Porous graphite as platform for the separation and characterization of synthetic polymers - an overview.

摘要: Abstract Porous graphite as sorbent differs significantly from all other HPLC column packings. It stands out due to its chemically extremely homogeneous surface, which moreover is planar on an atomic level. This sorbent, according non-polar but polarizable able adsorb polar well small molecules macromolecules. Moreover, it enables their separation induced by minute differences in molecular architecture, includes the aspects of planarity, branching or tacticity Although had already been used many years for molecules, application porous separations domain synthetic polymers has rare. In 2009 was found that polyethylene and polypropylene basis full adsorption desorption, when suitable solvents are used. approach led fast elaboration systems various modified polyolefins. Due pronounced adsorptive interactions, applicable even at temperatures high 160 °C. The results presented this paper manifest obtain important information about composition distribution polymers, architecture macromolecules (i.e., branching) tacticity, underlines enormous potential.