Controlled radical polymerization (CRP) is a typical procedure for the synthesis of polymers with well-defined molecular 

parameters (Mn, Đ), composition, and architecture. However, control of the radical polymerization of vinyl acetate (VAc) 

and removal of residual metallic controlling agents from polyvinyl acetate (PVAc) remains a concern. Herein, tubular reactor

connected to fixed bed of silica gel particles is designed for continuous flow cobalt-mediated radical polymerization 

(CMRP) of VAc and incessant separation of residual cobalt acetylacetonate (Co(acac)2) from product to get purified PVAc 

with well-defined molecular parameters. Linear polymerization time dependence of Ln[M]0/[M] and ascent of molecular 

weight (Mn) with the rise in conversion while keeping narrow polydispersity (Đ ≈ 1.5) revealed the CRP of VAc in the 

continuous flow process. The free Co(acac)2 from the polymer matrix was adsorbed by fixed bed of silica gel, resulting in 

pure PVAc with a decolorization efficiency (DE) of 65%. In addition, the obtained PVAc was hydrolysed to get polyvinyl 

alcohol (PVA) with isotactic triads (mm) of 26%, higher to compared with mm of 22% of PVA produced by saponification

of PVAc obtained in the absence of Co(acac)2. This study therefore provides continuous flow process, an innovative 

strategy, to produce purified PVAc with well controlled molecular parameters without requiring additional purification 

steps and enabling technical assistance for potential large-scale practicability.