Polyolefin copolymer resins incorporate comonomers such as 1-butene, 1-hexene, or 1-octene, which results in short-chain branches irregularly added that influence the crystallinity and final density of the resin. Depending on their density, the resulting resins are classified as high-density . . . read more »
The simultaneous analysis of concentration and chemical composition in Gel Permeation Chromatography (GPC) or Size Exclusion Chromatography (SEC) is of significant interest for today’s complex polyolefin copolymers. In polyethylene and copolymers, chemical composition is centered around the study of . . . read more »
Polyolefin resins have become complex polymers by design, achieved with multi-reactor processes and the incorporation of comonomers that improve their performance for the desired application. This design complexity requires advanced methods of analysis, as the average properties measured by melt . . . read more »
This guide covers some practical considerations regarding solvent, analysis conditions, and laboratory supplies needed for analyzing polyolefins by Gel Permeation Chromatography (GPC) or Size Exclusion Chromatography (SEC) technique. The data and recommendations presented here have been derived from the . . . read more »
High Temperature Size Exclusion Chromatography (SEC) – also called Gel Permeation Chromatography (GPC) – is the most widespread technique to characterize the microstructure of polymers. Different detector-configurations can be used with SEC instrumentation, each of them contributing to the . . . read more »
By coupling GPC-IR and GPC-QC* with any of Polymer Char’s Infrared detectors – IR4, IR5, or IR6 – it is possible to obtain both molecular weight distribution and chemical composition information of polyolefin resins. Each IR detector was developed . . . read more »
As analysts in the Gel Permeation Chromatography (GPC) field, we know that picking the right columns and developing a stable analysis method is essential to delivering precise and accurate results. Even the most comprehensive analytical system will fail to . . . read more »
This site uses cookies to give you a better browsing experience. If you continue
browsing this site we understand that you accept our use of cookies.
For more information,
please visit our Cookies Policy. You can configure which
cookies you accept by ticking the next options: