Study on the Synthesis of Organic Peroxide Crosslinking Agent Di(tert butylperoxide isopropyl)Benzene
Using tert-butyl hydroperoxide(TBHP)and α,α'-dihydroxy-1,3-diisopropylbenzene(Diol)as the reaction material,and acetic anhydride was used as dehydrating agent to remove water from 70％TBHP.The acetic acid generated after the reaction of acetic anhydride with water was used as the catalyst to synthesize bis(tert butyl peroxyisopropyl)benzene(BIBP).The effects of material ratio,reaction temperature,reaction time,drying temperature,drying pressure,and drying time on the synthesis of crosslinking agent BIBP were studied.The optimal reaction conditions were as follows:the reaction temperature was 50 ℃,the reaction time was 30 min,the mass ratio of TBHP/acetic anhydride was 1/2,the molar ratio of TBHP/Diol material was 2.2/1,the vacuum flash drying temperature was 50 ℃,the pressure was-0.095 MPa,and the time was 1 h.Under the synthetic conditions,the BIBP product was a pure white solid with a purity of 98.930％and a yield of 91.85％.
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