Learn more about polyvinyl acetate in this article.
Polymerization vinyl acetate.
Thus the type of emulsion polymerization process batch semi continuous or.
Vinyl acetate is the acetate ester of vinyl alcohol.
It is also used in adhesives.
Since vinyl alcohol is highly unstable with respect to acetaldehyde the preparation of vinyl acetate is more complex than the synthesis of other acetate esters.
The photoinduced polymerization of vinyl acetate vac proceeded very fast even at 40 c with a catalytic amount of mn 2 co 10 0 025 mol of vac or 5 0 mol of r i and completed within a few hours to give the polymers with controlled molecular weights up to 10 5.
Polyvinyl acetate a synthetic resin prepared by the polymerization of vinyl acetate.
Reacts with hydrogen peroxide to form explosive peracetic acid.
Vinyl acetate may undergo spontaneous exothermic polymerization on exposure to light.
The polymerization of vinyl acetate is probably the second most frequent cause of runaway reaction accidents in the chemical industry after the phenol formaldehyde runaway reaction.
Vinyl acetate has high water solubility a high monomer polymer swelling ratio and a high chain transfer constant.
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Polyvinyl acetate adhesives pvac polyvinyl acetate latex known as white latex is made of vinyl acetate monomer water dispersing agent polymerization starter and other auxiliary materials mixed together through emulsion polymerization.
In its most important application polyvinyl acetate serves as the film forming ingredient in water based latex paints.
Reacts with air or water to produces peroxides that initiate explosively violent polymerization.
Polyvinyl acetate is prepared by the polymerization of vinyl acetate monomer free radical vinyl polymerization of the monomer vinyl acetate.
Vinyl acetate c4h6o2 cid 7904 structure chemical names physical and chemical properties classification patents literature biological activities safety.
In the present report the madix polymerization of vinyl acetate in bulk or solution polymerization dichloromethane dcm or ethyl acetate was investigated in order to optimize monomer conversion and achieve molecular weight control.
The controlled polymerization was photoresponsive.
Applications edit as an emulsion in water pvac emulsions are used as adhesives for porous materials particularly for wood paper and cloth and as a consolidant for porous building stone in.
It is a nonstructural adhesive with low price convenient usage and wide application range.
The emulsion polymerization of vinyl acetate possesses the rather typical properties in comparison the emulsion polymerizations of the comonomers.
