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Interaction Chromatography of Polymers

Polymers are essential in our daily life. The increasing success of polymers over traditional materials like wood or metal during the last decades results from the low price, easy processability, and the possibility to tailor the properties for a particular application. Despite the large variety of polymers and polymer applications, the overwhelming number of polymers is based on just a few monomers. The possibility to derive copol)Tners of different chemical composition and structure from these monomers allows creating a multitude of materials for different applications. [Pg.94]

Atlanta, Ga., 26th-30th April 1998, p.2101-5. 012 TEMPERATURE GRADIENT INTERACTION CHROMATOGRAPHY OF POLYMERS... [Pg.112]

As has been pointed out, both entropic and enthalpic interactions affect the chromatographic behavior of macromolecules. They are adjusted to the required type of separation by selecting appropriate stationary and mobile phases. In a third mode of liquid chromatography of polymers, liquid chromatography at the critical condition (LCCC) (Entelis etal., 1985,1986 Pasch, 1997), the adsorptive interactions are fully compensated by entropic interactions. This mode is also referred to as liquid chromatography at the critical point of adsorption. Hence, TAS is equal to AH and therefore, AG becomes zero. K is 1 irrespective of molar mass and, consequently, homopolymer molecules of different molar masses coelute in one chromatographic... [Pg.391]

Pasch, H. Analysis of Complex Polymers by Interaction Chromatography. Vol. 128, pp. 1 -46. Pasch, if. Hyphenated Techniques in Liquid Chromatography of Polymers. Vol. 150,... [Pg.241]

Three types of interactions occur during a TLC run which determine the results. The following is a discussion of these factors, with special emphasis on their relation to the chromatography of polymers. [Pg.62]

The effects of solute-solvent interactions play a greater role in the chromatography of polymers than in conventional TLC. Normally, solubility plays a very small role in the TLC behavior of monomeric compounds. For polymers, however, the effects of solute-solvent interaction are critical. Solvents with 8 s which match that of the polymer are good thermodynamic solvents, and should displace the polymer during development. [Pg.63]

Galin, M., "Gas-Liquid Chromatography Study of Polyethylene oxide)- Solvent Interactions Estimation of Polymer Solubility Parameter," Polymer, 24, 865 (1983). [Pg.171]

N. Kubota, M. Kounosu, K. Saito, K. Sugita, K. Watanabe and T. Sugo, Control of Phenyl-Group Site Introduced on the Graft Chain for Hydrophobic Interaction Chromatography, Reactive Polym., 29 (1996) 115. [Pg.698]

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Polymers interactions

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