Styrene


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.

styrene

[′stī‚rēn]
(organic chemistry)
C6H5CH:CH2 A colorless, toxic liquid with a strong aroma; insoluble in water, soluble in alcohol and ether; polymerizes rapidly, can become explosive; boils at 145°C; used to make polymers and copolymers, polystyrene plastics, and rubbers. Also known as phenylethylene; styrene monomer; vinylbenzene.

Styrene

 

(also phenylethylene, vinylbenzene), a colorless liquid with a characteristic odor, a melting point of 30.6°C, a boiling point of 145.2°C, and a density of 0.906 g/cm3 (20°C).

Styrene is practically insoluble in water but is miscible with most organic solvents. The compound is readily oxidized, it combines with halogens, and it also undergoes polymerization and copo-lymerization with various monomers. Since polymerization proceeds at room temperature, and sometimes explosively, inhibitors (tert-butylpyrocatechol, hydroquinone) are added during storage. The principal method of producing styrene is the catalytic dehydrogenation of ethylbenzene in a steam flow at 500°–630°C.

Styrene is used chiefly in the production of polystyrene, as well as in the production of such copolymers as butadiene-styrene rubbers and polyester resins. Copolymers of styrene with divinyl-benzene serve as ion-exchange resins.

Vapors of styrene irritate the mucous membrane; concentration in the air must not exceed 0.005 milligram per cubic decimeter.

References in periodicals archive ?
Styrene industry market dynamics in Taiwan from 2005 to 2019, consisting of market size, demand and production outlook, demand by end-use sector, and average prices
Styrene industry market dynamics in Poland from 2005 to 2019, consisting of market size, demand and production outlook, demand by end-use sector, and average prices
The most important vibration bands, which allow the identification of poly(styrene) are summarized as follow, the peak at 1600 cm-1 results from the vibrations of aromatic ring of styrene.
Styrene's classification as a 'reasonably anticipated carcinogen has not significantly affected the use of CIPP liners containing styrene.
In the end, consumption of styrene depends on the demand of consumers for the different styrene based products.
Styrene spent her final days in a hospice in St Leonards-On-Sea, East Sussex.
Styrene - who released a new album just last month - revealed she was battling breast cancer earlier this year.
In 2005 and 2006, demand was not strong enough to generate a healthy return for styrene producers.
O'Connor says that he was not sure whether the microbes would tolerate the impure styrene, but "they grew well.
Audiemetric findings in workers exposed to low levels of styrene and noise.
1998) observed that at high loadings of 210 to 225 percent, styrene could prevent decay in Cryptomeria japonica D.