Antioxidant Polymers

Antioxidant Polymers PDF Author: Giuseppe Cirillo
Publisher: John Wiley & Sons
ISBN: 1118445511
Category : Technology & Engineering
Languages : en
Pages : 601

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Book Description
Antioxidant Polymers is an exhaustive overview of the recent developments in the field of polymeric materials showing antioxidant properties. This research area has grown rapidly in the last decade because antioxidant polymers have wide industry applications ranging from materials science to biomedical, pharmaceuticals and cosmetics.

Antioxidant Polymers

Antioxidant Polymers PDF Author: Giuseppe Cirillo
Publisher: John Wiley & Sons
ISBN: 1118445511
Category : Technology & Engineering
Languages : en
Pages : 601

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Book Description
Antioxidant Polymers is an exhaustive overview of the recent developments in the field of polymeric materials showing antioxidant properties. This research area has grown rapidly in the last decade because antioxidant polymers have wide industry applications ranging from materials science to biomedical, pharmaceuticals and cosmetics.

Plastics Additives

Plastics Additives PDF Author: G. Pritchard
Publisher: Springer Science & Business Media
ISBN: 9401158622
Category : Technology & Engineering
Languages : en
Pages : 650

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Book Description
Although plastics are extremely successful commercially, they would never reach acceptable performance standards either in properties or processing without the incorporation of additives. With the inclusion of additives, plastics can be used in a variety of areas competing directly with other materials, but there are still many challenges to overcome. Some additives are severely restricted by legislation, others interfere with each other-in short their effectiveness varies with circumstances. Plastics Additives explains these issues in an alphabetical format making them easily accessible to readers, enabling them to find specific information on a specific topic. Each additive is the subject of one or more articles, providing a suffinct account of each given topic. An international group of experts in additive and polymer science, from many world class companies and institutes, explain the recent rapid changes in additive technology. They cover novel additives (scorch inhibitors, compatibilizers, surface-modified particulates etc.), the established varieties (antioxidants, biocides, antistatic agents, nucleating agents, fillers, fibres, impact modifiers, plasticizers) and many others, the articles also consider environmental concerns, interactions between additives and legislative change. With a quick reference guide and introductory articles that provide the non-specialist and newcomer with relevant information, this reference book is essential reading for anyone concerned with plastics and additives.

Handbook of Antioxidants

Handbook of Antioxidants PDF Author: George Wypych
Publisher: ChemTec Publishing
ISBN: 1927885590
Category : Science
Languages : en
Pages : 244

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Book Description
Handbook of Antioxidants provides a wealth of information on the mechanics, practical effects and applications of a wide range of antioxidants. The book starts by introducing the general concepts relating to antioxidants and their application, then segues into a discussion on existing natural and synthetic antioxidants, characterizing their general properties and application. Formation and action of oxidizing species in living organisms, ambient air, industrial environments, and chemical reactions are covered next. Subsequent chapters cover the theories and mechanisms of stabilization, performance indicators, antioxidant selection, degradation and stabilization of different polymers and rubbers, specific effects on other components of formulation, and analytical methods. This book is an excellent companion to the Databook of Antioxidants which has also been published recently. Both books supplement each other without repeating the same information - one contains data another theory, mechanisms of action, practical effects and implications of application.

Oxidative Stress and Biomaterials

Oxidative Stress and Biomaterials PDF Author: Thomas Dziubla
Publisher: Academic Press
ISBN: 0128032707
Category : Technology & Engineering
Languages : en
Pages : 405

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Book Description
Oxidative Stress and Biomaterials provides readers with the latest information on biomaterials and the oxidative stress that can pose an especially troubling challenge to their biocompatibility, especially given the fact that, at the cellular level, the tissue environment is a harsh landscape of precipitating proteins, infiltrating leukocytes, released oxidants, and fluctuations of pH which, even with the slightest shift in stasis, can induce a perpetual state of chronic inflammation. No material is 100% non-inflammatory, non-toxic, non-teratogenic, non-carcinogenic, non-thrombogenic, and non-immunogenic in all biological settings and situations. In this embattled terrain, the most we can hope for from the biomaterials we design is a type of "meso-compatibility, a material which can remain functional and benign for as long as required without succumbing to this cellular onslaught and inducing a local inflammatory reaction. - Explores the challenges of designing and using biomaterials in order to minimize oxidative stress, reducing patterns of chronic inflammation and cell death - Brings together the two fields of biomaterials and the biology of oxidative stress - Provides approaches for the design of biomaterials with improved biocompatibility

Handbook of Preservatives

Handbook of Preservatives PDF Author: Michael Ash
Publisher: Synapse Info Resources
ISBN: 1890595667
Category : Chemical preservatives
Languages : en
Pages : 890

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Book Description
This handbook contains comprehensive information on more than 5000 trade names and generic chemicals and materials that are used in a broad range of formulations to prevent the contamination and decomposition of end products. Product degradation can be caused by exposure to oxygen, ozone, bacteria, molds, yeast, mildew, and fungi. The industries that depend on the proper selection of preserving chemicals and materials are diverse and include: plastics, elastomers, construction, paper/pulp, agriculture, textiles, paints and coatings, pharmaceutical, cosmetics, food, beverages.This handbook contains comprehensive information on a variety of preservatives available from major chemical manufacturers and can expedite the material selection process for chemists, formulators and purchasing agents by providing the answers to these questions:? Is the agent capable of inhibiting the detrimental effects of oxygen, ozone, or microbes to the extent necessary?? Is the agent's overall physical and chemical attributes compatible with the product or system being protected?? Can the agent remain stable under storage conditions and for the application requirements?? Is its safety in production and handling acceptable?? Does its level of toxicity meet environmental regulations?? Does it meet cost requirements?

Mechanisms of Polymer Degradation and Stabilisation

Mechanisms of Polymer Degradation and Stabilisation PDF Author: G. Scott
Publisher: Springer Science & Business Media
ISBN: 9401138389
Category : Technology & Engineering
Languages : en
Pages : 336

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Book Description
The purpose of this publication is two-fold. In the first place it is intended to review progress in the development of practical stabilising systems for a wide range of polymers and applications. A complemen tary and ultimately more important objective is to accommodate these practical developments within the framework of antioxidant theory, since there can be little question that further major advances in the practice of stabilisation technology will only be possible on a firm mechanistic foundation. With the continual increase in the number of commercial anti oxidants and stabilisers, often functioning by mechanisms not even considered ten years ago, there is a need for a general theory which will allow the potential user to predict the performance of a particular antioxidant structure under specific practical conditions. Any such predictive tool must involve a simplified kinetic approach to inhibited oxidation and, in Chapter 1, Denisov outlines a possible mechanistic approach with the potential to predict the most useful antioxidant to use and the limits of its usefulness. In Chapter 2, Schwetlick reviews the current state of knowledge on the antioxidant mechanisms of the phosphite esters with particular emphasis on their catalytic peroxidolytic activity. Dithiophosphate v vi PREFACE derivatives show a similar behaviour but for quite different reasons and, in Chapter 3, AI-Malaika reviews information available from analytical studies, particularly using 31p_NMR spectroscopy, to elucid ate the complex chemistry that leads to the formation of the antioxidant -active agents.

Engineering Biomaterials for Regenerative Medicine

Engineering Biomaterials for Regenerative Medicine PDF Author: Sujata K. Bhatia
Publisher: Springer Science & Business Media
ISBN: 1461410800
Category : Technology & Engineering
Languages : en
Pages : 350

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Book Description
Regeneration of tissues and organs remains one of the great challenges of clinical medicine, and physicians are constantly seeking better methods for tissue repair and replacement. Tissue engineering and regenerative medicine have been investigated for virtually every organ system in the human body, and progress is made possible by advances in materials science, polymer chemistry, and molecular biology. This book reviews the current status of biomaterials for regenerative medicine, and highlights advances in both basic science and clinical practice. The latest methods for regulating the biological and chemical composition of biomaterials are described, together with techniques for modulating mechanical properties of engineered constructs. Contributors delineate methods for guiding the host response to implantable materials, and explain the use of biologically-inspired materials for optimal biological functionality and compatibility. The book culminates in a discussion of the clinical applications of regenerative medicine. By integrating engineering and clinical medicine, Engineering Biomaterials for Regenerative Medicine examines how tissue engineering and regenerative medicine can be translated into successful therapies to bridge the gap between laboratory and clinic. The book will aid materials scientists and engineers in identifying research priorities to fulfill clinical needs, and will also enable physicians to understand novel biomaterials that are emerging in the clinic. This integrated approach also gives engineering students a sense of the excitement and relevance of materials science in the development of novel therapeutic strategies.

Handbook of Antioxidant Methodology

Handbook of Antioxidant Methodology PDF Author: Paul D Prenzler
Publisher: Royal Society of Chemistry
ISBN: 1839165340
Category : Science
Languages : en
Pages : 419

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Book Description
The field of antioxidant research has grown rapidly over the last 30 years and shows no sign of slowing down. In order to understand how antioxidants work, it is essential to understand how their activity is measured. However, antioxidant activity measurements are controversial and their value has been challenged. This book addresses a number of the controversies on antioxidant testing methods. Specifically, the book highlights the importance of context, helping the reader to decide what methods are most appropriate for different situations, how the results can be interpreted and what information may be inferred from the data. There are a multiplicity of methods for measuring activity, with no standardized method approved for in vitro or in vivo testing. In order to select an appropriate method, a thorough knowledge of the processes associated with reduction-oxidation is essential, leading to an improved understanding and use of activity measurements and the associated data. The book presents background information, in a unique style, which is designed to assist readers to grasp the fundamentals of redox processes, as well as thermodynamics and kinetics, which are essential to later chapters. Recovery and extraction of antioxidants from diverse matrices are presented in a clear and logical fashion along with methods used to determine antioxidant activity from a mechanistic perspective. Other chapters present current methodologies used for activity testing in different sample types ranging from foods and plants, to body fluids and even to packaging, but always with a strong emphasis on the nature of the sample and the underlying chemistry of the method. A number of emerging techniques for assessing antioxidant behaviour, namely, electrochemical methods, chip technology exploiting microfluidic devices, metabolomics plus studies of gene and protein expression, are examined. Ultimately, these techniques will be involved in generation of "big data" for which an understanding of chemometrics will be essential in drawing valid conclusions. The book is written to appeal to a wide audience, but will be particularly helpful for any researchers who are attempting to make sense of the vast literature and often conflicting messages on antioxidant activity.

Handbook for the Chemical Analysis of Plastic and Polymer Additives

Handbook for the Chemical Analysis of Plastic and Polymer Additives PDF Author: Michael Bolgar
Publisher: CRC Press
ISBN: 1439860750
Category : Science
Languages : en
Pages : 626

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Book Description
Polymers have undoubtedly changed the world through many products that improve our lives. However, additives used to modify the overall characteristics of these materials may not be fully disclosed or understood. These additives may present possible environmental and health hazards. It is important to monitor consumer products for these compounds u

Food Packaging and Preservation

Food Packaging and Preservation PDF Author: Alexandru Mihai Grumezescu
Publisher: Academic Press
ISBN: 0128112654
Category : Technology & Engineering
Languages : en
Pages : 590

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Book Description
Food Packaging and Preservation, Volume 9 in the Handbook of Food Bioengineering series, explores recent approaches to preserving and prolonging safe use of food products while also maintaining the properties of fresh foods. This volume contains valuable information and novel ideas regarding recently investigated packaging techniques and their implications on food bioengineering. In addition, classical and modern packaging materials and the impact of materials science on the development of smart packaging approaches are discussed. This book is a one-stop-shop for anyone in the food industry seeking to understand how bioengineering can foster research and innovation. - Presents cutting technologies and approaches utilized in current and future food preservation for both food and beverages - Offers research methods for the creation of novel preservatives and packaging materials to improve the quality and lifespan of preserved foods - Features techniques to ensure the safe use of foods for longer periods of time - Provides solutions of antimicrobial films and coatings for food packaging applications to enhance food safety and quality