Gradient Hplc Of Copolymers And Chromatographic Cross Fractionation

Author : Gottfried Glöckner
Publisher : Springer Science & Business Media
Page : 227 pages
File Size : 54,7 Mb
Release : 2012-12-06
Category : Science
ISBN : 9783642757990

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Gradient HPLC of Copolymers and Chromatographic Cross-Fractionation by Gottfried Glöckner Pdf

"The problems involved in separating complex macromolecules require under standing not only the chromatographic process but also the physicochemical behavior of the solutes." This sentence from the pen of Phyllis R. Brown 1, University of Rhode Island, can certainly be applied to synthetic copolymers whose structure is very complex indeed. Thus it may be forgiven that a book on copolymer HPLC has been written not by a trained chromatographer but by someone from the polymer side. The HPLC of synthetic polymers is often understood to mean only a synonym for size exclusion chromatography. The latter method separates polymers according to the size of the macromolecules and enables the molecular weight distribution of a sample to be evaluated. But as early as 1936, Mark and Saito attempted chromatographic fractionation of cellulose acetate on a charcoal-like adsorbent made from blood. HPLC adsorption chromatography was first applied to copolymer analysis by Teramachi et al. in 1979. Since then, another branch of polymer HPLC has arisen which has the capacity of separating copolymers by composition and enables the chemical composition distribution to be evaluated. The technique requires a suitable elution program and is mainly carried out as gradient elution.

Author : Harald Pasch,Bernd Trathnigg
Publisher : Springer Science & Business Media
Page : 248 pages
File Size : 45,9 Mb
Release : 1998
Category : Science
ISBN : UOM:39015040073408

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HPLC of Polymers by Harald Pasch,Bernd Trathnigg Pdf

Author : Harald Pasch,Bernd Trathnigg
Publisher : Springer Science & Business Media
Page : 234 pages
File Size : 43,6 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9783642582653

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HPLC of Polymers by Harald Pasch,Bernd Trathnigg Pdf

Polymers are mainly characterized by molar mass, chemical composition, functionality and architecture. The determination of the complex structure of polymers by chromatographic and spectroscopic methods is one of the major concerns of polymer analysis and characterization. This lab manual describes the experimental approach to the chromatographic analysis of polymers. Different chromatographic methods, their theoretical background, equipment, experimental procedures and applications are discussed. The book will enable polymer chemists, physicists and material scientists as well as students of macromolecular and analytical science to optimize chromatographic conditions for a specific separation problem. Special emphasis is given to the description of applications for homo- and copolymers and polymer blends.

Author : Muhammad Imran Malik,Dusan Berek
Publisher : Springer Nature
Page : 310 pages
File Size : 53,9 Mb
Release : 2023-11-03
Category : Technology & Engineering
ISBN : 9783031348358

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Liquid Chromatography of Synthetic Polymers by Muhammad Imran Malik,Dusan Berek Pdf

This book elucidates the peculiar phenomenon of entropy/enthalpy compensation that takes place in high performance liquid chromatography (HPLC) of polymers. Numerous publications, including some books, are devoted to molecular characterization of synthetic polymers, materials presently produced in large and steadily growing quantities, applying methods of HPLC. A knowledge of the molecular characteristics of polymers is indispensable, not only for their proper applications but also for their recycling and remediation. Polymer scientists generally focus on synthesis and potential applications of polymers while not giving due attention to an important central link, their comprehensive characterization in context of development of structure-property correlations. To fill this gap is one of the aims of the present book. The process of entropy/enthalpy compensation plays a decisive role in the advanced method of polymer characterization such as liquid chromatography at critical conditions, eluent gradient interaction chromatography, and temperature gradient interaction chromatography. All chemists working on any aspect of polymer science will find this book a valuable resource for the development of structure-property correlations.

Author : Anonim
Publisher : Academic Press
Page : 881 pages
File Size : 46,9 Mb
Release : 2009-11-11
Category : Science
ISBN : 9780123757272

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Handbook of Methods and Instrumentation in Separation Science by Anonim Pdf

Handbook of Methods and Instrumentation in Separation Science, Volume 1 provides concise overviews and summaries of the main methods used for separation. It is based on the Encyclopedia of Separation Science. The handbook focuses on the principles of methods and instrumentation. It provides general concepts concerning the subject matter; it does not present specific procedures. This volume discusses the separation processes including affinity methods, analytical ultracentrifugation, centrifugation, chromatography, and use of decanter centrifuge and dye. Each methodology is defined and compared with other separation processes. It also provides specific techniques, principles, and theories concerning each process. Furthermore, the handbook presents the applications, benefits, and validation of the processes described in this book. This handbook is an excellent reference for biomedical researchers, environmental and production chemists, flavor and fragrance technologists, food and beverage technologists, academic and industrial librarians, and nuclear researchers. Students and novices will also find this handbook useful for practice and learning. One-stop source for information on separation methods General overviews for quick orientation Ease of use for finding results fast Expert coverage of major separation methods Coverage of techniques for all sizes of samples, pico-level to kilo-level

Author : Muhammad Imran Malik,Jimmy Mays,Muhammad Raza Shah
Publisher : Elsevier
Page : 670 pages
File Size : 40,9 Mb
Release : 2021-03-09
Category : Technology & Engineering
ISBN : 9780128225981

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Molecular Characterization of Polymers by Muhammad Imran Malik,Jimmy Mays,Muhammad Raza Shah Pdf

Molecular Characterization of Polymers presents a range of advanced and cutting-edge methods for the characterization of polymers at the molecular level, guiding the reader through theory, fundamentals, instrumentation, and applications, and supporting the end goal of efficient material selection and improved material performance. Each chapter focuses on a specific technique or family of techniques, including the different areas of chromatography, field flow fractionation, long chain branching, static and dynamic light scattering, mass spectrometry, NMR, X-Ray and neutron scattering, polymer dilute solution viscometry, microscopy, and vibrational spectroscopy. In each case, in-depth coverage explains how to successfully implement and utilize the technique. This practical resource is highly valuable to researchers and advanced students in polymer science, materials science, and engineering, and to those from other disciplines and industries who are unfamiliar with polymer characterization techniques. Introduces a range of advanced characterization methods, covering aspects such as molecular weight, polydispersity, branching, composition, and tacticity Enables the reader to understand and to compare the available technique, and implement the selected technique(s), with a view to improving properties of the polymeric material Establishes a strong link between basic principles, characterization techniques, and real-life applications

Author : Salvatore Fanali,Paul R. Haddad,Colin Poole,David K. Lloyd
Publisher : Newnes
Page : 688 pages
File Size : 43,9 Mb
Release : 2013-01-08
Category : Science
ISBN : 9780124158665

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Liquid Chromatography by Salvatore Fanali,Paul R. Haddad,Colin Poole,David K. Lloyd Pdf

A single source of authoritative information on all aspects of the practice of modern liquid chromatography suitable for advanced students and professionals working in a laboratory or managerial capacity Chapters written by authoritative and visionary experts in the field provide an overview and focused treatment of a single topic Each chapter emphasizes the integration of chromatographic methods and sample preparation, automation, and explains how liquid chromatography is used in different industrial sectors Focuses on expanding and illustrating the main features of the fundamental section, while demonstrating where and how the best practices of liquid chromatography are utilized Comprehensive coverage of modern liquid chromatography from theory, to methods, to selected applications Thorough selected references and tables with commonly used data to facilitate research, practical work, comparison of results, and decision making

Author : G. Lawson
Publisher : iSmithers Rapra Publishing
Page : 136 pages
File Size : 55,5 Mb
Release : 1991-12
Category : Polymerization
ISBN : 0080417426

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Chemical Analysis of Polymers by G. Lawson Pdf

Author : Harald Pasch,Bernd Trathnigg
Publisher : Springer Science & Business Media
Page : 291 pages
File Size : 43,5 Mb
Release : 2013-06-12
Category : Technology & Engineering
ISBN : 9783642360800

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Multidimensional HPLC of Polymers by Harald Pasch,Bernd Trathnigg Pdf

This book presents the principle ideas of combining different analytical techniques in multi-dimensional analysis schemes. It reviews the basic principles and instrumentation of multi-dimensional chromatography and the hyphenation of liquid chromatography with selective spectroscopic detectors and presents experimental protocols for the analysis of complex polymers. It is the consequent continuation of "HPLC of Polymers" from 1999 by the same authors. Like its 'predecessor', this book discusses the theoretical background, equipment, experimental procedures and applications for each separation technique, but in contrast treats multi-dimensional and coupled techniques. "Multidimensional HPLC of Polymers" intends to review the state of the art in polymer chromatography and to summarize the developments in the field during the last 15 years. With its tutorial and laboratory manual style it is written for beginners as well as for experienced chromatographers, and will enable its readers (polymer chemists, physicists and material scientists, as well as students of polymer and analytical sciences) to optimize the experimental conditions for their specific separation problems.

Author : Anonim
Publisher : iSmithers Rapra Publishing
Page : 62 pages
File Size : 53,7 Mb
Release : 1995
Category : Copolymers
ISBN : 1859570488

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Characterisation of Copolymers by Anonim Pdf

Author : Chi-San Wu
Publisher : CRC Press
Page : 721 pages
File Size : 41,9 Mb
Release : 2003-11-04
Category : Science
ISBN : 9780824757793

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Handbook Of Size Exclusion Chromatography And Related Techniques by Chi-San Wu Pdf

Documenting critical advances in this rapidly evolving field, the Second Edition highlights the need for new applications and technologies that assist in the determination of molecular weight and molecular weight distributions of polymers in an accurate, efficient manner. This volume presents the latest findings from a international team of specialists and continues to inspire and extend practical applications of size exclusion chromatography (SEC). It includes six new chapters covering high-speed size exclusion chromatography, SEC of low molecular weight materials, and the extended family of techniques, from two-dimensional liquid chromatography to high osmotic pressure chromatography.

Author : Paul H. Gamache
Publisher : John Wiley & Sons
Page : 548 pages
File Size : 40,5 Mb
Release : 2017-05-30
Category : Science
ISBN : 9780470937785

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Charged Aerosol Detection for Liquid Chromatography and Related Separation Techniques by Paul H. Gamache Pdf

The first book devoted exclusively to a highly popular, relatively new detection technique Charged Aerosol Detection for Liquid Chromatography and Related Separation Techniques presents a comprehensive review of CAD theory, describes its advantages and limitations, and offers extremely well-informed recommendations for its practical use. Using numerous real-world examples based on contributors’ professional experiences, it provides priceless insights into the actual and potential applications of CAD across a wide range of industries. Charged aerosol detection can be combined with a variety of separation techniques and in numerous configurations. While it has been widely adapted for an array of industrial and research applications with great success, it is still a relatively new technique, and its fundamental performance characteristics are not yet fully understood. This book is intended as a tool for scientists seeking to identify the most effective and efficient uses of charged aerosol detection for a given application. Moving naturally from basic to advanced topics, the author relates fundamental principles, practical uses, and applications across a range of industrial settings, including pharmaceuticals, petrochemicals, biotech, and more. Offers timely, authoritative coverage of the theory, experimental techniques, and end-user applications of charged aerosol detection Includes contributions from experts from various fields of applications who explore CAD’s advantages over traditional HPLC techniques, as well its limitations Provides a current theoretical and practical understanding of CAD, derived from authorities on aerosol technology and separation sciences Features numerous real-world examples that help relate fundamental properties and general operational variables of CAD to its performance in a variety of conditions Charged Aerosol Detection for Liquid Chromatography and Related Separation Techniques is a valuable resource for scientists who use chromatographic techniques in academic research and across an array of industrial settings, including the biopharmaceutical, biotechnology, biofuel, chemical, environmental, and food and beverage industries, among others.

Author : Frieder Francuskiewicz
Publisher : Springer Science & Business Media
Page : 230 pages
File Size : 53,6 Mb
Release : 2013-03-09
Category : Science
ISBN : 9783642787041

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Polymer Fractionation by Frieder Francuskiewicz Pdf

Fractionation of polymers via solubility has been a well known method in polymer characterization for a long time. The original object of analytical fractionations, the determination of the molecular weight distribution, is nowadays achieved more efficiently and conveniently by chromatographic methods. However, fractionation procedures, which were developed in great diversity, remain up~to-date and essential for obtaining preparative fractions with narrow distributions. Such fractions are wanted increasingly for the investigation of true structure-property relationships which are mostly influ~ enced by distributions of molecular weight or other parameters such as branching or chemical composition. Literature on the field of polymer fractionation is extensive and several reviews exist. However, there is a lack of systematically methodical instruc tions for carrying-out of diverse fractionation procedures. This volume repre sents an attempt to reduce this deficiency and is focussed on practical aspects of fractionation procedures. This laboratory manual is intended for polymer chemists, physicists, and technicians, for students of polymer science, and skilled laboratory assistants, all of whom are not dealing directly with fractionation but are in need of fractions to carry out further investigations.

Author : Sadao Mori,Howard G. Barth
Publisher : Springer Science & Business Media
Page : 236 pages
File Size : 40,7 Mb
Release : 2013-03-09
Category : Technology & Engineering
ISBN : 9783662039106

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Size Exclusion Chromatography by Sadao Mori,Howard G. Barth Pdf

Although size exclusion chromatography (SEC) is perhaps the most popular and widely used technique for determining the molecular weight distribution of polymeric materials, there have been very few texts written on this topic. During the past decade, SEC has experienced a considerable amount of growth in regard to column and detector technology and new applications. With these advances, SEC can now be used for determining absolute molecular weight, polymer chain conformation and size, and branching, as well as polymer solution properties. This book introduces the reader to the fundamentals of SEC with emphasis on practical aspects of the technique, such as column and mobile selection, calibration, new detector capabilities and guidelines for performing SEC on most types of polymers, especially those of industrial importance. This book is intended for either those new to the field of SEC, or for those research workers who require a more comprehensive background.

Author : M. Schmidt
Publisher : Springer
Page : 235 pages
File Size : 47,7 Mb
Release : 2003-07-01
Category : Science
ISBN : 9783540487647

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New Developments in Polymer Analytics I by M. Schmidt Pdf

The two companion volumes of "Advances in Polymer Science" - Volumes 150 and 151 - deal with recent progress in the characterization of polymers, mostly in solution but also at surfaces. The contributions comprise multidimensional chromatography for elucidation, the composition and the chain length distribution of copolymers, capillary electrophoresis of synthetic water-soluble polymers including polyelectrolytes, field flow fractionation techniques for quick and reliable separation and characterization of broad polymer samples and a novel application of thermal grating experiments for probing Brownian and thermal diffusion. Finally the rapid development of atomic forces techniques is reviewed with particular emphasis on the visualization of macromolecules and the patterning of surfaces.