Azo Polymers

Synthesis, Functions and Applications

Author: Xiaogong Wang

Publisher: Springer

ISBN: 366253424X

Category: Technology & Engineering

Page: 230

View: 3187

This book explores functional polymers containing aromatic azo chromophores in side-chain, main-chain and other parts of their structures, known as azo polymers and which share common photoresponsive properties. It focuses on the molecular architecture of azo polymers, the synthetic methods and their most important functions, such as photoinduced birefringence and dichroism, surface-relief-grating (SRG) formation, and light-driven deformation of liquid crystal elastomers. It combines a general survey of the subject and in-depth discussions of each topic, including numerous illustrations, figures, and photographs. Offering a balance between an introduction to the core concepts and a snapshot of hot and emerging topics, it is of interest to graduate students and researchers working in this and related fields. Xiaogong Wang is a Professor at the Department of Chemical Engineering, Tsinghua University, China.

Photoinduced Modifications of the Nonlinear Optical Response in Liquid Crystalline Azopolymers

Author: Raquel Alicante

Publisher: Springer Science & Business Media

ISBN: 3642317561

Category: Technology & Engineering

Page: 200

View: 2644

Nonlinear optical (NLO) phenomena such as frequency conversion have played a key role in the development of photonic technologies. This thesis reports a detailed study of the molecular response of a large variety of push-pull organic compounds using the Second Harmonic Generation technique, which will serve as a starting point for the investigation at the macroscopic scale of azobenzene-based liquid crystalline polymeric films and their blends with highly efficient NLO chromophores. These materials are designed with the aim of exploiting their photoadressability in order to tailor their nonlinear behaviour. The magnitude and symmetry of their NL response was successfully controlled via light irradiation and thermal treatments. Moreover, as a specific application, the recording of efficient NLO gratings was achieved.

Azo Functional Polymers

Functional Group Approach in Macromolec

Author: G. Sudesh Kumar

Publisher: CRC Press

ISBN: 9780877629368

Category: Technology & Engineering

Page: 158

View: 6517

This book provides a comprehensive, systematic presentation of technical textiles for the automotive market. Each application area is examined in extensive detail. Up-to-date information is provided on materials, design, properties and performance, finishing, use trends, and market requirements for each application area. The perspective is international, with information on different material uses and trends in different regions. The presentation is clear, concise and organized for convenient access of information. The text is well illustrated with clear photographs, flow charts, diagrams and other schematics-a total of 46 illustrations. Twenty tables provide useful market and properties data in convenient form. And almost 500 references provide a guide to the international literature on this subject. This publication will be a valuable information resource for all those involved in the research, development, design, and selection of technical textiles for automotive applications. This comprehensive new book provides up-to-date information on many types of Asian prepared foods-their origin, preparation methods, processing principles, technical innovation, quality factors, nutritional values, and market potential. Written by experts who specialize in the field, it includes information on Asian dietary habits and the health significance of Asian diets. Asian Foods also discusses differences in preparations and varieties among diverse Asian ethnic groups and regions, cultural aspects associated with the consumption of the products, and the market status or potential of more than 400 varieties of Asian foods. These foods include products made from rice, wheat, other starchy grains, soybeans, meat, poultry, fish, fruits, and vegetables, as well as functional foods and alcoholic beverages. This timely book will be of interest to food professionals in product development, dieticians interested in Asian diets and dietary habits, business developers seeking market potential for Asian prepared foods, and food science and human nutrition students who need supplemental information.

Printing on Polymers

Fundamentals and Applications

Author: Joanna Izdebska,Sabu Thomas

Publisher: William Andrew

ISBN: 0323375006

Category: Technology & Engineering

Page: 444

View: 3209

Printing on Polymers: Fundamentals and Applications is the first authoritative reference covering the most important developments in the field of printing on polymers, their composites, nanocomposites, and gels. The book examines the current state-of-the-art and new challenges in the formulation of inks, surface activation of polymer surfaces, and various methods of printing. The book equips engineers and materials scientists with the tools required to select the correct method, assess the quality of the result, reduce costs, and keep up-to-date with regulations and environmental concerns. Choosing the correct way of decorating a particular polymer is an important part of the production process. Although printing on polymeric substrates can have desired positive effects, there can be problems associated with various decorating techniques. Physical, chemical, and thermal interactions can cause problems, such as cracking, peeling, or dulling. Safety, environmental sustainability, and cost are also significant factors which need to be considered. With contributions from leading researchers from industry, academia, and private research institutions, this book serves as a one-stop reference for this field—from print ink manufacture to polymer surface modification and characterization; and from printing methods to applications and end-of-life issues. Enables engineers to select the correct decoration method for each material and application, assess print quality, and reduce costs Increases familiarity with the terminology, tests, processes, techniques, and regulations of printing on plastic, which reduces the risk of adverse reactions, such as cracking, peeling, or dulling of the print Addresses the issues of environmental impact and cost when printing on polymeric substrates Features contributions from leading researchers from industry, academia, and private research institutions

Smart Light-Responsive Materials

Azobenzene-Containing Polymers and Liquid Crystals

Author: Y. Zhao,Tomiki Ikeda

Publisher: John Wiley & Sons

ISBN: 9780470439081

Category: Technology & Engineering

Page: 485

View: 5110

This book reviews the cutting-edge significant research in the field of smart light-responsive materials based on azobenzene polymers and liquid crystals. Emphasis is placed on the discovery of new phenomena from the past 5 years, their underlying mechanisms, new functionalities, and properties achieved through rational design. Edited by leading authorities in the field, Zhao and Ikeda, the chapters are authored by an internationally-recognized team of experts from North America, Europe, and Asia. Smart Light-Responsive Materials will serve to catalyze new research that will lead this field over the next 5-10 years.

Trends in Optical Materials Research

Author: Owen G. Gardens

Publisher: Nova Publishers

ISBN: 9781600212901

Category: Science

Page: 266

View: 5199

This book is the newest research on the physical properties of optical materials used in all types of lasers and optical systems. The scope includes the most important optical materials, including crystals, glasses, polymers, metals, liquids, and gases. The properties detailed include both linear and non-linear optical properties, mechanical properties, thermal properties together with many additional special properties, such as electro-, magneto-, and elasto-optic properties.

Photoreactive Organic Thin Films

Author: Zouheir Sekkat,Wolfgang Knoll

Publisher: Elsevier

ISBN: 9780080479972

Category: Technology & Engineering

Page: 559

View: 6441

Wolfgang Knoll is a former Directory of Polymer research at the Max Planck Institute. He is extremely well know for his research in this area. Zouheir Sekkat was a Postdoctoral researcher at Max Planck working under Professor Knoll. With Knoll's involvement, we can be confident that the best people in this field will be contributing to the reference.

Functional Polymer Films, 2 Volume Set

Author: Wolfgang Knoll,Rigoberto C. Advincula

Publisher: John Wiley & Sons

ISBN: 3527638490

Category: Science

Page: 1128

View: 6124

Very thin film materials have emerged as a highly interesting and useful quasi 2D-state functionality. They have given rise to numerous applications ranging from protective and smart coatings to electronics, sensors and display technology as well as serving biological, analytical and medical purposes. The tailoring of polymer film properties and functions has become a major research field. As opposed to the traditional treatise on polymer and resin-based coatings, this one-stop reference is the first to give readers a comprehensive view of the latest macromolecular and supramolecular film-based nanotechnology. Bringing together all the important facets and state-of-the-art research, the two well-structured volumes cover film assembly and depostion, functionality and patterning, and analysis and characterization. The result is an in-depth understanding of the phenomena, ordering, scale effects, fabrication, and analysis of polymer ultrathin films. This book will be a valuable addition for Materials Scientists, Polymer Chemists, Surface Scientists, Bioengineers, Coatings Specialists, Chemical Engineers, and Scientists working in this important research field and industry.

Sol-gel and Polymer Photonic Devices

Author: Mark P. Andrews,S. Iraj Najafi,Society of Photo-optical Instrumentation Engineers

Publisher: Society of Photo Optical


Category: Technology & Engineering

Page: 451

View: 661

SPIE Critical Reviews cover a variety of optics-related topics.

Practical Holography

Author: Stephen A. Benton,Sylvia H. Stevenson,T. John Trout

Publisher: Society of Photo Optical


Category: Holography

Page: N.A

View: 8424


Optical Nano and Micro Actuator Technology

Author: George K. Knopf,Yukitoshi Otani

Publisher: CRC Press

ISBN: 1439840547

Category: Technology & Engineering

Page: 664

View: 8075

In Optical Nano and Micro Actuator Technology, leading engineers, material scientists, chemists, physicists, laser scientists, and manufacturing specialists offer an in-depth, wide-ranging look at the fundamental and unique characteristics of light-driven optical actuators. They discuss how light can initiate physical movement and control a variety of mechanisms that perform mechanical work at the micro- and nanoscale. The book begins with the scientific background necessary for understanding light-driven systems, discussing the nature of light and the interaction between light and NEMS/MEMS devices. It then covers innovative optical actuator technologies that have been developed for many applications. The book examines photoresponsive materials that enable the design of optically driven structures and mechanisms and describes specific light-driven technologies that permit the manipulation of micro- and nanoscale objects. It also explores applications in optofluidics, bioMEMS and biophotonics, medical device design, and micromachine control. Inspiring the next generation of scientists and engineers to advance light-driven technologies, this book gives readers a solid grounding in this emerging interdisciplinary area. It thoroughly explains the scientific language and fundamental principles, provides a holistic view of optical nano and micro actuator systems, and illustrates current and potential applications of light-driven systems.