Active Polymers

Author: Andreas Lendlein
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ISBN:
File Size: 21,91 MB
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The MRS Symposium Proceeding series is an internationally recognised reference suitable for researchers and practitioners.

Optically Active Polymers

Author: Pradip K. Dutta
Editor: Springer
ISBN: 9811026068
File Size: 30,41 MB
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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.

Optically Active Polymers

Author: E. Sélégny
Editor: Springer Science & Business Media
ISBN: 9400993781
File Size: 14,53 MB
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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.

Magneto Active Polymers

Author: Jean-Paul Pelteret
Editor: Walter de Gruyter GmbH & Co KG
ISBN: 3110418622
File Size: 28,10 MB
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From fabrication to testing and modeling this monograph covers all aspects on the materials class of magneto active polymers. The focus is on computational modeling of manufacturing processes and material parameters. As other smart materials, these elastomers have the ability to change electrical and mechanical properties upon application of magnetic fields. This allows for novel applications ranging from biomedical engineering to mechatronics.

Electrical And Optical Active Polymers

Author: Marian Kryszewski
Editor:
ISBN:
File Size: 12,63 MB
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Electromechanically Active Polymers

Author: Federico Carpi
Editor:
ISBN: 9783319317670
File Size: 36,18 MB
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Surface Chemistry Of Surfactants And Polymers

Author: Bengt Kronberg
Editor: John Wiley & Sons
ISBN: 1119961246
File Size: 15,97 MB
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This book gives the reader an introduction to the field of surfactants in solution as well as polymers in solution. Starting with an introduction to surfactants the book then discusses their environmental and health aspects. Chapter 3 looks at fundamental forces in surface and colloid chemistry. Chapter 4 covers self-assembly and 5 phase diagrams. Chapter 6 reviews advanced self-assembly while chapter 7 looks at complex behaviour. Chapters 8 to 10 cover polymer adsorption at solid surfaces, polymers in solution and surface active polymers, respectively. Chapters 11 and 12 discuss adsorption and surface and interfacial tension, while Chapters 13- 16 deal with mixed surfactant systems. Chapter 17, 18 and 19 address microemulsions, colloidal stability and the rheology of polymer and surfactant solutions. Wetting and wetting agents, hydrophobization and hydrophobizing agents, solid dispersions, surfactant assemblies, foaming, emulsions and emulsifiers and microemulsions for soil and oil removal complete the coverage in chapters 20-25.

Nanoparticles In Active Polymer Food Packaging

Author: Zlata Hrnjak-Murgic
Editor: Smithers Pira
ISBN: 1910242454
File Size: 67,35 MB
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Active polymer food packaging is packaging which has been designed to deliberately interact with food or with a direct food environment to reduce oxygen and moisture levels, preserve flavourings and the quality of the food. New concepts of active and intelligent packaging play an increasingly important role by offering numerous and innovative solutions for extending the shelf-life or for maintaining, improving or monitoring food quality and safety. This is the driving force for the food packaging industry's development of new and improved packaging concepts using nanoparticles.This book gives an overview of applications for various types of nanoparticles, such as different metal based substances, and explains their role in polymer food packaging.The book also elaborates the mechanism of activity of each type of nanoparticle, for example:- Antimicrobial activity- Oxygen absorption (scavengers)- Ultraviolet blocking properties- Water vapour permeabilityThe characterisation of polymer nanocomposite materials and the regulatory aspects of nanomaterials are also discussed.Information is provided about the polymers and polymer nanocomposites, and in addition, the book provides information about new food packaging materials with improved mechanical, barrier and antimicrobial properties to preserve the food during transport and storage.

Magneto Electro Active Polymers Material Properties And Structural Effects

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File Size: 11,23 MB
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Abstract: This contribution presents a constrained minimization formulation of incompressible finite‐strain magneto‐electro‐elasticity. We employ this formulation in multiscale (FE 2 ) simulations where we analyze the effective magneto‐electric coupling properties of soft‐matter based magneto‐electric composites. (© 2017 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim).

Biomedical Applications Of Electroactive Polymer Actuators

Author: Federico Carpi
Editor: John Wiley & Sons
ISBN: 9780470744680
File Size: 21,57 MB
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Giving fundamental information on one of the most promising families of smart materials, electroactive polymers (EAP) this exciting new titles focuses on the several biomedical applications made possible by these types of materials and their related actuation technologies. Each chapter provides a description of the specific EAP material and device configuration used, material processing, device assembling and testing, along with a description of the biomedical application. Edited by well-respected academics in the field of electroactive polymers with contributions from renowned international experts, this is an excellent resource for industrial and academic research scientists, engineers, technicians and graduate students working with polymer actuators or in the fields of polymer science.

Towards Modelling The Curing Process In Particle Filled Electro Active Polymers

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File Size: 67,71 MB
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Abstract A large actuation voltage is required to produce a desired mechanical deformation in dielectric elastomers. To reduce the amount of the actuation voltage, several mechanisms can be applied and the inclusion of high dielectric permittivity fillers in the matrix material in the uncured stage is one of them. Moreover, to obtain a maximum advantage from the high dielectric permittivity fillers, an electric field is applied during the curing process which helps the particles to align in a preferred direction. The stiffness gaining during curing is modelled by an appropriate constitutive relation where the temporal evolution of the material parameters is considered. In this paper we present a phenomenologically‐inspired large strain framework for simulating the curing process of polymers that can work under the use of an electro‐mechanically coupled load. (© 2015 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim).

Electroactive Polymers

Author: Muralisrinivasan Natamai Subramanian
Editor: Walter de Gruyter GmbH & Co KG
ISBN: 3110641062
File Size: 37,26 MB
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The book focuses on the development of high performance, high efficiency electroactive polymers (EAPs), and electromechanically active polymers by controlling molecular chemical structure and morphology for all applications. This book is ideal for academicians and researchers in polymer and materials science.

Electroactive Polymers For Robotic Applications

Author: Kwang J. Kim
Editor: Springer Science & Business Media
ISBN: 1846283728
File Size: 31,72 MB
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This book covers the fundamental properties, modeling, and demonstration of Electroactive polymers in robotic applications. It particularly details artificial muscles and sensors. In addition, the book discusses the properties and uses in robotics applications of ionic polymer–metal composite actuators and dielectric elastomers.

The Structure Of Polymers

Author: Mary Lucy Miller
Editor:
ISBN:
File Size: 55,33 MB
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Electrical And Optical Active Polymers

Author: M. Kryszewski
Editor:
ISBN:
File Size: 71,44 MB
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Polymers Biomaterials And Medical Applications

Author: Jacqueline I. Kroschwitz
Editor: Wiley-Interscience
ISBN:
File Size: 15,14 MB
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Comprises all of the original, complete articles related to biomedical applications of polymers found in the 19-volume Encyclopedia of Polymer Science and Engineering. Articles provide detailed information on properties, uses and methods of manufacture of polymers with biomedical applications. There are approximately 20 main entries, averaging 12,000 words in length, prepared by 30 leading authorities from industry, academia and research laboratories. Coverage includes drug delivery systems, prosthetic devices, contact lenses, medical packaging, dental applications, skin replacement and more, all supported by standards and specifications for materials.

Surface Active Polymers As Anti Infective And Anti Biofouling Materials

Author: Emily Margaret Parker
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File Size: 40,23 MB
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Probing The Electrochemical Dynamics Of Soluble Redox Active Polymers

Author: Mark Burgess
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File Size: 18,40 MB
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High Polymers

Author:
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File Size: 14,30 MB
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Polymer Characterization

Author: Geoffrey Allen
Editor: Pergamon
ISBN: 9780080362052
File Size: 74,13 MB
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Volume 1 describes polymer characterization and includes 37 chapters dealing with solution methods, separation methods, spectroscopic and related methods, diffraction and scattering methods, microscopy, and thermal methods.