10 июля, 2015 
Malyar Oxygen acts as an inhibitor and a nitrogen sparge or purge can be used to exclude air and thereby oxygen from the air. Unlike the monomer purification process employed when undertaking polymerisations for academic purposes, for commercial operations it is not usual to remove inhibitor from the monomer before polymerisation this being regarded as a costly and unnecessary operation.
To overcome inhibition from inhibitor present in commercial grades of acrylic monomer, the concentration of the initiator is often slightly increased.
Many commercial polymerisations are carried out under solvent reflux. In these circumstances the reaction is often not carried out under a nitrogen blanket as the solvent vapour effectively precludes the oxygen. However, if air is present in the reactor, then as the temperature is raised, contents inside the reactor will pass through compositions which are classified as explosive mixtures. Thus, it is good practice to purge a reactor with nitrogen prior to charging reactants and to maintain a steady but slight flow of nitrogen at all times.
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