2 research outputs found
Synthesis and Free Radical Copolymerization of a Vinyl Monomer from Soybean Oil
A one-step method that converts soybean
oil into (acryloylamino)Âethyl
soyate, a new vinyl monomer of free radical polymerization, was developed.
The synthesized monomer combines a vinyl double bond (acryloyl functional
group) and nonconjugated (isolated) double bonds of fatty acids. The
double bond of the acryloyl group is reactive in a free radical chain
polymerization that yields linear macromolecules containing isolated
double bonds in side chains. Monomer reactivity ratios (<i>r</i><sub>1</sub>, <i>r</i><sub>2</sub>) in copolymerization
of the new soybean oil-based acrylic monomer (SBA) with styrene, methyl
methacrylate, and vinyl acetate, as well as the <i>Q</i>–<i>e</i> parameters of the SBA, were determined.
The obtained results indicate that copolymerization can be described
with the classical Mayo–Lewis equation. In terms of polymerizability,
the SBA can be classified as an acrylic monomer. The double bonds
of the fatty acid chains remain mainly unaffected during the free
radical polymerization. The remaining unsaturated fragments in the
side chains make the resulting macromolecules capable of further oxidative
cross-linking and the development of cross-linked polymer coatings
Soy-Based Surface Active Copolymers As a Safer Replacement for Low Molecular Weight Surfactants
Environmentally friendly soybean-based polymeric surfactants
(SBPS)
were synthesized using cationic polymerization of a vinyl ether monomer
derived from soybean and triÂ(ethylene glycol) ethyl vinyl ether. The
ability of SBPS to form micelles that solubilize hydrophobic molecules
has been shown. Micellar “capacity” (size of micellar
interior) increased with increasing polymeric surfactant concentration
and temperature. The obtained results provide evidence for potential
use of SBPS as a safer replacement for low molecular weight surfactants
in the solubilization of poorly soluble ingredients in cosmetics.
The macromolecules developed can be used as both a surface active
agent and an additive that enhances the surface activity of low molecular
weight surfactants (for example, anionic sodium lauryl sulfate) in
personal-care products