)/t-Bu3P-catalyzed Suzuki Cross-coupling Polymerization written by and published by . This book was released on 2015 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, a general strategy toward the synthesis of well-defined conjugated polymers with controlled heterobisfunctional chain ends via combination of controlled Pd(0)/t-Bu3P Suzuki cross-coupling polymerization with the post-polymerization modification of the triflate (OTf) group was disclosed.
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2710 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Functionalized Poly(P-Xylylene)S and Cyclopenta-annulated Polyaromatic Hydrocarbon Materials by : Ain Uddin
Download or read book Functionalized Poly(P-Xylylene)S and Cyclopenta-annulated Polyaromatic Hydrocarbon Materials written by Ain Uddin and published by . This book was released on 2021 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of donor-acceptor copolymers containing dicyclopenta[cd, jk]pyrene and dicyclopenta[cd, lm]perylene acceptor units were prepared using palladium catalyzed cyclopenta-annulation reactions. Six polymer variants were prepared with diethynyl containing donor groups based on benzo[1,2-b:4,5-b']dithiophene, thieno[3,2-b]thiophene, and 4-octyl-4H-dithieno[3,2-b:2',3'-d]pyrrole. Copolymer with molecular weights (Mn) of 6-14 kDa, having broad light absorption in the visible region with band gaps of 1.38-1.85 eV was successfully synthesized via the cyclopentannulation polymerization strategy. The synthetic methodology to access these copolymers as well as their optoelectronic properties (e.g., thin-film absorption and cyclic voltammetry) are presented. Second, ladder polymers and small molecules based on a s-indaceno[1,2,3-cd:5,6,7-c'd']dipyrene scaffold were prepared using a palladium catalyzed arylation reaction. Three specific small molecules as well as ladder polymers with molecular weight up to 13 kDa were prepared. These rigid, planar polymers possessed energies of -5.39 to -5.23 eV for the highest occupied molecular orbital (HOMO), -2.42 eV to -2.98 eV for the lowest unoccupied molecular orbitals (LUMO) and optical band gaps of 1.68 to 2.03 eV. These polymers were tested in organic field effect transistors with derivatives giving hole mobilities up to 2.5 X 10-5 cm2V-1s-1. Lastly, strategies for the synthesis and post-modification of poly(p-xylylene)s (PPXs) with sidechains containing alkyl bromide functionality is presented. Diimide hydrogenation of poly(p-phenylene vinylene)s (PPVs) (originally synthesized by a Gilch polymerization) was utilized to prepare PPXs. To keep sidechain-containing bromide functionality intact, backbone reduction of the polymer was carried out with hydrazine hydrate in toluene at 80 °C. Using a post-polymer modification, the alkylbromide sidechains of PPX polymers were modified with trimethylamine to form tetraalkylammonium ion functionality and their functionality was evaluated as an anion conducting membrane. The introduction of tetraalkylammonium ions and hydrophobic chains enhanced the film-forming properties and alkaline stability of PPX while PPX homopolymers containing tetralkylammonium ions were completely water-soluble. To remedy these issues, an in situ crosslinking process that used N, N, N', N'-tetramethyl-1,6-hexanediamine during the tetraalkylammonium formation of brominated PPX polymers allowed the formation of films that could be tested for conductivity. Conductivities of ~10 mS×cm-1 were measured and gradually declined in magnitude over a month of study.
Book Synopsis Fundamentals of Inorganic and Organometallic Polymer Science by : Christian Agatemor
Download or read book Fundamentals of Inorganic and Organometallic Polymer Science written by Christian Agatemor and published by Royal Society of Chemistry. This book was released on 2023-09-04 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inorganic and organometallic polymers feature many attractive properties that are useful for the design of diverse functional materials. Emphasising concepts that inform polymer design, synthesis and applications, readers of this book will gain a complete understanding of the introduction to inorganic and organometallic polymer science that will further their studies in materials science, chemistry and engineering. The first chapter lays down the core concepts that the book builds from, including polymerisation and naming conventions. It also reveals why some organometallic polymers are better suited than organic polymers in certain applications. Subsequent chapters discuss the chemistry of metals in particular the transition metals as they relate to polymer properties, before walking the reader through in-depth chapters on synthesis, structure, properties, characterization, and examples of inorganic and organometallic polymers. The final chapter presents applications of these polymers in diverse fields ranging from biomedicine, energy to catalysis. Worked examples and exercises are provided at the end of each chapter to assist students in assessing their understanding of these concepts, and journal references are included to direct students to published literature related to inorganic and organometallic polymers. Ideal for lecturers teaching a one semester advanced undergraduate and graduate courses in polymer science, as well as for self-study researchers and industrial chemists that are working with polymers, this book provides the user with a complete and expert grounding to the field.
Book Synopsis Polymer Characterisation by : B.J. Hunt
Download or read book Polymer Characterisation written by B.J. Hunt and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymers continue to play an ever increasing role in the modern world. In fact it is quite inconceivable to most people that we could ever have existed of the increased volume and variety of materials without them. As a result currently available, and the diversity of their application, characterisation has become an essential requirement of industrial and academic laboratories in volved with polymeric materials. On the one hand requirements may come from polymer specialists involved in the design and synthesis of new materials who require a detailed understanding of the relationship between the precise molecular architecture and the properties of the polymer in order to improve its capabilities and range of applications. On the other hand, many analysts who are not polymer specialists are faced with the problems of analysing and testing a wide range of polymeric materials for quality control or material specification purposes. We hope this book will be a useful reference for all scientists and techno or industrial laboratories, logists involved with polymers, whether in academic and irrespective of their scientific discipline. We have attempted to include in one volume all of the most important techniques. Obviously it is not possible to do this in any great depth but we have encouraged the use of specific examples to illustrate the range of possibilities. In addition numerous references are given to more detailed texts on specific subjects, to direct the reader where appropriate. The book is divided into II chapters.
Author :Vadapalli Chandrasekhar Publisher :Springer Science & Business Media ISBN 13 :3540225749 Total Pages :349 pages Book Rating :4.5/5 (42 download)
Book Synopsis Inorganic and Organometallic Polymers by : Vadapalli Chandrasekhar
Download or read book Inorganic and Organometallic Polymers written by Vadapalli Chandrasekhar and published by Springer Science & Business Media. This book was released on 2005-01-18 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has its origins in courses taught by the author to various und- graduate and graduate students at the Indian Institute of Technology, K- pur, India. The diversity of inorganic chemistry and its impact on polymer chemistry has been profound. This subject matter has grown considerably in the last decade and the need to present it in a coherent manner to young minds is a pedagogic challenge. The aim of this book is to present to the students an introduction to the developments in Inorganic and - ganometallic polymers. This book is divided into eight chapters. Chapter 1 provides a general overview on the challenges of Inorganic polymer synthesis. This is f- lowed by a survey of organic polymers and also includes some basic f- tures of polymers. Chapters 3-8 deal with prominent families of inorganic and organometallic polymers. Although the target group of this book is the undergraduate and graduate students of chemistry, chemical engineering and materials science it is also hoped that chemists and related scientists in industry would find this book useful. I am extremely thankful to my wife Sudha who not only encouraged me throughout but also drew all the Figures and Schemes of this book. I also thank my children Adithya and Aarathi for their constant concern on the progress of this book. I express my acknowledgment to the editorial team of Springer-Verlag for their cooperation.
Book Synopsis Frontiers in Biosensorics I by : F.W. Scheller
Download or read book Frontiers in Biosensorics I written by F.W. Scheller and published by Springer Science & Business Media. This book was released on 1996-12-01 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume I provides an in-depth discussion of the most recent developments of crucical biosensor components. It concentrates on the interface between the analyte phase and the detector, namely, the implementation of novel recognition elements, including nucleic acids, and of leading-edge technology in the construction of responsive thin layers. Thus, the reader can obtain a foretaste of achievable future progress in the field.
Book Synopsis Carbon Allotropes: Metal-Complex Chemistry, Properties and Applications by : Boris Ildusovich Kharisov
Download or read book Carbon Allotropes: Metal-Complex Chemistry, Properties and Applications written by Boris Ildusovich Kharisov and published by Springer. This book was released on 2019-01-02 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a detailed description of metal-complex functionalized carbon allotrope forms, including classic (such as graphite), rare (such as M- or T-carbon), and nanoforms (such as carbon nanotubes, nanodiamonds, etc.). Filling a void in the nanotechnology literature, the book presents chapters generalizing the synthesis, structure, properties, and applications of all known carbon allotropes. Metal-complex composites of carbons are described, along with several examples of their preparation and characterization, soluble metal-complex carbon composites, cost-benefit data, metal complexes as precursors of carbon allotropes, and applications. A lab manual on the synthesis and characterization of carbon allotropes and their metal-complex composites is included. Provides a complete description of all carbon allotropes, both classic and rare, as well as carbon nanostructures and their metal-complex composites; Contains a laboratory manual of experiments on the synthesis and characterization of metal-complex carbon composites; Discusses applications in diverse fields, such as catalysis on supporting materials, water treatment, sensors, drug delivery, and devices.
Book Synopsis Polymer Electrolyte Fuel Cell Durability by : Felix N. Büchi
Download or read book Polymer Electrolyte Fuel Cell Durability written by Felix N. Büchi and published by Springer Science & Business Media. This book was released on 2009-02-08 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers a significant number of R&D projects, performed mostly after 2000, devoted to the understanding and prevention of performance degradation processes in polymer electrolyte fuel cells (PEFCs). The extent and severity of performance degradation processes in PEFCs were recognized rather gradually. Indeed, the recognition overlapped with a significant number of industrial dem- strations of fuel cell powered vehicles, which would suggest a degree of technology maturity beyond the resaolution of fundamental failure mechanisms. An intriguing question, therefore, is why has there been this apparent delay in addressing fun- mental performance stability requirements. The apparent answer is that testing of the power system under fully realistic operation conditions was one prerequisite for revealing the nature and extent of some key modes of PEFC stack failure. Such modes of failure were not exposed to a similar degree, or not at all, in earlier tests of PEFC stacks which were not performed under fully relevant conditions, parti- larly such tests which did not include multiple on–off and/or high power–low power cycles typical for transportation and mobile power applications of PEFCs. Long-term testing of PEFCs reported in the early 1990s by both Los Alamos National Laboratory and Ballard Power was performed under conditions of c- stant cell voltage, typically near the maximum power point of the PEFC.
Book Synopsis Ligand Design in Metal Chemistry by : Mark Stradiotto
Download or read book Ligand Design in Metal Chemistry written by Mark Stradiotto and published by John Wiley & Sons. This book was released on 2016-09-01 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design of ancillary ligands used to modify the structural and reactivity properties of metal complexes has evolved into a rapidly expanding sub-discipline in inorganic and organometallic chemistry. Ancillary ligand design has figured directly in the discovery of new bonding motifs and stoichiometric reactivity, as well as in the development of new catalytic protocols that have had widespread positive impact on chemical synthesis on benchtop and industrial scales. Ligand Design in Metal Chemistry presents a collection of cutting-edge contributions from leaders in the field of ligand design, encompassing a broad spectrum of ancillary ligand classes and reactivity applications. Topics covered include: Key concepts in ligand design Redox non-innocent ligands Ligands for selective alkene metathesis Ligands in cross-coupling Ligand design in polymerization Ligand design in modern lanthanide chemistry Cooperative metal-ligand reactivity P,N Ligands for enantioselective hydrogenation Spiro-cyclic ligands in asymmetric catalysis This book will be a valuable reference for academic researchers and industry practitioners working in the field of ligand design, as well as those who work in the many areas in which the impact of ancillary ligand design has proven significant, for example synthetic organic chemistry, catalysis, medicinal chemistry, polymer science and materials chemistry.
Download or read book Sulfur Chemistry written by Xuefeng Jiang and published by Springer Nature. This book was released on 2019-08-28 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series Topics in Current Chemistry Collections presents critical reviews from the journal Topics in Current Chemistry organized in topical volumes. The scope of coverage is all areas of chemical science including the interfaces with related disciplines such as biology, medicine and materials science. The goal of each thematic volume is to give the non-specialist reader, whether in academia or industry, a comprehensive insight into an area where new research is emerging which is of interest to a larger scientific audience. Each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years are presented using selected examples to illustrate the principles discussed. The coverage is not intended to be an exhaustive summary of the field or include large quantities of data, but should rather be conceptual, concentrating on the methodological thinking that will allow the non-specialist reader to understand the information presented. Contributions also offer an outlook on potential future developments in the field.
Book Synopsis Handbook of Porphyrin Science: with Applications to Chemistry, Physics, Materials Science, Engineering, Biology and Medicine (volume 5) by : Karl M. Kadish
Download or read book Handbook of Porphyrin Science: with Applications to Chemistry, Physics, Materials Science, Engineering, Biology and Medicine (volume 5) written by Karl M. Kadish and published by World Scientific. This book was released on 2010 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first set of Handbook of Porphyrin Science.Porphyrins, phthalocyanines and their numerous analogues and derivatives are materials of tremendous importance in chemistry, materials science, physics, biology and medicine. They are the red color in blood (heme) and the green in leaves (chlorophyll); they are also excellent ligands that can coordinate with almost every metal in the Periodic Table. Grounded in natural systems, porphyrins are incredibly versatile and can be modified in many ways; each new modification yields derivatives demonstrated new chemistry, physics and biology, with a vast array of medicinal and technical applications.As porphyrins are currently employed as platforms for study of theoretical principles and applications in a wide variety of fields, the Handbook of Porphyrin Science represents a timely ongoing series dealing in detail with the synthesis, chemistry, physicochemical and medical properties and applications of polypyrrole macrocycles. Professors Karl Kadish, Kevin Smith and Roger Guilard are internationally recognized experts in the research field of porphyrins, each having his own separate area of expertise in the field. Between them, they have published over 1500 peer-reviewed papers and edited more than three dozen books on diverse topics of porphyrins and phthalocyanines. In assembling the new volumes of this unique Handbook, they have selected and attracted the very best scientists in each sub-discipline as contributing authors of the chaptersThis Handbook will prove to be a modern authoritative treatise on the subject as it is a collection of up-to-date works by world-renowned experts in the field. Complete with hundreds of figures, tables and structural formulas, and thousands of literature citations, all researchers and graduate students in this field will find the Handbook of Porphyrin Science an essential, major reference source for many years to come.
Book Synopsis Steric Effects in Drug Design by : M. Charton
Download or read book Steric Effects in Drug Design written by M. Charton and published by Springer. This book was released on 1983-07-01 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions by numerous experts
