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Author: R. Alan Jones
Publisher: Elsevier
ISBN: 0080540155
Category : Technology & Engineering
Languages : en
Pages : 591
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Book Description
This text provides experimental methods for a wide range of organic reactions, systematically arranged according to reaction type, and describes the advantages and limitations of the procedures. Traditional methods to speed up organic reactions involve energy-consuming processes and costly and environmentally "unfriendly" solvents. Additionally, isolation of the product requires energy and time-consuming purification processes. A simple solution, especially for reactions involving anionic reactants, is the use of phase-transfer catalysis. Quaternary ammonium cations have the ability to transfer the anionic reactants as non-solvated ion-pairs from aqueous media into organic media. The resultant effect is to increase the rate of the organic reaction by enhancing the reactivity of the anionic species and increasing the encounter rate with the organic substrate. Side reactions are frequently eliminated so that the overall yield of the desired product is increased.Quaternary Ammonium Salts presents procedures for reducing reaction times and the need for extreme conditions, which are frequently encountered under standard reaction procedures.This is the only book to be published on quaternary ammonium salts. Best Synthetic Methods volumes allow the practicing synthetic chemist to choose between all the alternatives and assess their real advantages and limitations. Each volume of the series deals with a particular topic from a practical point of view, giving detailed examples and precise experimental directions and hints. With the emphasis on laboratory use, these volumes represent a comprehensive and practical guide to modern synthetic organic chemistry.
Author: R. Alan Jones
Publisher: Elsevier
ISBN: 0080540155
Category : Technology & Engineering
Languages : en
Pages : 591
Get Book Here
Book Description
This text provides experimental methods for a wide range of organic reactions, systematically arranged according to reaction type, and describes the advantages and limitations of the procedures. Traditional methods to speed up organic reactions involve energy-consuming processes and costly and environmentally "unfriendly" solvents. Additionally, isolation of the product requires energy and time-consuming purification processes. A simple solution, especially for reactions involving anionic reactants, is the use of phase-transfer catalysis. Quaternary ammonium cations have the ability to transfer the anionic reactants as non-solvated ion-pairs from aqueous media into organic media. The resultant effect is to increase the rate of the organic reaction by enhancing the reactivity of the anionic species and increasing the encounter rate with the organic substrate. Side reactions are frequently eliminated so that the overall yield of the desired product is increased.Quaternary Ammonium Salts presents procedures for reducing reaction times and the need for extreme conditions, which are frequently encountered under standard reaction procedures.This is the only book to be published on quaternary ammonium salts. Best Synthetic Methods volumes allow the practicing synthetic chemist to choose between all the alternatives and assess their real advantages and limitations. Each volume of the series deals with a particular topic from a practical point of view, giving detailed examples and precise experimental directions and hints. With the emphasis on laboratory use, these volumes represent a comprehensive and practical guide to modern synthetic organic chemistry.
Author: Y. Sasson
Publisher: Springer Science & Business Media
ISBN: 9400900236
Category : Technology & Engineering
Languages : en
Pages : 579
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Book Description
Phase transfer catalysis is a sophisticated chemical technique which can be used to perform a variety of chemical reactions under mild conditions and with improved control. Since the concept was developed, both the theoretical and practical synthetic applications have seen considerable development, to the point where the technique can be applied to many areas of chemistry. Thus, phase transfer methods are now utilized in many applications, from research chemistry to full-scale production, where the benefits of faster, cleaner and more selective reactions are required. In this new book, the editors have brought together a range of contributors, each of whom is working at the forefront of the technology, to provide a clear, concise and ahtoritative review of this important area of chemistry. Industrial and academic chemists working on the synthesis, scale-up, production or analysis of a wide range of chemical products will find this book an essential reference on phase transfer technology.
Author: Lin Ye
Publisher: CRC Press
ISBN: 9780878497669
Category : Science
Languages : en
Pages : 244
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Book Description
In recent years significant progress has been made in many areas of polymer blend and polymer matrix composite science and technology. This volume comprises a selection of refereed papers which cover the state-of-the-art, and predict future trends in polymer blend and composite research; including established, as well as innovative, applications and new directions for these novel materials. The contents are grouped into five sections: theoretical and experimental studies of manufacturing processes; structure-property relationships; damage mechanics and characterization; fracture and fatigue; and toughening and strengthening mechanisms. The articles present detailed results and new findings concerning these topics. Alltogether they present an authoritative view of recent research in the important fields of polymer blend and composite use. 1. Processing and Manufacturing. 2. Structure-Property Relationships. 3. Damage Mechanics and Characterization. 4. Fracture and Fatigue. 5. Toughening and Strengthening Mechanisms.
Author: Fintan Moriarty
Publisher: Springer Science & Business Media
ISBN: 1461410312
Category : Technology & Engineering
Languages : en
Pages : 564
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Book Description
Biomaterials associated infection (BAI) is one of the most common complications associated with implantation of any biomaterial regardless of form or function. These infections usually involve bacterial colonization and biofilm formation on the biomaterial itself, rendering the infection impervious to antimicrobials and host defenses. In addition, it is becoming increasingly clear that infection of the surrounding tissues also plays an important role in BAI, and that the infection may be influenced by the composition and design of the implanted biomaterial. In this book, worldwide leaders in the field address this critical problem in the translation of biomaterials research into clinical practice. The book begins with an emphasis on the latest research in the pathogenesis of BAI from microbiological, immunological, and materials science perspectives. The current state of the art in antimicrobial activation of biomaterials through surface modification and the incorporation of antimicrobial agents is then discussed. In the concluding chapters, successful translation of a selection of antimicrobial technologies from preclinical research into clinical use is described alongside a discussion of the utility of these devices and perspectives for future development. This book is essential reading for researchers and clinicians who are interested in understanding the fundamentals of BAI, the latest in antimicrobial materials research, and the state of the art in clinically available antimicrobial containing medical devices.
Author: Keiji Maruoka
Publisher: John Wiley & Sons
ISBN: 9783527318421
Category : Science
Languages : en
Pages : 236
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Book Description
Edited by the leading expert on the topic, this is the first book to present the latest developments in this exciting field. Alongside the theoretical aspects, the top contributors provide practical protocols to give readers additional important information otherwise unavailable. A must for every synthetic chemist in academia and industry.
Author: E. Rizzarelli
Publisher: Springer Science & Business Media
ISBN: 9401136203
Category : Science
Languages : en
Pages : 231
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Book Description
Author: Imma Ferrer
Publisher: John Wiley & Sons
ISBN: 047042995X
Category : Science
Languages : en
Pages : 281
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Book Description
Time of flight mass spectrometry identifies the elements of a compound by subjecting a sample of ions to a strong electrical field. Illuminating emerging analytical techniques in high-resolution mass spectrometry, Liquid Chromatography Time-of-Flight Mass Spectrometry shows readers how to analyze unknown and emerging contaminants—such as antibiotics, steroids, analgesics—using advanced mass spectrometry techniques. The text combines theoretical discussion with concrete examples, making it suitable for analytical chemists, environmental chemists, organic chemists, medicinal chemists, university research chemists, and graduate and post-doctorate students.
Author: Mitsutoshi Setou
Publisher: Springer Science & Business Media
ISBN: 4431094253
Category : Science
Languages : en
Pages : 252
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Book Description
Addressing the widespread need for a practical guide to imaging mass spectrometry (IMS), this book presents the protocols of IMS technology. As that technology expands, research groups around the world continue its development. Pharmaceutical companies are using IMS for drug analyses to study pharmacokinetics and medical properties of drugs. Drug research and disease-related biomarker screening are experiencing greater use of this technology, with a concurrent increase in the number of researchers in academia and industry interested in wider applications of IMS. Intended for beginners or those with limited experience with IMS technology, this book provides practical details and instructions needed for immediate know-how, including the preparation of animal tissue samples, the application of a matrix, instrumental operations, and data analysis, among others. By describing the foundations of IMS, this volume contributes to the ongoing development of the field and to progress in human health.
Author: Patricia L. Keen
Publisher: John Wiley & Sons
ISBN: 0470905425
Category : Science
Languages : en
Pages : 634
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Book Description
Examines effects of the environmental distribution of antimicrobial resistance genes on human health and the ecosystem Resistance genes are everywhere in nature—in pathogens, commensals, and environmental microorganisms. This contributed work shows how the environment plays a pivotal role in the development of antimicrobial resistance traits in bacteria and the distribution of resistant microbial species, resistant genetic material, and antibiotic compounds. Readers will discover the impact of the distribution in the environment of antimicrobial resistance genes and antibiotics on both the ecosystem and human and animal health. Antimicrobial Resistance in the Environment is divided into four parts: Part I, Sources, including ecological and clinical consequences of antibiotic resistance by environmental microbes Part II, Fate, including strategies to assess and minimize the biological risk of antibiotic resistance in the environment Part III, Antimicrobial Substances and Resistance, including antibiotics in the aquatic environment Part IV, Effects and Risks, including the effect of antimicrobials used for non-human purposes on human health Recognizing the intricate links among overlapping complex systems, this book examines antimicrobial resistance using a comprehensive ecosystem approach. Moreover, the book's multidisciplinary framework applies principles of microbiology, environmental toxicology, and chemistry to assess the human and ecological risks associated with exposure to antibiotics or antibiotic resistance genes that are environmental contaminants. Each chapter has been written by one or more leading researchers in such fields as microbiology, environmental science, ecology, and toxicology. Comprehensive reference lists at the end of all chapters serve as a gateway to the primary research in the field. Presenting and analyzing the latest findings in a field of growing importance to human and environmental health, this text offers readers new insights into the role of the environment in antimicrobial resistance development, the dissemination of antimicrobial resistant genetic elements, and the transport of antibiotic resistance genes and antibiotics.
Author: Hans-Jürgen Arpe
Publisher: Wiley-VCH
ISBN: 9783527201310
Category : Science
Languages : en
Pages : 0
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Book Description
For more than eighty years, the name Ullmann's Encyclopedia of Industrial Chemistry has been synonymous with information of the highest quality. Chemists and engineers in industry and academia know that they can rely on the knowledge and expertise of around 3,000 first-class authors. The Fifth Edition, now available in print as a complete set, is a monumental reference work containing about 1,000 major articles, more than 16 million words, 30,000 figures, 10,000 tables, and innumerable references to further sources of information. Ullmann's users worldwide testify that this superb encyclopedia contains the most complete and up-to-date coverage of chemical technology currently available, including economic aspects, production, transportation, and toxicology. Ullmann's is unsurpassed in terms of organization and presentation. The encyclopedia consists of 37 volumes: 28 "A" volumes, 8 "B" volumes, and one cumulative Index volume. Volumes A1 - A28 contain alphabetically ordered articles on industrial chemicals, product groups, and production processes. Volumes B1 - B8 describe in detail the principles of chemical engineering, new and proven analytical methods, and the essentials of environmental protection technology. "This is a major work, which will prove immensely valuable to institutions and authorities related to the chemical industry." - Chemistry & Industry "...no science or engineering library should be without it." - Angewandte Chemie "Ullmann's might well be preferred...because of its many convenience features and excellent organisation." - Chemical Engineering
