SEC with Phenolic Solvents

As noted above, the SEC of polyesters, such as polyethylene terephthalate and many polyamides is often carried out using phenolic solvents at temperatures of around 110°C or 120°C. Typical solvents are m-cresol or o-chlorophenol. It is the unpleasant nature of the solvents which is the main problem with these SEC applications but in general the problems of high temperature SEC increase with temperature.

In the author's laboratories, the SEC of polyesters appears to be reasonably straightforward but the weak DRI detector response for polyamides is problematic.

Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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