Acrylic polymers
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ACRYLIC POLYMERS
Starting from acrylic acid (AA) or methacrylic acid (MAA), you can incorporate other molecules with a C=C group into the final polymer. A simple example is a polymer based on MAA and maleic anhydride (MA).
By varying the molar ratio MAA:MA, you can change the characteristic of the final polymer.
Instead of MA you can add an amphoteric, cationic component or even a triglyceride.
Most reactions are carried out in water via emulsion polymerisation.
Solvent polymerisation is an option if one of the components is not water soluble, like a C18-acrylate.
In this case a different initiator is needed and after completion of the reaction, solvent must be distilled off.
HOW TO PRODUCE ACRYLIC POLYMERS IN BULK
In case of an AA-MA copolymer put MA and water in the reactor and heat till 80 degrees C, add AA slowly until the desired molar ratio has been reached, simultaneously add the initiator to the reactor.
If you want you can add a chain stopper to control the molecular weight of final polymer.
After completion of the reaction, the polymer can be neutralized with KOH or NaOH.
Typical specification of the polymer is:
Appearance: Yellow liquid
Concentration: 40%
pH (10% in water): 7+/- 0.5
