Search results
Results From The WOW.Com Content Network
Dicumyl peroxide is an organic compound with the formula (C 6 H 5 CMe 2 O) 2 (Me = CH 3). Classified as a dialkyl peroxide, it is produced on a large scale industrially for use in polymer chemistry. It serves as an initiator and crosslinking agent in the production of low density polyethylene. [2]
Dialkyl peroxides, e.g., dicumyl peroxide, are synthesized by addition of hydrogen peroxide to alkenes or by O-alkylation of hydroperoxides. Diacyl peroxides are typically prepared by treating hydrogen peroxide with acid chlorides or acid anhydrides in the presence of base: [1] H 2 O 2 + 2 RCOCl → (RCO 2) 2 + 2 HCl H 2 O 2 + (RCO) 2 O → ...
Depending on the conditions, autoxidation of cumene gives dicumyl peroxide or cumene hydroperoxide. Both reactions exploit the weakness of the tertiary C-H bond. The tendency of cumene to form peroxides by autoxidation poses safety concerns. [6] Tests for peroxides are routinely conducted before heating or distilling.
العربية; Български; Čeština; Deutsch; Ελληνικά; Español; فارسی; Français; Galego; Bahasa Indonesia; Italiano; ქართული
Peroxide crosslinking (PE-Xa): The crosslinking of polyethylene using peroxides (e.g. dicumyl peroxide or di-tert-butyl peroxide) is still of major importance. In the so-called Engel process , a mixture of HDPE and 2% [ 12 ] peroxide is at first mixed at low temperatures in an extruder and then crosslinked at high temperatures (between 200 °C ...
العربية; Azərbaycanca; বাংলা; Български; Bosanski; Català; Чӑвашла; Čeština; Deutsch; Ελληνικά; Español; Esperanto; Euskara
An organic compound is any of a large class of chemical compounds whose molecules contain carbon, with the exception of carbides, carbonates, Cyanides and carbon oxides. ...
In chemistry, main group peroxides are peroxide derivatives of the main group elements. Many compounds of the main group elements form peroxides ( R−O−O−R' ), and a few are of commercial significance.