Download or read book Synthesis of Selectively Functionalized Network Polymers and Their Application as Designed Catalysts written by James Vincent Beach and published by . This book was released on 1994 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis of Selectively Functionalized Network Polymers and Their Application in Molecular Recognition written by Futao Wakui and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis of Selectively Functionalized Network Polymers and Thier i e Their Application in Molecular Recognition written by Futao Wakui and published by . This book was released on 1991 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis Characterization and Applications of Selectively Functionalized Network Polymers written by Gregory James Stoddard and published by . This book was released on 1989 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Polymer Yearbook 13 written by Richard A. Pethrick and published by CRC Press. This book was released on 2019-08-22 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer Yearbook 13 brings together reviews and information on the progress of polymer science worldwide, including useful and topical information such as a list of new publications in polymer science and a compilation of dissertation abstracts. This volume includes reviews of key aspects of polymer science, including contributions from Russia, and details of important publications., This volume also contains reviews on state-of-the-art Japanese research presented at the annual Spring and Fall meetings of the Japanese Polymer Science Society. The aim of this section is to make information on the progress of Japanese polymer science, and on topics of current interest to polymer scientists in Japan, more easily available worldwide.

Download or read book Dissertation Abstracts International written by and published by . This book was released on 2008 with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Polymeric Chiral Catalyst Design and Chiral Polymer Synthesis written by Shinichi Itsuno and published by John Wiley & Sons. This book was released on 2011-06-28 with total page 674 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews chiral polymer synthesis and its application to asymmetric catalysis. It features the design and use of polymer-immobilized catalysts and methods for their design and synthesis. Chapters cover peptide-catalyzed and enantioselective synthesis, optically-active polymers, and continuous flow processes. It collects recent advances in an important field of polymer and organic chemistry, with leading researchers explaining applications in academic and industry R & D.

Download or read book Designed Synthesis of Nanoporous Organic Polymers for Selective Gas Uptake and Catalytic Applications written by Pezhman Arab and published by . This book was released on 2015 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design and synthesis of porous organic polymers have attracted considerable attentions during the past decade due to their wide range of applications in gas storage, gas separation, energy conversion, and catalysis. Porous organic polymers can be pre-synthetically and post-synthetically functionalized with a wide variety of functionalities for desirable applications. Along these pursuits, we introduced new synthetic strategies for preparation of porous organic polymers for selective CO2 capture. Porous azo-linked polymers (ALPs) were synthesized by an oxidative reaction of amine-based monomers using copper(I) as a catalyst which leads to azo-linkage formation. ALPs exhibit high surface areas of up to 1200 m2 g-1 and have high chemical and thermal stabilities. The nitrogen atoms of the azo group can act as Lewis bases and the carbon atom of CO2 can act as a Lewis acid. Therefore, ALPs show high CO2 uptake capacities due to this Lewis acid-based interaction. The potential applications of ALPs for selective CO2 capture from flue gas, natural gas, and landfill gas under pressure-swing and vacuum swing separation settings were studied. Due to their high CO2 uptake capacity, selectivity, regenerability, and working capacity, ALPs are among the best porous organic frameworks for selective CO2 capture. In our second project, a new bis(imino)pyridine-linked porous polymer (BIPLP-1) was synthesized and post-synthetically functionalized with Cu(BF4)2for highly selective CO2 capture. BIPLP-1 was synthesized via a condensation reaction between 2,6-pyridinedicarboxaldehyde and 1,3,5-tris(4-aminophenyl)benzene, wherein the bis(imino)pyridine linkages are formed in-situ during polymerization. The functionalization of the polymer with Cu(BF4)2 was achieved by treatment of the polymer with a solution of Cu(BF4)2 via complexation of copper cations with bis(imino)pyridine moieties of the polymer. Cu(BF4)2 ions can act Lewis base and CO2 can act as a Lewis acid; and therefore, the functionalized polymer shows high binding affinity for CO2 due to this Lewis acid-based interaction. The functionalization of the pores with Cu(BF4)2resulted in a significant enhancement in CO2 binding energy, CO2 uptake capacity, and CO2 selectivity values. Due to high reactivity of bis(imino)pyridines toward transitions metals, BIPLP-1 can be post-synthetically functionalized with a wide variety of inorganic species for CO2 separation and catalytic applications.

Download or read book Polymer Molecular Weights written by Philip E. Slade and published by . This book was released on 1975 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phase Selectively Soluble Polymers for Homogeneously Supported Catalysts written by Shayna D Sung and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Soluble polymer supports that could be used in thermomorphic and latent biphasic systems have been prepared and analyzed for their potential application as supports for facilitated synthesis and catalysis. Phase selective solubilities were evaluated using polymers tagged with either visible dyes or fluorescent probes. Heptane/DMF, heptane/90% ethanol-water, heptane/ethyl acetate, heptane/ ethanol and heptane/tert-butanol solvent mixtures were all studied as examples of thermomorphic orlatent biphasic systems. A range of polymers, including poly-(tert-butylstyrene)(PTBS), poly(alkylsiloxanes) (PAS), poly(dodecylvinylpyrrolidone) (PDVP), poly(didodecylvinylpyrrolidone (PDDVP), poly (isobutylene) (PIB), poly (octadecylacrylate)s (PODA), and poly(octadecyl methacrylate)s (PODMA), were tested for hydrophobic phase selective solubility. The results of these studies were compared to prior work with polar and nonpolar poly (N-alkylacrylamide)s and polystyrene. Together with this prior work, these results have indicated that a wide range of polymers and solvent mixtures can be used for the recycling of soluble polymer-bound catalysts, reagents and sequestrants using either thermomorphic or latent biphasic separation strategies. Synthetic routes to terminally functionalized polyisobutylene oligomers, usefulas supports in synthesis and catalysis, are also discussed and described. Suchhydrocarbon polymers serve as highly soluble nonpolar analogs of well known poly(ethylene glycol) supports for synthesis and catalysis with the difference that the polymers are separated after a reaction by an extraction with alkane solvent. The synthesis of two polyisobutylene-supported phase transfer catalysts (PTC)are also described. These PTCs utilize the robust triazole functionality as a key synthetic step towards the preparation of the catalytic species. N alkylation of a PIB-supported triazole provides a direct route to the preparation of a PTC. Preparation of a tertiary phosphoninium salt containing a terminal alkyne allows simple attachment of the PTC to a PIB-supported azide via a triazole linker using Sharpless' Cu (I) [3 + 2] cycloaddition. These materials are active in catalyzing solid-liquid PTC and can be easily recycled by liquid-liquid extraction techniques.

Download or read book Applications of Polymers written by Raymond Seymour and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural polymers, such as proteins, starch, cellulose, hevea rubber, and gum which have been available for centuries, have been applied as materials for food, leather, sizings, fibers, structures, waterproofing, and coatings. During the past century, the use of both natural and syn thetic polymers has been expanded to include more intricate applications, such as membranes, foams, medicinals, conductors, insulators, fibers, films, packaging and applications requiring high modulus at elevated temperatures. The topics in this symposium which are summarized in this book are illustrative of some of the myriad applications of these ubiquitous mater ials. As stated in forecast in the last chapter in this book, it is cer tain that revolutionary applications of polymers will occur during the next decades. Hopefully, information presented in other chapters in this book will catalyze some of these anticipated applications. It is appropriate that these reports were presented at an American Chemical Society Polymer Science and Engineering Division Award Symposium honoring Dr. O.A. Battista who has gratifying to note that Phillips Pet roleum Company, which has paved the way in applications of many new poly mers, is the sponsor of this important award. We are all cheerfully expressing our thanks to this corporate spon sor and to Distinguished Professor Raymond B. Seymour of the University of Southern Mississippi who served as the organizer of this symposium and editor of this important book.

Download or read book Pyridine functionalized Polymeric Catalysts for CO2 Reduction written by Melanie Weichselbaumer and published by Springer. This book was released on 2015-06-22 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Melanie Weichselbaumer presents the synthesis of the monomers as well as the electropolymerization on Pt-electrodes. The electrolysis experiments were carried out for 40 hours and the products were analysed by gas chromatography and ionic chromatography. Pyridine-functionalized and Rhenium bipyridine-functionalized Polythiophenes can be used as heterogeneous catalysts for CO2-reduction.

Download or read book Handbook of Transition Metal Polymerization Catalysts written by Ray Hoff and published by John Wiley & Sons. This book was released on 2018-04-20 with total page 895 pages. Available in PDF, EPUB and Kindle. Book excerpt: Including recent advances and historically important catalysts, this book overviews methods for developing and applying polymerization catalysts – dealing with polymerization catalysts that afford commercially acceptable high yields of polymer with respect to catalyst mass or productivity. • Contains the valuable data needed to reproduce syntheses or use the catalyst for new applications • Offers a guide to the design and synthesis of catalysts, and their applications in synthesis of polymers • Includes the information essential for choosing the appropriate reactions to maximize yield of polymer synthesized • Presents new chapters on vanadium catalysts, Ziegler catalysts, laboratory homopolymerization, and copolymerization

Download or read book Design of Heterogeneous Catalysts written by Umit S. Ozkan and published by John Wiley & Sons. This book was released on 2009-02-11 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: This long-awaited reference source is the first book to focus on this important and hot topic. As such, it provides examples from a wide array of fields where catalyst design has been based on new insights and understanding, presenting such modern and important topics as self-assembly, nature-inspired catalysis, nano-scale architecture of surfaces and theoretical methods. With its inclusion of all the useful and powerful tools for the rational design of catalysts, this is a true "must have" book for every researcher in the field.

Download or read book American Doctoral Dissertations written by and published by . This book was released on 2002 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Functionalized Polymer Nanocomposites written by Gautam Patel and published by Elsevier. This book was released on 2024-08 with total page 1120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Functionalized Polymer Nanocomposites: From Synthesis to Applications presents a detailed review on the synthesis, fundamental chemistry, properties, and applications of these high-performance materials. The book's introductory chapter provides a brief overview of the various types of organic and inorganic nanofillers used for the synthesis of polymer nanocomposites. Emphasis is placed on their fundamental chemistry, processing methods, functionalization, and/or surface modification strategies. The dispersion state and their specific interaction with polymer matrices is also discussed in detail, as well as characterization techniques for functionalized nanofillers and functionalized polymer nanocomposites, and their properties, and applications. The book will be a valuable reference source for scientists, engineers, and postgraduate students working in the field of polymer science and technology, materials science and engineering, composites, and nanocomposites.

Download or read book Design Synthesis and Catalysis Applications of Bio Inspired Metal Containing Polymers written by Srinivas Thanneeru and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The quest for the construction of artificial enzyme models able to mimic the activity of metalloenzymes is lucrative research filed for many chemists. There have been considerable efforts in design and synthesize various bio-mimetic systems to achieve the enzymatic activity. One such enzyme mimicking system is to use of macromolecular environment such as polymers with the metal active sites has attracted tremendous interest and resulting in the formation of metal-containing polymers/metallopolymers. We believe that by integrating metal ions within the polymer frameworks using metal-ligand coordination will offer greater control over the choice of various functional groups, control of hydrophilicity/hydrophobicity and secondary coordination network offered by the polymer frameworks for the metal ions. These metal-containing polymers will be expected to serve as the better enzymatic models. The aim of this dissertation is to study the polymer promoted catalytic activity of novel metal-containing polymers. By taking the advantages of polymer synthesis methods, particularly, controlled free radical polymerization methods such as RAFT and ATRP, and post-polymerization methods, we prepared well-defined polymers with the desired functional groups. The metal ions were incorporated into the polymer network via metal-ligand coordination under dilute conditions to induce polymer cross-linking to yield metal-containing single chain polymer nanoparticles (M-SCNPs). These soft nano-sized polymeric nanoparticles were then used as enzymatic model systems for catalysis applications. In chapter 2 of this dissertation work, we explored the use of metallofoldamers containing Ni-thiolate co-factors in a folded polymer framework for the selective photoreduction of CO2. The catalysis results indicated that polymer framework promoted the activity of Ni active sites towards selective CO2 reduction to CO under photochemical conditions. In chapter 3, we demonstrated that Cu-containing SCNPs promoted the activity towards the selective hydroxylation reactions. The catalytic activity towards phenol substrates catalyzed Cu-SCNPs was studied and the results indicate that the selectivity was largely influenced by the dynamics of the folded polymer backbone. The unsaturation of coordination sites to Cu ions limits the cooperative catalysis. We solved this problem by designing a random copolymer having well-defined ligands with a coordination site for Cu-ions. We studied the polymer promoted cooperative O2 activation and how the catalytic efficiency was influenced by polymer flexibility and the mole fraction of Cu sites in copolymers which is described in chapter 4. Further extension of this work by introducing hydrophobic microenvironment for the Cu sites and how it will affect the catalytic activity was demonstrated in chapter 5.