Fractionation Of Synthetic Polymers

Author : Lu-ho Tung
Publisher : Unknown
Page : 768 pages
File Size : 53,7 Mb
Release : 1977
Category : Science
ISBN : UCAL:B4312720

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Fractionation of Synthetic Polymers by Lu-ho Tung Pdf

Author : Muhammad Imran Malik,Dusan Berek
Publisher : Springer Nature
Page : 310 pages
File Size : 49,8 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 : Fred W. Billmeyer
Publisher : Unknown
Page : 216 pages
File Size : 51,6 Mb
Release : 1972
Category : Science
ISBN : UOM:39015051267725

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Synthetic Polymers; Building the Giant Molecule by Fred W. Billmeyer Pdf

Author : Wiley
Publisher : John Wiley & Sons
Page : 987 pages
File Size : 50,5 Mb
Release : 2008-02-08
Category : Technology & Engineering
ISBN : 9780470233009

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Characterization and Analysis of Polymers by Wiley Pdf

Based on Wiley's renowned Encyclopedia of Polymer Science and Technology, this book provides coverage of key methods of characterization of the physical and chemical properties of polymers, including atomic force microscopy, chromatographic methods, laser light scattering, nuclear magnetic resonance, and thermal analysis, among others. Written by prominent scholars from around the world, this reference presents over twenty-five self -contained articles on the most used analytical techniques currently practiced in polymer science.

Author : S. R. Holding,E. Meehan
Publisher : iSmithers Rapra Publishing
Page : 118 pages
File Size : 51,5 Mb
Release : 1995
Category : Technology & Engineering
ISBN : 1859570526

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Molecular Weight Characterisation of Synthetic Polymers by S. R. Holding,E. Meehan Pdf

The report comprises a state-of-the-art overview of the subject of molecular c099 characterisation, supported by an extensive, indexed bibliography. The current methodology for GPC is described along with its use in combination with other techniques such as light scattering and viscosity c094. An additional indexed section containing several hundred abstracts from the Rapra Polymer Library database provides useful references for further reading.

Author : Manfred J. R. Cantow
Publisher : Elsevier
Page : 540 pages
File Size : 45,8 Mb
Release : 2013-10-22
Category : Science
ISBN : 9781483271705

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Polymer Fractionation by Manfred J. R. Cantow Pdf

Polymer Fractionation focuses on the processes, reactions, and transformations involved in polymer fractionation, including chromatography, titration, and sedimentation. The selection first offers information on theoretical considerations and fractional precipitation. Topics include polydispersity of high polymers, phase relations for polydisperse systems, fractionation theory and efficiency, and fractionation by solvent evaporation. The manuscript then takes a look at fractional solution, chromatographic fractionation, and gel permeation chromatography. The book elaborates on thermal diffusion and turbidimetric titration, as well as methods of fractionation, studies of the variables, outline of the method and range of application, and elaboration of the method. The text then ponders on sedimentation, isothermal diffusion, and summative fractionation. Discussions focus on mathematical interpretation of summative data, experimental methods for the determination of diffusion constants, and methods for the determination of the diffusion coefficient distribution. The selection is a valuable source of information for readers interested in polymer fractionation.

Author : Cornelia Vasile,Gennadiĭ Efremovich Zaikov
Publisher : Nova Publishers
Page : 278 pages
File Size : 41,5 Mb
Release : 2006
Category : Science
ISBN : 1594547726

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New Trends in Natural and Synthetic Polymer Science by Cornelia Vasile,Gennadiĭ Efremovich Zaikov Pdf

This collection of texts written by well-recognised specialists was constituted having in view these important directions of actual research. Sustainable economical growth requires safe resources of raw materials for the industrial production. Today's most frequently used industrial raw material, petroleum, is neither sustainable, because limited, nor environmentally friendly. While the economy of energy can be based on various alter-native raw materials, such as wind, sun, water, biomass, as well as nuclear fission and fusion, the economy of substances is fundamentally depending on biomass, in particular biomass of plants. In the last decades because of the crude oil and other natural resources crisis, a new alternative has been proposed consisting in utilisation of renewable natural resources as feedstock and fuel, among which the biomass is the most promising.

Author : Frieder Francuskiewicz
Publisher : Springer Science & Business Media
Page : 230 pages
File Size : 53,5 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 : Akihiro Abe,Karel Dusˇek,Shiro Kobayashi
Publisher : Springer Science & Business Media
Page : 328 pages
File Size : 40,7 Mb
Release : 2005-09-29
Category : Technology & Engineering
ISBN : 3540255486

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Polymer Analysis/Polymer Theory by Akihiro Abe,Karel Dusˇek,Shiro Kobayashi Pdf

This series presents critical reviews of the present and future trends in polymer and biopolymer science including chemistry, physical chemistry, physics and materials science. It is addressed to all scientists at universities and in industry who wish to keep abreast of advances in the topics covered. Impact Factor Ranking: Always number one in Polymer Science. More information as well as the electronic version of the whole content available at: www.springerlink.com

Author : E.R. Semlyen
Publisher : Springer Science & Business Media
Page : 398 pages
File Size : 43,8 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9789400941755

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Cyclic Polymers by E.R. Semlyen Pdf

Synthetic polymers based on long chain molecules have been investigated intensively for over 50 years. They have found important applications as plastics, fibres, rubbers and other materials. The chain molecules may be simple linear structures or they may be branched or cross-linked. During the past decade, sharp fractions of the first synthetic cyclic polymer have been prepared. These fractions of cyclic poly(dimethyl siloxane) consist of ring molecules containing hundreds of skeletal bonds. Some of their properties have been found to be quite different from those of the corresponding linear polymers. Synthetic cyclic polymers, including cyclic polystyrene, have joined the naturally occurring circular DNAs as examples of substantially large ring molecules. This book aims to review current knowledge of cyclic polymers and biological ring macromolecules. In addition, it discusses theories of cyclic macromolecules and describes cyclization processes involving long chain molecules. Since 1865, when Kekule proposed a simple ring structure for benzene, larger and larger ring molecules have been synthesized in the laboratory and discovered in nature. Many more examples are to be expected in the future. In time, large ring molecules should take their proper place alongside long chain molecules as one of the two possible constituent structural units of polymers.

Author : Philip Molyneux
Publisher : CRC Press
Page : 237 pages
File Size : 43,5 Mb
Release : 2018-01-10
Category : Science
ISBN : 9781351086127

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Water-Soluble Synthetic Polymers by Philip Molyneux Pdf

Although several monographs and reviews have appeared on individual polymers of this type, and their applications and other technical aspects have also been discussed, this is apparently the first book to deal with the physical chemistry of water-soluble synthetic polymers as a group. This collective survey enables their properties and behaviour to be compared, and to be correlated with their molecular structures for predictive purposes. However, this has made it necessary to critically re-appraise much of the earlier fundamental work, so that current discussion of more recent work can be put on ta proper basis. Thus, of the 1800 or so references cited, the middle two-thirds related to the twenty-year period centred on about 1968. Nevertheless, sufficient key recent references have also been included so that the existing ‘state of the art is delineated.

Author : Gottfried Glöckner
Publisher : Springer Science & Business Media
Page : 227 pages
File Size : 53,7 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,Muhammad Imran Malik
Publisher : Springer
Page : 179 pages
File Size : 55,7 Mb
Release : 2014-08-27
Category : Technology & Engineering
ISBN : 9783319086323

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Advanced Separation Techniques for Polyolefins by Harald Pasch,Muhammad Imran Malik Pdf

This Springer Laboratory volume introduces the reader to advanced techniques for the separation and fractionation of polyolefins. It includes detailed information on experimental protocols and procedures, addressing the experimental background of different polyolefin fractionation techniques in great detail. The book summarizes important applications in all major fractionation methods with emphasis on multidimensional analytical approaches. It comprises the most powerful modern techniques, such as high temperature size exclusion chromatography (HT-SEC) for molar mass analysis, temperature rising elution fractionation (TREF) and crystallization analysis fractionation (CRYSTAF) for the analysis of chemical composition and branching, high temperature two-dimensional liquid chromatography (HT-2D-LC), solvent and temperature gradient interaction chromatography (SGIC and TGIC) and crystallization elution fractionation (CEF). Beginners as well as experienced chromatographers will benefit from this concise introduction to a great variety in instrumentation, separation procedures and applications. With detailed descriptions of experimental approaches for the analysis of complex polyolefins, the readers are offered a toolbox to solve simple as well as sophisticated separation tasks. The book starts with an introduction into the molecular complexity of polyolefins - the most widely used synthetic polymers with rapidly growing production capacities. It systematically discusses crystallization based fractionation techniques including TREF, CRYSTAF and CEF and column chromatographic techniques for molar mass, chemical composition and microstructure, as well as the combination of different fractionations in multidimensional experimental setups. This book also includes basic information on the application of high-temperature field-flow fractionation.

Author : Y. Arai,T. Sako,Y. Takebayashi
Publisher : Springer Science & Business Media
Page : 463 pages
File Size : 54,7 Mb
Release : 2013-03-07
Category : Science
ISBN : 9783642562389

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Supercritical Fluids by Y. Arai,T. Sako,Y. Takebayashi Pdf

The potential of supercritical fluid methods is presented in a comprehensive way. On the basis of a careful discussion of physical and chemical principles, the application of this method in process technology is demonstrated.

Author : Martin E. Schimpf,Karin Caldwell,J. Calvin Giddings
Publisher : John Wiley & Sons
Page : 618 pages
File Size : 52,7 Mb
Release : 2000-08-02
Category : Science
ISBN : 0471184306

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Field-Flow Fractionation Handbook by Martin E. Schimpf,Karin Caldwell,J. Calvin Giddings Pdf

Field flow fractionation (FFF) is an emerging separation technique, which has been proven successful in the analysis of pharmaceuticals, biotechnology products, polymers, soils, and foods, among others. In this book, Martin Schimpf joins forces with Karin Caldwell and J. Calvin Giddings, two of the primary developers of this technique, to bring you the first comprehensive, one-stop reference on the technique.