PVEt

PVEt, short for poly(vinyl ethyl ether), is a synthetic polymer in the family of vinyl ethers. Its repeating unit is -CH2-CH(OEt)-, derived from vinyl ethyl ether monomer (CH2=CH-OCH2CH3). PVEt is commonly prepared by cationic polymerization of vinyl ether monomers, using Lewis acid catalysts under controlled temperature to obtain targeted molecular weights and architectures. It is typically an amorphous thermoplastic that is soluble in a range of organic solvents such as chloroform, THF, and chlorobenzene, enabling solution processing and film formation.

PVEt features a relatively low glass transition temperature compared with many other polymers, imparting good flexibility at room temperature. The ether linkages in the backbone can undergo chemical modification and cross-linking in the presence of acids or via post-polymerization functionalization, allowing tuning of polarity and intermolecular interactions.

Applications include use as a binder and matrix for coatings and adhesives, where its film-forming ability and solvent compatibility are valued. It can also be blended with other vinyl ether polymers or copolymerized with comonomers to adjust properties such as Tg, solubility, and refractive index. PVEt derivatives are explored in research on flexible electronics and specialty coatings.

See also: poly(vinyl ether) family, poly(vinyl methyl ether), vinyl ether polymers.