Which polymerization technique solvent is not necessary?
Answers
Answered by
0
Answer:
Explanation:
In polymerization of acrylonitrile in water or any organic solvent, the solvent is not able to dissolve the polymer being formed and so the system becomes heterogeneour in nature with polymer formation.
Answered by
0
Bulk polymerization is a polymerization technique in which solvent is not necessary.
Mass polymerization is the other name for bulk polymerization and its main components includes only a monomer and an initiator.
Bulk polymerization:
- The formulation of the bulk polymerization is very simple since it does not involve a solvent. The main challenge of bulk polymerization is associated with the emission of heat during the process of polymerization.
- Bulk polymerizationhas an advantage in the production of cast-molded products like polystyrene scintillators. It is usually used in case of step-growth polymers and chain-growth polymers.
- In chain-growth polymerization reaction, which are usually exothermic, the heat produced may cause the polymerization reaction to become highly vigorous and difficult to bring under control unless highly efficient cooling coils are being used in the reaction vessel.
Bulk polymerizations are highly viscous due to the lack of solvent and higher molecular weight polymers, hence they are very difficult to stir.
Similar questions