Results 241 to 250 of about 287,947 (285)
Some of the next articles are maybe not open access.
Polymer, 1989
Virtually all synthetic polymers have a molecular weight distribution (MWD) which may be represented by the cumulative weight distribution I(M) or differential weight distribution w(M) as a function of molecular weight M.1 Although the calculation of w(M) for various types of polymerization mechanism was already well documented,2 an accurate and ...
+4 more sources
Virtually all synthetic polymers have a molecular weight distribution (MWD) which may be represented by the cumulative weight distribution I(M) or differential weight distribution w(M) as a function of molecular weight M.1 Although the calculation of w(M) for various types of polymerization mechanism was already well documented,2 an accurate and ...
+4 more sources
Surfactant-aided size exclusion chromatography
Journal of Chromatography B, 2004The flexibility and selectivity of size exclusion chromatography (SEC) for protein purification can be modified by adding non-ionic micelle-forming surfactants to the mobile phase. The micelles exclude proteins from a liquid phase similar to the exclusion effect of the polymer fibers of the size exclusion resin.
Horneman, D.A. +5 more
openaire +2 more sources
Aqueous size exclusion chromatography
Analytica Chimica Acta, 1989Part I. Separation Mechanisms. Size exclusion parameters (M.E. Himmel, P.G. Squire). Partitioning: Hydrophobic interactions (M. Janado). Electrostatic effects (P.L. Dubin). Exclusion chromatography of inorganic compounds (M. Shibukawa, N. Ohta). II. Characterization of Stationary Phases. Pore size distributions (L. Hagel). Structural analysis of porous
P.L. Dubin, D.Thorburn Burns
openaire +1 more source
Journal of Chromatography A, 2001
Band broadening in size-exclusion chromatography (SEC) has an adverse effect upon calculated molecular mass averages, distributions, and dilute solution data generated using single- and multi-detector systems. In the past, the longitudinal diffusion contribution to band broadening in SEC has been considered negligible.
openaire +2 more sources
Band broadening in size-exclusion chromatography (SEC) has an adverse effect upon calculated molecular mass averages, distributions, and dilute solution data generated using single- and multi-detector systems. In the past, the longitudinal diffusion contribution to band broadening in SEC has been considered negligible.
openaire +2 more sources
Size Exclusion Chromatography System
2001Abstract : Instrumentation was purchased as planned set up, and used to support the ongoing ARO grant "Elastomeric Nanocomposites Based On Sol-Gel Reactions of Silicon Alkoxides In lonomeric Derivatives Of Finely-Architectured Block Copolymers". Research results are presented in the attached document.
Robson F. Storey, Kenneth A. Mauritz
openaire +1 more source
Aqueous Size Exclusion Chromatography
1999The determination of molecular weight (MW) averages and molecular weight distributions (MWD) of water-soluble polymers, such as nonionic and ionic synthetic polymers, proteins and peptides, by aqueous SEC sometimes encounters difficulties because of non-size exclusion effects.
Sadao Mori, Howard G. Barth
openaire +1 more source
Inverse Size-Exclusion Chromatography
2017The most preferred method to separate sample molecules based on their size relative to the pore size is size exclusion chromatography (SEC) (also referred to as gelpermeation, gel-filtration, molecular sieve, or simply gel chromatography) because using a strong solvent, there will be no interaction between the solute molecules and the stationary phase.
Sepsey, Annamária +2 more
openaire +1 more source