Welcome to Loot.co.za!
Sign in / Register |Wishlists & Gift Vouchers |Help | Advanced search
|
Your cart is empty |
|||
Books > Science & Mathematics > Chemistry
Fire is a continuing problem around the world and it must be controlled. This ACS Symposium Series volume addresses recent advances in fire retardancy and examines progress that has been made in controlling fires. It focuses on the chemistry of the polymers themselves and how those chemical structures yield particular heat release, thermal decomposition products, and full-scale fire performance. The book consists of 5 sections. First, the Editors produce an overview to put the latest research into perspective. The first third of the book focuses on Nanocomposites and Flame Retardancy and represents the current state of the field. The second third of the book is devoted to Polymer Flammability Measurement and Mechanisms. The remainder of the book will is equally divided between New Flame Retardant Chemistry and Recent Developments in Flame Retardant Materials. Each of the 4 technical sections is preceded by a short overview provided by the editors.
The Nobel Prize is the only scientific prize that has achieved worldwide recognition among the general public. Each year, announcement of the prizes is covered by the national news media, and countries and universities brag about how many Nobel Prize winners they have. As of 2015, 172 individuals have received the Nobel Prize in chemistry. This book explores the reasons why the Nobel Prize has not been awarded to various deserving chemists over the years, and points specifically to eleven deceased chemists in particular who did not receive the Nobel Prize in Chemistry.
This volume consists of written chapters taken from the
presentations at the symposium "100+ Years of Plastics: Leo
Baekeland and Beyond," held March 22, 2010, at the 239th ACS
National Meeting in San Francisco. The symposium celebrates the
100th anniversary of the formation of General Bakelite Corp., which
was preceded by Leo Baekland's synthesis of Bakelite in 1907 and
the unveiling of the Bakelite process in 1909. It is quite
reasonable to use the synthesis of Bakelite as the starting point
of the Age of Plastics. Indeed, Time magazine in its June 14, 1999,
issue on the 100 most influential people of the 20th century chose
Leo Baekeland and his Bakelite synthesis as the sole representative
of chemistry.
The role of the Maillard reaction in forming flavors from amino
acid and sugar precursors has been studied for many years. To
establish the basic chemistry of the reaction, researchers have
used model systems, often solutions of a single amino acid with a
single sugar. Despite the apparent simplicity of the system,
heating such a solution can generate tens if not hundreds of
compounds, which requires careful and time-consuming analysis to
identify and quantify each component.
This third volume of NMR Spectroscopy in the Undergraduate Curriculum continues the work we started with the first and second volumes in providing effective approaches for using nuclear magnetic resonance spectrometers as powerful tools for investigating a wide variety of phenomena at the undergraduate level. This volume focuses on upper-level courses and NMR spectroscopy across the curriculum. The applications and strategies in this volume will be helpful to those who are looking to transform their curriculum by integrating more NMR spectroscopy, to those who might not have considered NMR spectroscopy as a tool for solving certain types of problems, or for those seeking funding for a new or replacement NMR spectrometer.
This volume is an attempt to educate, to provide a source of information, knowledge, and wisdom to the person who has spent so much time and energy on his or her schooling. The Council for Chemical Research (CCR) and the American Chemical Society (ACS) have both spent considerable effort over the past decades focusing on how to ensure that graduate education in the chemical sciences remains at the absolute highest caliber, and produces the best possible professionals. In spite of notable efforts from both organizations to prepare graduate students for the professional world, neither has specifically asked what a person needs to be successful once they have both the Ph.D. and the first job in hand. Put succinctly, there is much more to being successful in a career in chemistry than just the hard-earned Ph.D. degree. What You Need for the First Job, Besides the Ph.D. in Chemistry is based on a symposium of the same name held at the 246th National Meeting of the American Chemical Society, which took place in Indianapolis, Indiana in September, 2013. This book is the result of seeds that were planted during numerous informal conversations at the annual meetings of the CCR, as well as during such discussions at national and regional meetings of the ACS, and at the ACS employment clearing houses. The authors felt that the same intense focus a person needs to earn a Ph.D. might actually work against the attention to other details needed in order to be successful once he or she has obtained a position. Leaders want to ensure that new hires are working effectively toward tenure, are quickly becoming productive members of their corporate team, or are well integrated into their government laboratory research group. While it is easy to lump factors other than technical competence in one's job under the term "soft skills," this is an oversimplification. This book represents an attempt to have voices from all three pillars of the chemical enterprise - academia, industry, and government laboratories - heard in terms of relating what is important for their newly hired Ph.D.-holders. What You Need for the First Job, Besides the Ph.D. in Chemistry will be a valuable resource for first-time job seekers, as well as those with aspirations of a future career in the chemical sciences.
This ACS Symposium Series is the product of a symposium held at the 241st National Meeting of the American Chemical Society in Anaheim, CA on March 27-31, 2011. It includes chapters on new biobased building blocks such as the furandicarboxylic acid, polyesters and polyamides from adipic, succinic and sebacic acids with aliphatic diols such as 1,3-propylene glycol, 1,4-butanediol, 1,12-dodecylenediol and isosorbide. The conversion of hydroxymethylfurfural, the dehydration product of hexose sugars, to succinic acid and 1,4-butanediol to produce poly(butylene succinate) is described in one chapter. Also the synthesis of new polymers from plant-derived olefinic monomers such as tulipalin A and studies of composites from cotton by-products are featured in other chapters. There is a strong emphasis on biocatalytic synthesis and polymerization within the book. Chapter topics include the synthesis of ?-hydroxyfatty acids and polymers therefrom, an interesting discussion on the structural differences of the products of the biocatalytic and chemical catalytic synthesis of polyesters from oleic diacid and glycerol and the ability to produce polylactic acid (PLA) and PLA-PHA copolyesters within a "microbial cell factory". Other areas of interest explored in other chapters include recent developments of biobased polymer fibers and oleate-based pressure sensitive adhesives and composites. One chapter describes a large increase in cold-drawn fiber tensile strength by the blending of a small amount of ultrahigh molecular weight (MW) poly(3-hydroxybutyrate) with a much lower MW 3-hydroxybutyrate polymer. The addition of a rubber and inorganic fillers to normally brittle PLA was found to dramatically improve its ductility. Finally, there are several chapters on seed oil-based polyurethanes, one on fibers from soy proteins and composites from starch.
This book will explore our forests as the most readily available and renewable source of carbon as well as the building block of chemicals, plastics, and pharmaceuticals as the next 100 years gradually push consumers toward alternate sources of chemicals. Meeting these needs from trees requires that new chemistry be developed so that plant materials is converted to commodity chemicals. This focused discussion on ongoing global efforts at creativity using forest and biomass based renewable materials will include six different mechanisms for bringing about change on this very innovative topic.
For more than a century, national and international governing bodies have had some involvement in regulating the quality and safety of food during production and delivery. Since the beginnings of this "modern" food regulation in the early 20th century, the way that food is produced, packaged and distributed has changed drastically. It is difficult to determine if technological advances in the areas of polymer science, refrigeration, and transportation have driven the globalization of the food supply or if the food industry has drawn from these technologies to satisfy consumer's desire and need. Ensuring the safety of food requires a complex and ever-changing set of interactions between producers, distributors, consumers and regulators. As advances are made in packaging and food additives, as food distributions systems evolve to meet consumer needs, or as these respond to environmental and population changes, adjustments to regulatory systems may become necessary. Analytical, environmental and materials chemistry can often play important roles in responding to these changes and in continuing to help with the improvement of food safety and security. These five co-editors bring their respective expertise to the subject of the food system and the chemical advancements behind it.
Wine flavour chemistry is a complex and diverse field that ranges from the potently aromatic pyrazines to the complex polymeric tannins. Modern chemistry is now opening some doors to the mysteries of wine flavour, and this unique monograph is dedicated to current research developments. The book starts with the Riesling terpenes, which are responsible for floral aroma when new and the kerosene-like aroma that appears in old age, and with the chemically related norisprenoids found in Cabernet Sauvignon and Merlot. It includes three reports on flavours of microbial origin, particularly the effects of different yeast strains, and it looks at important factors in ageing, including acetalhyde, the contribution of oak, and problems with cork taint. It also explores in detail the relationship between winemaking techniques and the chemistry and taste attributes of phenolic compounds.
Assessing Exposures and Reducing Risks to People from the Use of Pesticides will focus on practices that have been developed in the past 10 years marked from the passage of the Food Quality Protection Act and other pertinent legislation (eg the Clean Air Act Amendments), which deal all, or in part with reducing risks associated with pesticides.
A major strength of American Chemical Society (ACS) is the large number of volunteers who help to grow and sustain the organization, from local sections to technical divisions, from regional to national meetings, from task forces to national committees, and from conducting research to writing and reviewing manuscripts for journals. Some of them spend literally thousands of hours on behalf of ACS and the global chemistry enterprise, helping students or fellow scientists, organizing meetings and symposia, and reaching out to the local communities. One of the people who excelled in these efforts was the late Prof. Ernest L. Eliel. For many years he taught at the University of Notre Dame and the University of North Carolina and was an acknowledged leader in organic stereochemistry and conformational analysis. He was also a leader at ACS, serving as ACS President in 1992 and Chair of ACS Board of Directors in 1987-89. Unfortunately Prof. Eliel died in 2008, but the ACS held a symposium in 2016 honoring his work. This book features two volumes highlighting stereochemistry and global connectivity, which represent two of the key legacies of Prof. Eliel. Because stereochemistry is a fundamental chemistry concept, ongoing research is carried out in different subfields of chemistry (such as organic, medicinal, carbohydrates, polymers), using various analytical techniques (such as NMR, X-ray crystallography, and circular dichroism). The two volumes of this book contain many research papers that represent cutting-edge research in all the above areas. Because chemistry is now a world-wide enterprise, global connectivity is important to chemistry practitioners, and the chapters on international activities should be of great interest as well.
This book is meant to be a companion volume for the ACS Symposium Series Book entitled Nuts and Bolts of Chemical Education Research. In the Nuts and Bolts book (edited by Diane M. Bunce and Renee Cole), readers were presented with information on how to conduct quality chemical education research. In the Myth book, exemplars of chemical education research are featured. In the cases where the chapter in the book is describing research that has already been published (typically in the Journal of Chemical Education), additional information is provided either in terms of research questions investigated that were not reported in the published article or background information on decisions made in the research that helped the investigation. The main focus of this type of discussion is to engage the reader in the reality of doing chemical education research including a discussion of the authors' motivation. It is expected that these two books could be used as textbooks for graduate chemical education courses showing how to do chemical education research and then providing examples of quality research.
This book focuses on broadly defined areas of chemical information science- with special emphasis on chemical informatics- and computer-aided molecular design. The computational and cheminformatics methods discussed, and their application to drug discovery, are essential for sustaining a viable drug development pipeline. It is increasingly challenging to identify new chemical entities and the amount of money and time invested in research to develop a new drug has greatly increased over the past 50 years. The average time to take a drug from clinical testing to approval is currently 7.2 years. Therefore, the need to develop predictive computational techniques to drive research more efficiently to identify compounds and molecules, which have the greatest likelihood of being developed into successful drugs for a target, is of great significance. New methods such as high throughput screening (HTS) and techniques for the computational analysis of hits have contributed to improvements in drug discovery efficiency. The SARMs developed by Jurgen and colleagues have enabled display of SAR data in a more transparent scaffold/functional SAR table. There are many tools and databases available for use in applied drug discovery techniques based on polypharmacology. The cheminformatics approaches and methodologies presented in this volume and at the Skolnik Award Symposium will pave the way for improved efficiency in drug discovery. The lectures and the chapters also reflect the various aspects of scientific enquiry and research interests of the 2015 Herman Skolnik award recipient.
We are becoming increasingly aware of the overwhelming pollution of our limited water resources on this planet. And while many contaminants originate from Mother Earth, most water pollution comes as a direct result of anthropogenic activities. This problem has become so immense that it threatens the future of all humanity. If effective measures to reduce and/or remediate water pollution and its sources are not found, it is estimated by UN that 2.7 billion people will face water shortage by 2025 as opposed to 1.2 billion people who do not have access to clean drinking water now. Therefore, development of novel green technologies to address this major problem represents a priority of the highest importance. This book discusses green chemistry and other novel solutions to the water pollution problems which includes some interesting applications of nanoparticles. Novel Solutions to Water Pollution is a useful and informative text for those engaged in issues of water quality and water pollution remediation at operational, administrative, academic, or regulatory levels.
In the past, the stability of milk and milk products was the primary consideration, but this is no longer the principal objective due to the evolution of modern sanitary practices as well as pasteurization. Today, the manufacture of dairy products of consistently good flavor and texture is crucial. In previous flavor studies, researchers identified hundreds of volatile compounds, with little or no attention paid to their sensory contribution to overall flavor of dairy products. The availability of powerful chromatographic separation techniques like high resolution gas chromatography in combination with mass spectrometry and olfactory detection ports have revolutionized the work on characterization of dairy flavor. This along with recent developments in sensory methods and our increased knowledge about the genomics of diary culture organisms have allowed great advancements in our understanding of dairy flavor chemistry. Flavor of Dairy Products covers the evolution of dairy flavor research and presents updated information in the areas of instrumental analysis, biochemistry, processing and shelf-life issues related to the flavor of dairy products.
This book addresses one of the most challenging problems that plagues the environmental field today-subsurface contamination. The past three decades have ushered in various methods for removal of organic and inorganic contaminants from the subsurface to varying degrees of effectiveness. Because of the site-to-site variability in the nature of contamination characteristics, the pattern of waste disposal and accidental releases, the site characteristics and thus contaminant behavior, and hydrologic conditions, predicting the effectiveness of one treatment method over another is a daunting task. Field demonstration of innovative technologies is a key step in their development, however, only after successful scale-up from laboratory testing. This book features chapters written by researchers who have linked laboratory- and field-scales in efforts to find creative, cost-effective methods for prediction of successful remediation of contaminated soil and ground water. State-of-the-art technologies using physicochemical removal methods and biological methods are discussed in the context of not only their effectiveness in remediating organic and inorganic wastes from various subsurface environments but also in terms of useful flask-scale methods for measuring and predicting their field-scale effectiveness. Chapters address sorption and hydrolysis of pesticides by organoclays, use of Fentons agents to destroy chlorinated solvents removed from the subsurface by granulated activated carbon, methanol flushing as a means of removing toxaphene from soils, natural attenuation as a method for effectiveness of remediation metals and biodegrading acid-mine drainage constituents, and biodegradation ofradiologically contaminated soils. Also addressed in this book are current and future methods of assessing microbiological activity potential and diversity and of modeling biodegradation, contaminant flux, and gaseous transport in the subsurface.
The American Chemical Society (ACS) Committee on Analytical Reagents sets the specifications for most chemicals used in analytical testing. Currently, the ACS is the only organization in the world that sets requirements and develops validated methods for determining the purity of reagent chemicals. These specifications have also become the de facto standards for chemicals used in many high-purity applications. Publications and organizations that set specifications or promulgate analytical testing methods-such as the United States Pharmacopeia and the U.S. Environmental Protection Agency-specify that ACS reagent-grade purity be used in their test procedures. The Eleventh Edition incorporates the "supplements" accumulated over the past eight years, removes some obsolete test methods, improves instructions for many existing ones, and also introduces some new methods. Overall, the safety, accuracy, or ease of use in specifications for about 70 of the 430 listed reagents has been improved, and seven new reagents have been added.
Dalton's theory of the atom is generally considered to be what made
the atom a scientifically fruitful concept in chemistry. To be
sure, by Dalton's time the atom had already had a two-millenium
history as a philosophical idea, and corpuscular thought had long
been viable in natural philosophy (that is, in what we would today
call physics).
Consumers, regulators, and the food industry increasingly require that foods comply not only with label descriptions of food content, but also with information regarding the food's origin. For example, the wine industry has a long history of labeling wines based on varietal, regional, or age (vintage)-related properties. However, regulatory agencies are now beginning to require methods to confirm this label information. Food retailers are also facing voluntary or mandatory labeling requirements that will indicate regional or country-of-origin, species and/or varietal information. As a result, development of reliable analytical methods to confirm the authenticity of the label information is needed. This book presents the latest research on food and wine authentication. The chapters are authored by leading international scientists whose research focuses on the development and application of analytical methodologies used for the authentication of food and beverages.
Revise smart and save! Our Revision Workbooks are designed to help students develop vital skills throughout the course in preparation for the exam with: One-to-one page match with the OCR AS/A level Chemistry Revision Guide so you can find the practice you need quickly and easily Skills building pages and practice questions in the style of the new exams Guided support and hints providing additional scaffolding, helping you avoid common pitfalls Full set of practice papers written to match the new specification exactly
Nanoscale Materials in Chemistry describes research on the
development of catalysts and adsorbents based on nanoscale
materials. It includes new fundamental research and applications,
beginning with a review of research on the development of nanoscale
metal oxides that have environmental applications. Information on
product development is described for selected products that have
been developed and commercialized.
This book is targeted for chemists and environmental scientists and
engineers who are engaged in understanding the chemistry of
high-valent iron (Ferrate) and in applications of chemical oxidants
to treat contaminants in water, wastewater, and industrial
effluents. This book will be of interest to biochemical engineers
and microbiologists who want to understand Ferrate's disinfection
performance. Additionally, the book will be of tremendous interest
to graduate students who are performing research on the
understanding of the mechanism of higher oxidation states of iron
and in developing innovative drinking water and wastewater
treatment technologies.
Inspired by the opportunities and challenges presented by rapid advances in the fields of retrieval of chemical and other scientific information, several speakers presented at a symposium, The History of the Future of Chemical Information, on Aug. 20, 2012, at the 244th Meeting of the American Chemical Society in Philadelphia, PA. Storage and retrieval is of undeniable value to the conduct of chemical research. The participants believe that past practices in this field have not only contributed to the increasingly rapid evolution of the field but continue to do so, hence the somewhat unusual title. Even with archival access to several of the presentations, a number of the presenters felt that broader access to this information is of value. Thus, the presenters decided to create an ACS Symposium book based on the topic, with the conviction that it would be valuable to chemists of all disciplines. The past is a moving target depending on the vagaries of technology, economics, politics and how researchers and professionals choose to build on it. The aim of The History of the Future of Chemical Information is to critically examine trajectories in chemistry, information and communication as determined by the authors in the light of current and possible future practices of the chemical information profession. Along with some additional areas primarily related to present and future directions, this collection contains most of the topics covered in the meeting symposium. Most of the original authors agreed to write chapters for this book. Much of the historical and even current material is scattered throughout the literature so the authors strived to gather this information into a discrete source. Faced with the rapid evolution of such aspects as mobile access to information, cloud computing, and public resource production, this book will be not only of interest but provide valuable insight to this rapidly evolving field, both to practitioners within the field of chemical information and chemists everywhere whose need for current and accurate information on chemistry and related fields is increasingly important.
The chapters in this monograph are contributions from the Advances in Quantum Monte Carlo symposium held at Pacifichem 2010, International Chemical Congress of Pacific Basin Societies. The symposium was dedicated to celebrate the career of James B. Anderson, a notable researcher in the field. Quantum Monte Carlo provides an ab initio solution to the Schroedinger equation by performing a random walk through configuration space in imaginary time. Benchmark calculations suggest that its most commonly-used variant, "fixed-node" diffusion Monte Carlo, estimates energies with an accuracy comparable to that of high-level coupled-cluster calculations. These two methods, each having advantages and disadvantages, are complementary "gold-standards" of quantum chemistry. There are challenges facing researchers in the field, several of which are addressed in the chapters in this monograph. These include improving the accuracy and precision of quantum Monte Carlo calculations; understanding the exchange nodes and utilizing the simulated electron distribution; extending the method to large and/or experimentally-challenging systems; and developing hybrid molecular mechanics/dynamics and Monte Carlo algorithms. |
You may like...
Low-Energy Nuclear Reactions and New…
Jan Marwan, Steven Krivit
Hardcover
R5,773
Discovery Miles 57 730
Inquiry-Based Experiments in Chemistry
Valerie Ludwig Lechtanski
Hardcover
R930
Discovery Miles 9 300
Integrating Information Literacy into…
Charity Lovitt, Kristen Shuyler, …
Hardcover
R4,793
Discovery Miles 47 930
Assessing Transformation Products of…
Joerg E. Drewes, Thomas Letzel
Hardcover
R4,782
Discovery Miles 47 820
Ionic Liquids - From Knowledge to…
Natalia Plechkova, Robin Rogers, …
Hardcover
R3,252
Discovery Miles 32 520
NMR Spectroscopy in the Undergraduate…
David Soulsby, Laura J. Anna, …
Hardcover
R5,426
Discovery Miles 54 260
|