Electro Optically Active Monomers

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Electro-optically Active Monomers

Author : R. S. Duran
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (87 download)

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Book Synopsis Electro-optically Active Monomers by : R. S. Duran

Download or read book Electro-optically Active Monomers written by R. S. Duran and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The overall objective of this study was the description of the behavior of mesogen substituted acetylene monomers and polymers in monolayer films at the air/water interface and as multilayer films including the formation of such films. Fundamental knowledge to be gained would include the effect of balancing hydrophilic and hydrophobic tendencies in a molecule more complex than the classical fatty acids or lipids. The effect of molecular shape on the packing and thus the ultimate stability of monolayers formed from these new molecules was explored. The work takes on the challenge of preorienting monomers in well-ordered arrays prior to attempting polymerization with the hope that order would be preserved in any resulting polymer. New knowledge gained with regard to the acetylenic monomers includes processing of the acetylene monomer into multilayer films, followed by the design and synthesis of a second generation of improved monomer structure for superior LBK film transfer properties. A third generation of acetylenic monomer was synthesized which approaches more closely the goal of solid state polymerization of these materials. A parallel study took a different approach. The materials are pre-formed poly(phenylene-acetylene) polymers so questions about reactivity are mute. The materials are a variation on the well-known hairy-rod polymers with regard to their Langmuir film-forming properties. Overall, the goal was to demonstrate that these polymers could be processed into NLO materials with novel polar order."--Page [1].

Optically Active Polymers

Author : E. Sélégny
Publisher : Springer Science & Business Media
ISBN 13 : 9400993781
Total Pages : 421 pages
Book Rating : 4.4/5 (9 download)

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Book Synopsis Optically Active Polymers by : E. Sélégny

Download or read book Optically Active Polymers written by E. Sélégny and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first four volumes of the series on 'Charged and Reactive Polymers' have been devoted to polymers in solution (Voh. I and II) or in gel and membrane forms (Vols. III and IV). In correlation with charges, other physical or chemical properties of macro molecules have been considered. Understanding of charge and hydrophobic effects is equally important for synthetic and biopolymers or their systems. Optically Active Polymers are related to problems of the same class, since optical activity is an inherent property of both natural macromolecules as well as a great variety of polymers synthesized in the Jast twenty years. Optical activity is a physical spectral property of chiral matter caused by asymmetrical configurations, conformations and structures which have no plane and no center of symmetry and consequently have two mirror image enantiomeric forms of inverse optical rotation. The racemic mixture of chiral enantiomers is optically inactive. The most common form of optical activity was first measured at a constant wavelength by the angle of rotation of linearly polarized light. More recently the measurements have been extended to the entire range of visible and attainable ultraviolet regions where electronic transitions are observed, giving rise to the ORD technique (Optical Rotatory Dispersion). The Cotton effects appear in the region of optically active absorption bands; outside of these bands the plain curve spectrum is also dependent on all the electronic transitions of the chromophores.

The Effect of Fluorine-substituted Monomers on the Electro-optical and Morphological Properties of Polymer Dispersed Liquid Crystals

Download The Effect of Fluorine-substituted Monomers on the Electro-optical and Morphological Properties of Polymer Dispersed Liquid Crystals PDF Online Free

Author : Michael D. Schulte
Publisher :
ISBN 13 :
Total Pages : 386 pages
Book Rating : 4.:/5 (437 download)

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Book Synopsis The Effect of Fluorine-substituted Monomers on the Electro-optical and Morphological Properties of Polymer Dispersed Liquid Crystals by : Michael D. Schulte

Download or read book The Effect of Fluorine-substituted Monomers on the Electro-optical and Morphological Properties of Polymer Dispersed Liquid Crystals written by Michael D. Schulte and published by . This book was released on 1999 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Electro Optical Properties of Copolymer Blends: Lasing, Electroluminescence and Photophysics

Author :
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Electro Optical Properties of Copolymer Blends: Lasing, Electroluminescence and Photophysics by :

Download or read book Electro Optical Properties of Copolymer Blends: Lasing, Electroluminescence and Photophysics written by and published by . This book was released on 2006 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this grant period we have continued our studies of the synthesis, characterization and device fabrication of electro-optically active chromophoric macromolecules. The systems studied focused on novel conjugated main chain structures with high photoluminescent and electroluminescent quantum yields. The structures incorporated fluorene containing moieties, ethynylene bonds, terphenylene derivatives, meta and ortho variants of the paraphenylene unit, and a number of derivatized phenyl units either alone or in combination. In most cases the photophysical properties of the new materials were extensively studied. A new method to prepare efficient anode surfaces for devices using indium tin oxide nanopartides was developed. Over 25 publications dealing with electrooptical polymers were published in the grant period. We have also continued our study of the coilglobule transition in solvated polar macromolecules focusing on temperature regimes just below the e-point. Other studies completed in the grant period included those involving surface modifications of polymer films by ion implantation orientated towards enhanced permselectivity, and a continuation of research studying ternary polymer blends in which one or more constituents is a copolymer. Altogether, some 36 manuscripts were published in the grant period, with a further 4 in press.

Passive and electrooptically active polymer for optical interconnects

Author : David John Gerold
Publisher :
ISBN 13 :
Total Pages : 132 pages
Book Rating : 4.:/5 (313 download)

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Book Synopsis Passive and electrooptically active polymer for optical interconnects by : David John Gerold

Download or read book Passive and electrooptically active polymer for optical interconnects written by David John Gerold and published by . This book was released on 1994 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Microstructure and Defects of Electrooptically Active Bithiazoles and Bisoxazoles

Author : Lebzylisbeth Gonzalez-Ronda
Publisher :
ISBN 13 :
Total Pages : 346 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Microstructure and Defects of Electrooptically Active Bithiazoles and Bisoxazoles by : Lebzylisbeth Gonzalez-Ronda

Download or read book Microstructure and Defects of Electrooptically Active Bithiazoles and Bisoxazoles written by Lebzylisbeth Gonzalez-Ronda and published by . This book was released on 2000 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Optically Active Polymers

Author : Pradip K. Dutta
Publisher : Springer
ISBN 13 : 9811026068
Total Pages : 64 pages
Book Rating : 4.8/5 (11 download)

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Book Synopsis Optically Active Polymers by : Pradip K. Dutta

Download or read book Optically Active Polymers written by Pradip K. Dutta and published by Springer. This book was released on 2016-09-16 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a systematic study of the synthesis of optically active polymers, discussing in detail the syntheses of three different types of optically active polymers from helical polymers, dendronized polymers and other types of polymeric compounds. It also explains the syntheses of optically active azoaromatic and carbazole-containing azoaromatic polymers and copolymers; optically active benzodithiophene; and optically active porphyrin derivatives. The final chapter discusses different properties of optically active polymers such as nonlinear optical properties, chiroptical properties, vapochromic behaviour, absorption and emission properties, fabrication and photochromic properties. The intrinsic details of various properties of optically active polymers will offer a valuable resource for researchers and industry personnel actively engaged in application-oriented investigations.

Physical and Analytical Electrochemistry, Electrocatalysis, and Photoelectrochemistry General Session

Author : A. H. Suroviec
Publisher : The Electrochemical Society
ISBN 13 : 1607687550
Total Pages : 37 pages
Book Rating : 4.6/5 (76 download)

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Book Synopsis Physical and Analytical Electrochemistry, Electrocatalysis, and Photoelectrochemistry General Session by : A. H. Suroviec

Download or read book Physical and Analytical Electrochemistry, Electrocatalysis, and Photoelectrochemistry General Session written by A. H. Suroviec and published by The Electrochemical Society. This book was released on 2016-09-21 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Molecular Light Scattering and Optical Activity

Author : Laurence D. Barron
Publisher : Cambridge University Press
ISBN 13 : 1139453416
Total Pages : 467 pages
Book Rating : 4.1/5 (394 download)

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Book Synopsis Molecular Light Scattering and Optical Activity by : Laurence D. Barron

Download or read book Molecular Light Scattering and Optical Activity written by Laurence D. Barron and published by Cambridge University Press. This book was released on 2009-10-15 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ranging from the physics of elementary particles to the structure of viruses, the subject matter of the book reflects the importance of optical activity and chirality in much of modern science and will be of interest to a wide range of physical and life scientists.

Electronic and Optical Properties of Conjugated Polymers

Author : William Barford
Publisher : OUP Oxford
ISBN 13 : 0191667048
Total Pages : 320 pages
Book Rating : 4.1/5 (916 download)

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Book Synopsis Electronic and Optical Properties of Conjugated Polymers by : William Barford

Download or read book Electronic and Optical Properties of Conjugated Polymers written by William Barford and published by OUP Oxford. This book was released on 2013-04-04 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conjugated polymers have important technological applications, including solar cells and light emitting devices. They are also active components in many important biological processes. In recent years there have been significant advances in our understanding of these systems, owing to both improved experimental measurements and the development of advanced computational techniques. The aim of this book is to describe and explain the electronic and optical properties of conjugated polymers. It focuses on the three key roles of electron-electron interactions, electron-nuclear coupling, and disorder in determining the character of the electronic states, and it relates these properties to experimental observations in real systems. A number of important optical and electronic processes in conjugated polymers are also described. The second edition has a more extended discussion of excitons in conjugated polymers. There is also a new chapter on the static and dynamical localization of excitons.

Polymers and Light

Author : Wolfram Schnabel
Publisher : John Wiley & Sons
ISBN 13 : 3527611037
Total Pages : 396 pages
Book Rating : 4.5/5 (276 download)

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Book Synopsis Polymers and Light by : Wolfram Schnabel

Download or read book Polymers and Light written by Wolfram Schnabel and published by John Wiley & Sons. This book was released on 2007-06-27 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: This first book to focus on the important and topical effect of light on polymeric materials reflects the multidisciplinary nature of the topic, building a bridge between polymer chemistry and physics, photochemistry and photophysics, and materials science. Written by one experienced author, a consistent approach is maintained throughout, covering such applications as nonlinear optical materials, core materials for optical waveguides, photoresists in the production of computer chips, photoswitches and optical memories. Advanced reading for polymer, physical and organic chemists, manufacturers of optoelectronic devices, chemical engineers, and materials scientists.

Conductive Electroactive Polymers

Author : Gordon G. Wallace
Publisher : CRC Press
ISBN 13 : 142006715X
Total Pages : 282 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Conductive Electroactive Polymers by : Gordon G. Wallace

Download or read book Conductive Electroactive Polymers written by Gordon G. Wallace and published by CRC Press. This book was released on 2008-10-22 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rapid advances in synthetic polymer science and nanotechnology have revealed new avenues of development in conductive electroactive polymers that take greater advantage of this versatile class of materials' unique properties. This third edition of Conductive Electroactive Polymers: Intelligent Polymer Systems continues to provide an in-depth unders

Molecular Optical Activity and the Chiral Discriminations

Author : Stephen F. Mason
Publisher : Cambridge University Press
ISBN 13 : 9780521247023
Total Pages : 300 pages
Book Rating : 4.2/5 (47 download)

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Book Synopsis Molecular Optical Activity and the Chiral Discriminations by : Stephen F. Mason

Download or read book Molecular Optical Activity and the Chiral Discriminations written by Stephen F. Mason and published by Cambridge University Press. This book was released on 1982-10-14 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Good,No Highlights,No Markup,all pages are intact, Slight Shelfwear,may have the corners slightly dented, may have slight color changes/slightly damaged spine.

Electro-Optics and Dielectrics of Macromolecules and Colloids

Author : Barry R. Jennings
Publisher : Springer Science & Business Media
ISBN 13 : 1468434977
Total Pages : 387 pages
Book Rating : 4.4/5 (684 download)

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Book Synopsis Electro-Optics and Dielectrics of Macromolecules and Colloids by : Barry R. Jennings

Download or read book Electro-Optics and Dielectrics of Macromolecules and Colloids written by Barry R. Jennings and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some seven years before Kerr's death, Larmor proposed that electric birefringence had its origin in the orientation of anisotropic molecules or elements within the apparently isotropic medium. The theory for this concept was formulated by Langevin. During the next half century, occasional measurements were made both to characterise the phenomenon and to evaluate the relevant physico-chemical parameters of pure liquids and molecular fluids. During the 1930-40 era, Staudinger and others demonstrated the existence in nature of giant molecules and colloidal particles. Since that time it has slowly but increasingly been realised that these big molecules or particles often have relatively large dipole moments, are generally anisotropic in structure and hence, in solution or suspension, give rise to significant electric birefringence signals. Furthermore, there have been three electronic innovations which have greatly eased the experimental measurement of the effect for such materials. These were the development of photomultiplier tubes for detection, of oscillo scope~ for display and of high voltage generators developing bursts or pulses of potential difference. The last mentioned enable the experi menter to study the Kerr effect not only for its amplitude but also in the time domain. The rates of molecular response to the switching of the electric field lead directly to information on the size and geo metry of the constituent molecules and particles in a dilute solution or suspension.

Molecular Electro-Optics

Author : Sonja Krause
Publisher : Springer Science & Business Media
ISBN 13 : 1468439146
Total Pages : 515 pages
Book Rating : 4.4/5 (684 download)

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Book Synopsis Molecular Electro-Optics by : Sonja Krause

Download or read book Molecular Electro-Optics written by Sonja Krause and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Advanced Study Institute on Molecular Electro-Optics was held on the campus of the Rensselaer Polytechnic Institute, Troy, New York, USA, from July 14 through July 24, 1980. This Advanced Study Institute was attended by sixteen invited lecturers and by forty-eight other participants. The present volume contains the texts of all of the invited lectures presented at the Institute. Although these lectures were supplemented by many animated discussions and by numerous short contributed papers, it was not possible to include these in the present volume. Molecular electro-optics is a difficult subject for research because it incorporates areas of theoretical physics such as elec tromagnetic theory and hydrodynamics of rotational diffusion, ex perimental physics such as lasers, optics, electric pulsers, and data collection via analog to digital converters and signal aver agers, and physical chemistry of macromolecules and colloids in solution (colloid science, biophysical chemistry, double layer polarization). This volume includes chapters on all of these subjects as well as introductions to magnets-optics and to elec trophoretic light scattering. The Advanced Study Institute was sponsored mainly by the North Atlantic Treaty Organization whose financial support made this meeting possible. Additional financial aid was supplied by the National Institutes of Health of the USA through their Fogarty International Center and the National Institute for Arthritis, Metabolism, and Digestive Diseases. Industrial contri buters consisted of the General Electric Company, Cober Electronics, and Malvern Scientific Corporation.

Nonlinear Optical and Electroactive Polymers

Author : Paras N. Prasad
Publisher : Springer
ISBN 13 : 9781461282624
Total Pages : 448 pages
Book Rating : 4.2/5 (826 download)

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Book Synopsis Nonlinear Optical and Electroactive Polymers by : Paras N. Prasad

Download or read book Nonlinear Optical and Electroactive Polymers written by Paras N. Prasad and published by Springer. This book was released on 2011-12-07 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: This treatise is a compendium of papers based on invited talks presented at the American Chemical Society Symposium on Electroactive Polymers which covered nonlinear optical polymers and conducting polymers, the common denominator being the correlated pi-electron structures. The improved understanding of the consequences of pi-electron delocalization upon nonlinear optical properties and charge carrier dynamics has laid the foundation for the rapid development and application of the electroresponse of conjugated polymers. As a result, the area of electroactive and nonlinear optical polymers is emerging as a frontier of sCience and technology. It is a multidisciplinary field that is bringing together scientists and engineers of varied background to interface their expertise. The recent explosion of interest in this area stems from the prospect of utilizing nonlinear optical effects for optical switching and logic operations in optical computing, optical signal processing, optical sensing and optical fiber communications. Polymers and organic are rapidly becoming one of the major material classes for nonlinear optical applications along with multiple quantum wells, ferroelectrics and other oxides, and direct band-gap semiconductors. The reasons for this lie in the unique molecular structures of polymers and organics and the ability to molecularly engineer the architecture of these structures through chemical synthesis.

Polymer Science: A Comprehensive Reference

Author :
Publisher : Newnes
ISBN 13 : 0080878628
Total Pages : 7752 pages
Book Rating : 4.0/5 (88 download)

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Book Synopsis Polymer Science: A Comprehensive Reference by :

Download or read book Polymer Science: A Comprehensive Reference written by and published by Newnes. This book was released on 2012-12-05 with total page 7752 pages. Available in PDF, EPUB and Kindle. Book excerpt: The progress in polymer science is revealed in the chapters of Polymer Science: A Comprehensive Reference, Ten Volume Set. In Volume 1, this is reflected in the improved understanding of the properties of polymers in solution, in bulk and in confined situations such as in thin films. Volume 2 addresses new characterization techniques, such as high resolution optical microscopy, scanning probe microscopy and other procedures for surface and interface characterization. Volume 3 presents the great progress achieved in precise synthetic polymerization techniques for vinyl monomers to control macromolecular architecture: the development of metallocene and post-metallocene catalysis for olefin polymerization, new ionic polymerization procedures, and atom transfer radical polymerization, nitroxide mediated polymerization, and reversible addition-fragmentation chain transfer systems as the most often used controlled/living radical polymerization methods. Volume 4 is devoted to kinetics, mechanisms and applications of ring opening polymerization of heterocyclic monomers and cycloolefins (ROMP), as well as to various less common polymerization techniques. Polycondensation and non-chain polymerizations, including dendrimer synthesis and various "click" procedures, are covered in Volume 5. Volume 6 focuses on several aspects of controlled macromolecular architectures and soft nano-objects including hybrids and bioconjugates. Many of the achievements would have not been possible without new characterization techniques like AFM that allowed direct imaging of single molecules and nano-objects with a precision available only recently. An entirely new aspect in polymer science is based on the combination of bottom-up methods such as polymer synthesis and molecularly programmed self-assembly with top-down structuring such as lithography and surface templating, as presented in Volume 7. It encompasses polymer and nanoparticle assembly in bulk and under confined conditions or influenced by an external field, including thin films, inorganic-organic hybrids, or nanofibers. Volume 8 expands these concepts focusing on applications in advanced technologies, e.g. in electronic industry and centers on combination with top down approach and functional properties like conductivity. Another type of functionality that is of rapidly increasing importance in polymer science is introduced in volume 9. It deals with various aspects of polymers in biology and medicine, including the response of living cells and tissue to the contact with biofunctional particles and surfaces. The last volume is devoted to the scope and potential provided by environmentally benign and green polymers, as well as energy-related polymers. They discuss new technologies needed for a sustainable economy in our world of limited resources. Provides broad and in-depth coverage of all aspects of polymer science from synthesis/polymerization, properties, and characterization methods and techniques to nanostructures, sustainability and energy, and biomedical uses of polymers Provides a definitive source for those entering or researching in this area by integrating the multidisciplinary aspects of the science into one unique, up-to-date reference work Electronic version has complete cross-referencing and multi-media components Volume editors are world experts in their field (including a Nobel Prize winner)