Published 3 Dec 2020
When you think of gel permeation chromatography / size exclusion chromatography (GPC/SEC) you probably associate the technique with the analysis of macromolecules such as proteins and polymers. After all, that’s what it does best! However, as researchers and manufacturers push…READ MORE >
Tags: gel permeation chromatography, GPC, gpc/sec, OMNISEC Resolve, OMNISEC Reveal
Published 23 Jun 2015
Gel Permeation Chromatography (GPC) is a very popular analytical tool for characterizing natural and synthetic polymers. This Wednesday Dr. Wei Sen Wong will show results from Triple Detection GPC systems for various polyacrylonitrile (PAN) samples in a webinar presentation. Molecular weight (MW)…READ MORE >
Tags: GPC, multi-detector SEC, Pan, polyacrylnitrile, polymer characterization
Published 21 Jan 2015
When you think of Houston, your first thought might be ‘Houston, we have a problem’ – a (mis)quote from the Apollo 13 space mission. Home to mission control for NASA space flights, Houston has been at the center of many…READ MORE >
Tags: gel permeation chromatography, GPC, Houston, launch event, OmniSEC
Published 19 Jun 2014
I recently came back from a sailing holiday in the Caribbean. I hadn’t been sailing before but I couldn’t help but think that the ropes we used make the perfect analogy for polymers. In simplest terms, the longer the rope,…READ MORE >
Tags: intrinsic viscosity, molecular weight, polymer characterization, polymers
Published 6 Mar 2012
That’s U-tube (Ubbelohde Tube) – not YouTube! Automated Dilute Solution Viscometry (DSV) systems directly measure the relative viscosity of dilute polymer solutions, allowing the determination of intrinsic viscosity, a parameter that correlates with molecular weight, itself a defining polymer characteristic….READ MORE >
Tags: dilute solution viscometry, DSV, polymer characterization, viscosity measurement