Polymer analysis by GPC-SEC

GPC/SEC Analysis of Nylon Using Agilent PLgel Columns with HFIP and m-Cresol Solvents

Analysis of a polymer by the LC technique of GPC/SEC reveals information that influences many of the key physical parameters of such material, including strength, brittleness, melt flow, and how easily the material is processed. As such, GPC/SEC is a very important technique for those synthesizing polymers of all kinds. However, for many polymer systems, the choice of solvent for the analysis i...

GPC/SEC of Compositionally Complex Natural Polymers with Agilent PLgel MIXED Columns

Many synthetic polymers used in applications such as packaging and construction are well-understood, consisting of homopolymers or co-polymers of chemically simple monomers. Analysis of these materials by gel permeation chromatography (GPC) yields useful molecular weight distributional information that can be used to predict the physical properties of the material and, therefore, end-use applic...

Rebooting the Franchise: The 2015 International Symposium on GPC/SEC and Related Techniques.

annually between the United States and Europe, the 2015 Symposium took place in Philadelphia, PA between October 20 and 22. The format followed one developed for the previous year’s meeting, somewhat different from that of other conferences. The Symposium began with a Meet the Experts day, in which seven acknowledged experts (well, six and this editor) were given the opportunity to speak about ...

Excipient analysis by GPC/SEC and other LC techniques

Employing MALDI-MS on Poly(alkylthiophenes): Analysis of Molecular Weights, Molecular Weight Distributions, End-Group Structures, and End-Group Modifications

Regioregular, head-to-tail coupled, poly(3-alkylthiophenes), synthesized by three different methods, were subjected to MALDI-TOF MS analysis. Polymer samples of both high and low polydispersities were examined. Polymer samples of narrow polydispersity were obtained by fractionation of the polymer by Soxhlet extraction with various solvents. Comparisons between the molecular weights calculated b...