Liquid Chromatography of Oligomers
Liquid Chromatography of Oligomers

Author: Constantin V. Uglea

Publisher: CRC Press

Published: 1996-06-06

Total Pages: 358

ISBN-13: 9780824797201

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Details the principles and mechanisms of, and the equipment and optimal working conditions for, the liquid-chromatographic separation of well-defined oligomeric species and fraction with narrow molecular weight distribution. The work provides a complete description of the applications and possible performance of liquid chromatography in the field of oligomer separation.

Reactive Oligomers
Reactive Oligomers

Author: S.G. Entelis

Publisher: CRC Press

Published: 2023-03-08

Total Pages: 335

ISBN-13: 1466562900

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Reactive oligomers (ROs) constitute a starting material for the production of numerous polymeric materials with a pre-assigned set of physico-mechanical and physico-chemical properties. This book is the first to treat systematically various methods for determining the FTD and MWD of functional oligomers. Special attention is given to the application of liquid chromatography in different separation modes: exclusion (gel-permeation chromatography, GPC) and adsorption, as well as to the separation of functional oligomers in the critical region (SCR) at the boundary between the specified modes.

Reactive Oligomers
Reactive Oligomers

Author: Sergej G. Entelis

Publisher: VSP

Published: 1989-06

Total Pages: 338

ISBN-13: 9789067641074

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Reactive oligomers (ROs) constitute a starting material for the production of numerous polymeric materials with a pre-assigned set of physico-mechanical and physico-chemical properties. This book is the first to treat systematically various methods for determining the FTD and MWD of functional oligomers. Special attention is given to the application of liquid chromatography in different separation modes: exclusion (gel-permeation chromatography, GPC) and adsorption, as well as to the separation of functional oligomers in the critical region (SCR) at the boundary between the specified modes.

Synthesis and Characterization of Oligomers
Synthesis and Characterization of Oligomers

Author: Constantin V. Uglea

Publisher: CRC Press

Published: 1991-07-24

Total Pages: 388

ISBN-13: 9780849349546

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This book provides an excellent introduction to the fundamentals of oligomer chemistry. Each section describes the synthesis, separation, physico-chemical characterization, and present and future applications of individual classes of oligomers organized according to the chemical structure of the main chain. In addition, this book features up-to-date references from both journals and patents and an extensive appendix covering synthesis and characterization methods of oligomeric derivatives. Synthesis and Characterization of Oligomers is a broad, state-of-the-art survey and will be useful not only for students and professionals working with oligomers, but also chemists who are new to the field.

High-performance Liquid Chromatography of Biopolymers and Biooligomers
High-performance Liquid Chromatography of Biopolymers and Biooligomers

Author: Otakar Mikeš

Publisher: Elsevier Science & Technology

Published: 1988

Total Pages: 756

ISBN-13:

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Proteins and their higher molecular weight fragments -- Enzymes -- Peptides -- Nucleic acids, polynucleotides and oligonucleotides -- Polysaccharides and oligosaccharides -- Compound biopolymers and biooligomers -- Applications of high-performance liquid chromatographic methods in structural studies of biopolymers and biooligomers -- Register of biopolymers, biooligomers fragments separated by HPLC or MPLC methods -- Bibliography -- Prospects for high-pressure and medium-pressure column liquid chromatography of biopolymers and biooligomers.

Liquid Chromatographic Fractionations of Mixtures of Polystyrene Oligomers
Liquid Chromatographic Fractionations of Mixtures of Polystyrene Oligomers

Author:

Publisher:

Published: 1980

Total Pages:

ISBN-13:

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Oligomer mixtures of 800, 2200, and 4000 molecular weight polystyrene have been fractionated using silica and bonded phase columns under similar conditions of solvent gradient and flow rate. Using a hexane/tetrahydrofuran gradient, the silica and nitro phases were best in that they separated 41 and 43 oligomers, respectively. At the other extreme, a phenyl bonded phase column gave virtually no resolution using a water/THF gradient and a cyano bonded phase column, using the earlier hexane/tetrahydrofuran system, resolved only 10 oligomers. Amino and octadecyl bonded phase columns gave results intermediate between these two extremes. The strength of the solvent used to dissolve the sample was found to be of critical importance. Use of too good a sample solvent seriously degraded the attainable resolution. When number average and weight average molecular weights for an 800 molecular weight polystyrene sample were calculated from the oligomer distribution, the silica column gave values which were most consistent with those reported from other methods.