作者: Souhenc Wu
关键词: Gel permeation chromatography 、 Molar mass distribution 、 Analytical chemistry 、 Polymer chemistry 、 Polymer 、 Materials science 、 Viscoelasticity 、 Dispersity 、 Osmometer 、 Size-exclusion chromatography 、 Light scattering 、 Materials Chemistry 、 General chemistry 、 Polymers and Plastics
摘要: A method is developed by which polymer molecular weight and its distribution can be accurately determined deconvolution of dynamic melt viscoelastic properties in the terminal plateau zones. The illustrated with a series monodisperse (narrow-distribution) polydisperse (broaddistribution) polystyrenes. Mn, Mw, Mn/Mw values obtained are excellent agreement those light scattering, osmometry gel permeation chromatography less than 5 to 10 percent error. differential molecular-weight curves coincide wall chromatography. applicable insoluble as well soluble polymers.