Synthesis of Poly(vinyl acetate) Using Supercritical Carbon Dioxide and Subsequent Preparation of Poly(vinyl alcohol) 


Vol. 16,  No. 2, pp. 73-79, Jun.  2010


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  Abstract

Vinyl acetate(VAc) was dispersion-polymerized using supercritical carbon dioxide that has many environmental advantages. To get poly(vinyl acetate) (PVAc) of larger molecular weights from conventional emulsion polymerization, VAc was polymerized at temperatures between 333.15 and 343.15 K and pressures between 20 and 40 MPa with initiator (0.5 ~ 5% of monomer) and silicone-based stabilizer (1 ~ 10% of monomer) for 2 ~ 50 hr. The resulting PVAc was analyzed to see the variations in the yield and the molecular weight. The final product of this research, PVA (poly(vinyl alcohol)), was prepared from PVAc by saponification. The effect of saponification conditions on the yield and the molecular weight of polymer were also studied.

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  Cite this article

[IEEE Style]

C. WH, P. QL, S. JJ, "Synthesis of Poly(vinyl acetate) Using Supercritical Carbon Dioxide and Subsequent Preparation of Poly(vinyl alcohol)," Clean Technology, vol. 16, no. 2, pp. 73-79, 2010. DOI: .

[ACM Style]

Choe WH, Pham QL, and Shim JJ. 2010. Synthesis of Poly(vinyl acetate) Using Supercritical Carbon Dioxide and Subsequent Preparation of Poly(vinyl alcohol). Clean Technology, 16, 2, (2010), 73-79. DOI: .

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