IMIST


Votre recherche a retourné 8 résultats.

Biotransformations in organic chemistry : a textbook / par Faber, Kurt. Publication : [S.l.] : Springer, 2004 . 454 p. ; , The use of biocatalysts, employed either as isolated enzymes or whole microbial cells, offers a remarkable arsenal of highly selective transformations for state-of-the-art synthetic organic chemistry. Over the last two decades, this methodology has become an indispensable tool for asymmetric synthesis, not only at the academic level, but also on an industrial scale. This well-established textbook on biocatalysis provides a basis for undergraduate and graduate courses in modern organic chemistry, as well as a condensed introduction into this field. After a basic introduction into the use of biocatalysts ? principles of stereoselective transformations, kinetics and enzyme properties ? the different types of reactions are explained according to the 'reaction principle', such as hydrolysis, reduction, oxidation, C-C bond formation, etc. Special techniques, such as the use of enzymes in organic solvents, immobilization techniques and the use of modified enzymes, are treated in a separate section. A final chapter deals with the basic rules for the safe and practical handling of biocatalysts. In this revised and corrected 5th edition, emphasis has been given to an improved didactic style in order to facilitate a deeper understanding of the underlying principles. New developments, such as dynamic resolution, stereo-inversion and enantio-convergent processes are included. 23 cm. Date : 2004 Disponibilité : Exemplaires disponibles: La bibliothèque des sciences de l'ingénieur (1),

Extraction of organic analytes from food : a manual of methods / par Self, R. Publication : [S.l.] : Royal Society of Chemistry, 2005 . 344 p. ; , This book is designed as a laboratory manual of methods used for the preparation and extraction of organic chemical compounds from food sources. It offers ideas on how to facilitate progress towards the total automation of the assay, as well as proposing assays for unknowns by comparison with known methods. Beginning with an introduction to extraction methodology, Extraction of Organic Analytes from Foods then progresses through sample preparation, extraction techniques (partition, solvation, distillation, adsorption and diffusion) and applications. Subject indices for the applications are organised by commodity, method, chemical class and analyte, and provide useful examples of references from the literature to illustrate historical development of the techniques. Examples of methods that have been compared, combined or used in collaborative trials have been correlated and used to form the beginnings of a database that can be expanded and updated to provide a laboratory reference source. Logically structured and with numerous examples, Extraction of Organic Analytes from Foods will be invaluable to practising food analysts as both a reference and training guide. In addition, the introductory sections in each chapter have been written with food science and technology students in mind, making this an important title for academic libraries. 24 cm. Date : 2005 Disponibilité : Exemplaires disponibles: La bibliothèque des sciences de l'ingénieur (1),

New smart materials via metal mediated macromolecular engineering   Publication : [S.l.] Springer 2009 . 418 p. , Control over macromolecular architecture and resulting material properties has been a central goal of polymer chemistry. There has been much interest in developing new synthetic routes to prepare smart materials with novel compositions and topologies for various applications. The considerable progress in the metal mediated macromolecular engineering over the past decade has had a major impact on the development of well-defined macromolecular architectures and the synthesis of smart materials. Particularly, remarkable strong developments have been observed for the synthesis of smart materials via four metal mediated macromolecular engineering techniques; Anionic, ROMP, ATRP and Click Chemistry. These materials have found uses in advanced microelectronics, technical and biomedical applications as well as in chemical sensors applications. This book is comprised of 27 chapters written by leading scientists from NATO and Partner Countries who have greatly contributed in the area of Anionic, ROMP, ATRP and Click Chemistry. It highlights the fundamental aspects and recent developments of these four powerful techniques and evaluate their potential in the syntheses of smart materials from complex structures (grafts, brushes, dendrimers, etc.) to nanostructures (self-assembly, nano-size, etc) for a wide range of applications. The book reports on the synthesis of a wide range of well-defined complex polymeric systems such as thermoresponsive smart polymers, star copolymers, biocompatible polymers, amphipilic smart nano structured, conducting polymers, self assembled polymers, and hyperbranced polymers. 24 cm. Date : 2009 Disponibilité : Exemplaires disponibles: La bibliothèque des sciences de l'ingénieur (1),
Organic chemistry of museum objects, second edition / par Mills,, John. Publication : [S.l.] : Butterworth-Heinemann, 2000 . 206 p. ; , 'The Organic Chemistry of Museum Objects' makes available in a single volume, a survey of the chemical composition, properties and analysis of the whole range of organic materials incorporated into objects and artworks found in museum collections. The authors cover the fundamental chemistry of the bulk materials such as wood, paper, natural fibres and skin products, as well as that of the relatively minor components incorporated as paint, media, varnishes, adhesives and dyes. This expanded second edition, now in paperback, follows the structure of the first, though it has been extensively updated. In addition to chapters on basic organic chemistry, analytical methods, analytical findings and fundamental aspects of deterioration, the subject matter is grouped as far as possible by broad chemical class - oils and fats, waxes, bitumens, carbohydrates, proteins, natural resins, dyestuffs and synthetic polymers. This is an essential purchase for all practising and student conservators, restorers, museum scientists, curators and organic chemists. * Available for the first time in paperback * Detailed, comprehensive coverage of the subject area * The only definitive guide to the survey of chemical composition. 24 cm. Date : 2000 Disponibilité : Exemplaires disponibles: La bibliothèque des sciences de l'ingénieur (1),

Vous ne trouvez pas ce que vous cherchez ?
© Tous droits résérvés IMIST/CNRST
Angle Av. Allal Al Fassi et Av. des FAR, Hay Ryad, BP 8027, 10102 Rabat, Maroc
Tél:(+212) 05 37.56.98.00
CNRST / IMIST

Propulsé par Koha