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Related to isoprene: isoprene rule


A colorless volatile liquid, C5H8, used chiefly to make synthetic rubber.

i′so·pre′noid′ (-prē′noid′) adj.


(Elements & Compounds) a colourless volatile liquid with a penetrating odour: used in making synthetic rubbers. Formula: CH2:CHC(CH3):CH2. Systematic name: methylbuta-1,3-diene
[C20: from iso- + pr(opyl) + -ene]


(ˈaɪ səˌprin)

a volatile liquid, C5H8, of the terpene class: used chiefly in the manufacture of synthetic rubber.
References in periodicals archive ?
To the best of our knowledge, reports on vulcanization reaction of isoprene rubbers are not yet available for imidazolinium salts.
Other major popular segments of synthetic rubber include Ethylene Propylene-Diene Monomer Rubber (EPDM), Nitrile Butadiene Rubber (NBR), Butyl Rubber or Isobutylene Isoprene Rubber (IIR) and Poly-isoprene or Isoprene Rubber (IR).
We previously reported the production of a styrene/isoprene copolymer with a weight content of isoprene above 50% using reactive extrusion [10].
Gases detected include benzene, ethanol, ethylbenzene, heptane, hexane, isoprene, methanol, MEK, MIBK, octane, pentane, 1-pentene, toluene, xylene, butane, ethane, methane, propane, ethylene and propylene, www.
CB & I have been chosen as the licensor of the MTBE producing unit which is designed to produce a number of high-value components, such as isoprene, benzene, toluene and xylenes.
This unit is designed to produce a number of high-value components, such as isoprene, benzene, toluene and xylenes.
The research by scientists at the Maxine Dunitz Neurosurgical Institute and Department of Neurosurgery at Cedars-Sinai will be done in laboratory mice and will focus on three - naphthalene, butadiene and isoprene - that often are associated with polluted air.
Long, flexible chains of polyisoprene, which is made up of many individual units of the hydrocarbon isoprene, form an interlocked tangle that allows rubber to compress, stretch and bend without breaking.
However, in 2004, researchers, contrary to popular assumptions, revealed that isoprene likely was involved in the production of particulate matter, tiny particles that can get lodged in lungs, lead to lung cancer and asthma, and damage other tissues as well as the environment--but exactly how was anybody's guess.
These include ethanol, n- and iso-butanol, poly(hydroxyalkanoates), lactic acid, 3-hydroxypropionic acid, diacids (such as succinic, fumaric, and adipic), diols (such as 1,4-butanediol and 1,3-propanediol), isoprene, farnesene, and other olefins from alcohol dehydration: ethylene, propylene, and butadiene.
Poplar, willow or eucalyptus trees, all used as fast-growing sources of renewable wood fuel, emit high levels of the chemical isoprene as they grow, the study said.
It is working with DuPont Industrial Biosciences to develop a bio-based alternative to isoprene, an oil derivative used to produce synthetic rubber.