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For one dispersion, the researchers coated the particles with the surfactant lauryl sulfate and polymerized acrylic acid, which together provide a negative charge in the neutral to alkaline pH range.

Propene is turned into polypropylene, a plastic used in packaging and textiles, along with other polymer ingredients such as acrylic acid.

The gel here, which is made of an acrylic acid polymer, acts as a scaffold to hold the structure in place during the printing process.

Diapers today are made from acrylic acid, which is then turned into a super-absorbent polymer, which is then formulated with other materials to make a diaper. 

The nascent U.S. gas-to-propylene industry is widely expected to further process its source of cheap feedstock into intermediates such as propylene oxide, acrylic acid and polypropylene in about three to five years.