what is the right way to prepare polyvinyl acetate via emulsion polymerization !!!!!
what is type of initiator!!
what is emulsion media !!
what is reaction conditions !!!
better if you have references
Thanks
Dear Nagi Greesh, please have a look at the following free acccess review.
DOI: 10.5772/51498
In addition, you may find interesting reviews and books of Mohamed S. El-Aasser, such as the following and others. My Regards
Book: Emulsion Polymerization of Vinyl Acetate
I can give some tips to you
For a basic vinyl acetate emulsion polymerization:
- Use seed technique, and continuous monomer + initiator adding (2 - 4 hours);
- Temperature range between 72-82ºC
- For the main stabilizer you can use a nonionic surfactant (Polyvinyl alcohol);
- Be careful, this polymerization is highly exothermic;
- You can use thermal initiators (Ammonium persulfate..) or redox initiators
Dear Nagi Greesh,
-To prepare polyvinyl acetate via emulsion polymerization, you need to add vinyl acetate monomer, water, emulsifier, and initiator to a reactor and heat the mixture to the desired polymerization temperature. The polymerization reaction will be complete when the desired molecular weight of the final product is achieved.
-Free radical initiators- AIBN
-Water is the most common emulsion media used to prepare polyvinyl acetate via emulsion polymerization. Other emulsion media that can be used include ethylene glycol, propylene glycol, and glycerin. The choice of emulsion media will depend on the desired properties of the final product.
-here am attaching some articles related to this topic:
Article Facile synthesis of branched polyvinyl acetate: Via redox-in...
Aqueous poly(vinyl acetate)-based core/shell emulsion: synthesis, morphology, properties, and application (DOI: 10.1039/C4RA03695F )
Jope this will help you
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