21 июля, 2015 
Malyar |
FORMULATION 2-8
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The polymerisation is a bulk process which is a very reactive and strongly exothermic process, thus a special reactor with efficient cooling is required. Solvent is not available to control the reaction by refluxing and thereby removing the heat of reaction. The monomers are converted to a viscous gel which is extruded through a nozzle at the base of the reactor onto a cooled, moving belt. The resultant cast film is disintegrated to flakes. These flakes are subsequently dissolved in aqueous alkali.
(ii) Emulsion
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FORMULATION 2-9
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The polymerisation process follows a procedure very similar to the conventional emulsion process described earlier.
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