Vinyl Acetate Polymers

Abstract

This article provides information related to the chemistry, manufacture, and use of poly(vinyl acetate). Summary information is provided on vinyl acetate as the primary ingredient in the manufacture of the polymer. This information focuses on the chemical and physical properties of the material and the handling and safety aspects pertinent to its use in a polymerization system. The key material properties of poly(vinyl acetate) homopolymer and copolymers are described. The influences of key components of the polymerization recipe are discussed, such as the effect of the stabilizers, comonomers, and chain‐transfer agents on the reaction and product. Polymerization process aspects are covered with a focus on emulsion polymerization. The mechanisms involved in the vinyl acetate polymerization reaction are discussed. An overview is provided of the applications of the homopolymer and copolymers in adhesives, paint, paper, and other areas. General information is provided in these areas with references which can be used to obtain more specific information.

Impact of Natural Gas and Natural Gas Liquids Supplies on the United States Chemical Manufacturing Industry: Production Cost Effects and Identification of Bottleneck Intermediates

“…14 Approximately 90% of the polyvinyl acetate facilities use an emulsion technique. 15 The model indicates that the suspension polymerization method, using acetaldehyde, will become increasingly competitive with emulsion and solution polymerization as natural gas prices near 2040 levels. If more polyvinyl acetate plants begin using the suspension polymerization process, there will be an increase in demand for acetaldehyde.…”

“Exhaustive” Baeyer-Villiger Oxidation of Poly(Methyl Vinyl Ketone) and Its Copolymers

“…"Exhaustive" BV oxidation of commercial PMVK homopolymers. Comparison of (a) 1 H NMR spectra and (b) 13 C NMR spectra before and after "exhaustive" BV oxidation of commercial PMVK 3a. The NMR spectra were recorded using CDCl3 as a solvent.…”

“…With the first "exhaustive" functionalization condition in hand, we conducted a BV oxidation of commercial PMVK polymers on a preparative scale. In addition to 1 H NMR and 13 C NMR, the resulting polymer was fully characterized by size exclusion chromatography (SEC), Fourier transform infrared spectroscopy (FT−IR), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). The 1 H NMR and 13 C NMR spectra of the polymer samples before and after oxidation are displayed in Figure 3.…”

“…The Mn/Ð of PMVK was 12.5 kDa/1.07. b Determined by 1 H NMR of the crude products using 1,1,1,3-tetrachloropropane as an internal standard. c Determined by SEC (THF) analysis relative to polystyrene standards.…”

Early aqueous dispersion paints: Portuguese artists’ use of polyvinyl acetate, 1960s–1990s

“…The pH measured in extracts of solid films was, with two exceptions, already acidic at the beginning of the experiment; most of them had an initial pH close to 4. In many of the emulsions poly(vinyl alcohol), PVAL, was present, possibly in the form of a co-polymer or protective colloid (Cordeiro & Petrocelli, 2006;Wicks et al, 2007); if PVAL and acetic acid are produced in situ by partially hydrolyzing PVAc this could explain both the initial pH values as well as the fact that after an initial acetic acid release, it stops. From this research it can be seen that 2 for 60% of the samples tested no relevant changes in the pH over time were observed; also it was not possible to establish a correlation between the pH variation and acetic acid release.…”