Hi guys, am producing S_DVB copolymer by direct chloromethylation method . am using DVB as a monemer , in my previous synthesis i did not add Inhibitor removers to remove TBC is that will effect on the polymersiation process or charectestics of the formed beads . and what is the best method can be follwed to remove TBC from DVB
Many monomers are often stabilized by the addition of inhibitors to prevent undesired polymerization during storage & transportation.
When an inhibitor is present in the monomer's bottle & polymerization is tried out while it is present, formation of a solid does not necessarily mean that there was polymer synthesis. I saw few students who have fallen in this mistake.
Before conducting any polymerization, the inhibitor must be removed. An easy way for removing TBC & other phenolic compounds, is to add a sodium hydroxide solution to the liquid monomer in a separatory funnel followed by careful shaking. Two layers will form & the lower one is usually the undesired. From the mouth of the separatory funnel, the upper monomer layer is transferred into a beaker which contains a drying agent(e.g. CaCl2). The dry monomer is separated by careful decantation "pouring liquid & leaving solid behind". It may be ready at this stage but to be sure, the monomer is better be subjected to vacuum distillation "under reduced pressure". After that, the monomer is ready for polymerization. Wishing you success.
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