Add time:07/25/2019         Source:sciencedirect.com

Poly(ethylene glycol) methyl ether methacrylate macromonomers (ME-PEG350-MA) and their copolymers with methacrylic acid (MAA) were characterized by gas chromatography/mass spectrometry and by analytical pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) at 550 °C, respectively. The separated compounds were identified by using the mass spectral library and by calculation of increments of the retention indices in programmed gas chromatography. The obtained analytical results were then used to calculate the average degrees of ethoxylation of the investigated macromonomers and copolymers.

We also recommend Trading Suppliers and Manufacturers of HEXAETHYLENE GLYCOL DIMETHYL ETHER (cas 1072-40-8). Pls Click Website Link as below: cas 1072-40-8 suppliers