Dicyclohexyl peroxy dicarbonate

The autoxidation of cyclohexane initiated by dicyclohexyl peroxy-dicarbonate (DCPD) takes this pathway 38> ... 

In the multiple-feed process an initiator mix is used to obtain a smooth temperature profile and low initiator consumption. The initiator mix consists of three or four organic peroxides from Table 5.1-2 differing in activity. To cover the range of lower temperatures, dicyclohexyl peroxy dicarbonate, /-butylperoxy neodecanoate, or /-butylperoxy pivalate are used. The peroxide for moderately high temperatures is frequently /-butylperoxy 2-ethylhexanoate or /-butylperoxy benzoate. The high-temperature initiator in the mix is di(/-butyl)peroxide. 

The costs assume the production of pellets on 1997 German prices. Polymerization-grade ethylene is available at 5 MPa. The on-stream time is 8,000 h/a. The tubular reactors equipped with multiple feeds of ethylene and peroxide initiators are operated at 200 MPa. The initiators are a mix of dicyclohexyl peroxy dicarbonate, /-butylperoxy pivalate, /-butylperoxy 2-ethylhexanoate, and di(/-butyl)peroxide, which is fed in after the heating zone and at two further locations downstream. 

Initiation during such degradation is often the result of irradiation by ambient light, but an alternative initiator used in the study of polymer chemiluminescence is dicyclohexyl- peroxy dicarbonate (DCPD) [23]. 

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