Biomaterial Database

The migration of acrylonitrile from acrylonitrile/butadiene/styrene polymers into food-simulating liquids. 1991

T D Lickly, and D A Markham, and M L Rainey

Dow Chemical Company, Midland, MI 48674.

The correlation of residual acrylonitrile (AN) monomer concentration in AN-containing polymers with AN migration into food simulants is of interest because the US FDA regulates the use of these polymers on the basis of the amount of AN that may migrate into food simulants. Studies of the migration of AN into water from seven acrylonitrile/butadiene/styrene polymers with varying composition and residual AN levels showed that a linear relationship exists between the concentration of AN in the polymer and the amount of AN migrating, for a given set of exposure conditions. A linear relationship was also observed between the diffusion coefficients generated from the experimental data using a simple Fickian diffusion model and the inverse of the absolute temperature of exposure.

UI	MeSH Term	Description	Entries
D011108	Polymers	Compounds formed by the joining of smaller, usually repeating, units linked by covalent bonds. These compounds often form large macromolecules (e.g., BIOPOLYMERS; PLASTICS).	Polymer
D002070	Butadienes	Four carbon unsaturated hydrocarbons containing two double bonds.	Butadiene Derivative,Butadiene Derivatives,Derivative, Butadiene,Derivatives, Butadiene
D004058	Diffusion	The tendency of a gas or solute to pass from a point of higher pressure or concentration to a point of lower pressure or concentration and to distribute itself throughout the available space. Diffusion, especially FACILITATED DIFFUSION, is a major mechanism of BIOLOGICAL TRANSPORT.	Diffusions
D000181	Acrylonitrile	A highly poisonous compound used widely in the manufacture of plastics, adhesives and synthetic rubber.	Vinyl Cyanide,Cyanide, Vinyl
D000431	Ethanol	A clear, colorless liquid rapidly absorbed from the gastrointestinal tract and distributed throughout the body. It has bactericidal activity and is used often as a topical disinfectant. It is widely used as a solvent and preservative in pharmaceutical preparations as well as serving as the primary ingredient in ALCOHOLIC BEVERAGES.	Alcohol, Ethyl,Absolute Alcohol,Grain Alcohol,Alcohol, Absolute,Alcohol, Grain,Ethyl Alcohol
D001628	Beverages	Liquids that are suitable for drinking. (From Merriam Webster Collegiate Dictionary, 10th ed)	Beverage
D013343	Styrenes	Derivatives and polymers of styrene. They are used in the manufacturing of synthetic rubber, plastics, and resins. Some of the polymers form the skeletal structures for ion exchange resin beads.
D013696	Temperature	The property of objects that determines the direction of heat flow when they are placed in direct thermal contact. The temperature is the energy of microscopic motions (vibrational and translational) of the particles of atoms.	Temperatures
D014867	Water	A clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)	Hydrogen Oxide