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XXIVth International Congress of Pure and Applied Chemistry, Volume 2 contains lectures presented at the XXIVth International Congress of Pure and Applied Chemistry held at Hamburg, Federal Republic of Germany in September 1973. The book consists of papers discussing a wide range of subjects on pure and applied chemistry The compendium has papers that deal with sequences in nucleic acids, the structure and synthesis of a tyrosine transfer RNA gene, and fragments of phenylalanine and serine specific transfer ribonucleic acids. The text also presents papers covering topics on the chemistry of some mycotoxins, essential fatty acids and prostaglandins, and Organic - inorganic systems for the chemical modification of molecular nitrogen under mild conditions. Chemists will find the book highly interesting.

Macromolecular Chemistry—9 provides information pertinent to the fundamental aspects of macromolecular chemistry. This book discusses the structure, properties, morphology, chemical reactions, and compatibility of polymers. Organized into 16 chapters, this book begins with an overview of the methods for the determination of polymer compatibility by means of the mutual solvent method and a light-scattering technique. This text then examines certain urethane systems that are suitable for application in products usually made of black reinforced rubber with cord reinforcement. Other chapters consider polycyclotrimerization as a route to the synthesis of polymers of different structures containing carbo- or hetero-cyclic rings in the chain. This book discusses as well the separation of a binary organic liquid mixture by hyperfiltration. The final chapter deals with a model for the growth of crazes in the presence of liquids. This book is a valuable resource for chemists, scientists, mechanical engineers, researchers, and laboratory workers.

Macromolecular Microsymposia–XII and XIII provides information pertinent to the fundamental aspects of polymers and polymer solutions. This book discusses the structures in polymer solutions and the transformations of functional groups in polymers. Organized into two parts encompassing 15 chapters, this book begins with an overview of the method for the determination of the structure of block copolymers in concentrated solution and in the dry state. This text then examines the liquid crystalline mesophases of the cholesteric type where one requirement is the existence of chiral single molecules. Other chapters consider phospholipids and glycolipids, which are significant component of the structure of many cell membranes. This book discusses as well the organized structures of some synthetic macromolecules in gels and solutions. The final chapter deals with the technique for studying the effect of the excluded volume on the probability of cyclic chain conformations. This book is a valuable resource for chemists.

Chemical Transformations of Polymers provides information pertinent to the fundamental structure and aspects of the chemical transformation of polymers. This book examines several experiments for the chemical transformation of polymers, which start from the assumption that the reactivity of a functional group in a macromolecule has to be similar as one in a low molecular compound. Organized into 19 chapters, this book begins with an overview of the various photochromic systems that have been used in polymer chemistry. This text then examines the three types of stable polymers with unpaired electrons, including polyradical ions, neutral polyradicals, and polymeric charge transfer complexes. Other chapters consider the kinetic laws and traits of migration mechanisms of free valence in the process of decay of free radicals in polymers. The final chapter deals with the complicated reaction of the degradation of polymers induced by the presence of metal compounds. This book is a valuable resource for chemists, scientists, and physiochemical researchers.

An Introduction to Biochemistry, Second Edition provides information pertinent to the fundamental aspects of biochemistry. This book presents several analytical methods, including the citrulline reaction for proteins and the diffusion test for acetone. Organized into two parts encompassing 25 chapters, this edition begins with an overview of the general composition of the organism and the chemical characteristics of the chief organic and inorganic compounds that enter into its structure. This text then examines the chemical composition of the tissues and physiological systems. Other chapters consider the occurrence and identification of several pathological constituents of urine, which presents features of biochemical interest. This book discusses as well the significance and analytical reactions of the bile acids and esters. The final chapter deals with the internal environment, which in the higher animal is represented by the blood and the cerebrospinal and other tissue fluids. This book is a valuable resource for biochemists.

Organic Solid-State Chemistry–2 presents the solid state reactions in molecular crystals. This book discusses the correlations of the chemical structures of products from organic solid state reactions with the molecular packing in the reactant crystal structures. Organized into 10 chapters, this book begins with an overview of the molecular behavior after the chemical transition state. This text then examines the electron paramagnetic resonance methods, which offer many features in connection with the study of chemical reactions in which a paramagnetic species is a product or a reactant. Other chapters consider the interpretation of radiationless transitions, thermal reactions, and photochemical decompositions and rearrangements. The final chapter deals with the experimental results concerning electron and hole production in anthracene crystals, with emphasis on the relevance of these studies to the fundamental question of the nature of the excess electron states in these low mobility crystals. This book is a valuable resource for solid state chemists, photochemists, spectroscopists, scientists, and research workers.

The Characterization of Chemical Purity: Organic Compounds focuses on the processes, methodologies, and reactions involved in chemical purity. The selection first offers information on the concept of purity and its bearing on methods used to characterize purity and thermal methods, including general observations on impurity determination, freezing and melting phenomena, and classification of thermal methods of purity control. The manuscript also takes a look at density measurements, refractive index, and vapor pressure and boiling temperature measurements. The book ponders on chromatography and mass spectrometry. Discussions focus on chromatograms, testing of purity, quantitative and qualitative analysis, and liquid chromatography. The text also reviews optical, Raman, and nuclear magnetic resonance spectroscopy. Topics include infra-red (vibrational) spectra, experimental techniques, and nature of the Raman effect. Chemical and physical measurements, calibration of instruments, availability of standard reference materials, and value of human effort are discussed. The manuscript is a dependable reference for readers interested in chemical purity.

Carbohydrate Chemistry – VI (Madison 1972) covers the proceedings of the Sixth International Symposium on Carbohydrate Chemistry, held in Madison, USA on August 14-18, 1972. Chapter 1 focuses on the study of complex formation of sugar-metal complexes using proton magnetic resonance spectroscopy. Chapter 2 describes the three types of reaction in the synthesis of fluoro sugars, namely, nucleophilic displacements with fluoride salts, epoxide cleavage, and glycal addition. Chapter 3 discusses the influence of pure, applied, and analytical research studies on the changes in carbohydrate marketing and industrial sugar production. Chapter 4 examines the biosynthesis of chondroitin sulfate, which exemplifies the formation of connective tissue polysaccharides. This chapter also considers the properties and substrate specificities of enzymes used in the biosynthesis. Chapter 5 explores the developments in cellulose and related polysaccharides found in plant cell walls. This book will be of great benefit to carbohydrate chemists and researchers.

The Chemistry of Natural Products: 6 discusses some of the advances in the chemistry of sesquiterpenic lactones. This book presents the studies on terpenoids isolated from Compositae. Organized into 10 chapters, this book begins with an overview of the revised structures of some guaianolides and germacranolides. This text then examines the advances in the field of steroidal alkaloids and sapogenins possessing the C27-carbon skeleton of cholestane. Other chapters consider the usefulness of steroidal glycosides of digitalis as life-saving products. This book discusses as well the microbiological oxidation of the five-membered ether sesquiterpenes guaioxide and liguroxide using Mucor parasiticus. The final chapter deals with the application of hypofluorites, particularly trifluoromethyl hypofluorite, in the synthesis of fluorinated steroids. This book is a valuable resource for organic chemists, phytochemists, plant biochemists, botanists, and other scientists. Students and research workers who are interested in the chemistry of natural products will also find this book extremely useful.

Macromolecular Chemistryâ€8 focuses on the molecular configuration of polymers, charge-transfer complexes, polymerization reactions, molecular weight fractionation, and polymer systems. The selection first offers information on molecular configuration in bulk polymers and control of monomer reactivity in copolymerization. Discussions focus on thermodynamic behavior of concentrated polymer solutions; direct measurement of molecular dimensions; and modification of monomer reactivity in radical copolymerization. The book also ponders on non-equimolar compositions from comonomer charge-transfer complexes and preparation of oligomers with functional end groups by polymerization reactions. The text examines cooperative interactions of complementary synthetic macromolecules in solutions and molecular weight fractionation on the basis of solubility. Topics include interactions of chemically complementary molecules and conformational transitions and methods for evaluating the molecular size distribution of the original polymer. The book also tackles alkylaluminium compounds in carbenium ion polymerization and thermodynamics of multicomponent polymer systems. The selection is a dependable reference for readers interested in the molecular configuration of polymers, complexes, and polymer systems.

XXIIIrd International Congress of Pure and Applied Chemistry, Volume 5 records the proceedings of the XXIIIrd International Congress of Pure and Applied Chemistry held in Boston, USA on July 26-30, 1971. This book is organized into two main topics—biosynthesis and mechanism of enzyme action. This text specifically discusses the researches on the biosynthesis of porphyrins, progress in the search for biosynthetic intermediates, and biogenetic pathways of fungal metabolites. The bioorganic chemistry of triterpenoid and steroid synthesis and mechanism of enzymic decarboxylation of beta ketoacids are also covered. This compilation is valuable to chemists, clinicians, and researchers conducting work on pure and applied chemistry.