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Dicyclopentadiene, abbreviated DCPD, is a chemical compound with formula C 10 H 12. At room temperature, it is a white brittle wax, although lower purity samples can be straw coloured liquids. The pure material smells somewhat of soy wax or camphor, with less pure samples possessing a stronger acrid odor. Its energy density is 10,975 Wh/l.
Cyclopentadiene production is usually not distinguished from dicyclopentadiene since they interconvert. They are obtained from coal tar (about 10–20 g/t) and by steam cracking of naphtha (about 14 kg/t). [8] To obtain cyclopentadiene monomer, commercial dicyclopentadiene is cracked by heating to around 180 °C.
Polydicyclopentadiene (PDCPD) is a polymer material which is formed through ring-opening metathesis polymerization [2] (ROMP) of dicyclopentadiene (DCPD). PDCPD exhibits high crosslinking, which grants its properties, such as high impact resistance, good chemical corrosion resistance, and high heat deflection temperature.
Idealized EPDM polymer, red = ethylene-derived; blue = propylene-derived; black = ethylidene norbornene-derived. EPDM rubber (ethylene propylene diene monomer rubber) [1] [2] [3] is a type of synthetic rubber that is used in many applications.
The Gmelin rare earths handbook lists 1522 °C and 1550 °C as two melting points given in the literature, the most recent reference [Handbook on the chemistry and physics of rare earths, vol.12 (1989)] is given with 1529 °C.
Winter weather sometimes invites unbearable temperatures, especially when indoor heat is inconsistent. But this wrap by one of Oprah's favorite brands is the soft, cozy layer you'll want to drape ...
U.S. stocks end little changed on Tuesday after Fed Chair Powell rehashes last month's comments. Focus turns to inflation, earnings and tariffs.
A space heater sold on Amazon is being recalled due to the potential to cause an "electric shock," resulting in a fire hazard, the U.S. Consumer Product Safety Commission (CPSC) announced Thursday ...