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作 者:张天永[1] 曾淼[1] 由兰英[1] 张友兰[1] 袁仲飞
机构地区:[1]天津大学化工学院,天津300072 [2]南通柏盛化工
出 处:《应用化学》2007年第6期644-647,共4页Chinese Journal of Applied Chemistry
基 金:教育部留学回国人员科研启动基金(教外司留[2002]247)
摘 要:用四溴双酚S(TBS)为原料,以滴加方式加入醚化剂烯丙基氯,在NaOH水溶液中用十六烷基三甲基溴化铵(CTAB)催化醚化法和其它表面活性剂促进醚化法合成了收率、纯度均较高的阻燃剂四溴双酚S双烯丙基醚(ATBS)。研究了催化剂用量、滴加时间、异丙醇用量、水用量对ATBS收率及纯度的影响。在烯丙基氯用量为15mL、TBS为28.3g、CTAB为0.1~0.18g、反应温度65~75℃、保温时间4h,ATBS收率可达95.5%~97.5%,纯度为95.5%~98.0%。当n(烯丙基氯):n(TBS)=1:2.5、反应温度80—90℃、保温时间8h,表面活性剂DBS为0.8~1.0g、OP-10为0.5g、OS-15为0.8g时,ATBS最佳收率分别为95.2%、97.3%和95.5%.纯度分别为94.0%、92.7%和90.1%。High yield and purity flame retardant bis-(4-allyloxy-3,5-dibromophenyl) sulfone (ATBS) was obtained by allyl-etherizing bis-( 4-hydrxy-3,5-dibromophenyl) sulfone(TBS) with dropping allyl chloride in aqueous NaOH in the presence of cetyltrimethylammonium bromide (CTAB) or other surfactants. The catalyst amount, dropwise time, i-propanol amount, water amount influencing the yield and purity of ATBS were particularly discussed. When V( allyl chloride) = 15 mL, m(TBS) = 28.3 g, reaction temperature 65 - 75 ~C, reaction time 4 h, m(CTAB) =0. 1 -0. 18 g, ATBS was prepared in a yield of 95.5% -97.5% and a purity of 95.5% - 98.0%. When n ( allyl chloride) : n (TBS) = 1 : 2. 5, reaction temperature 80 - 90 ℃, reaction time 8 h, and the used surfactant was m(DBS) = 0. 8 - 1.0 g, m(OP-10) = 0. 5 g or m(OS-15) = 0. 8 g, respectively, ATBS was synthesized in a yield of 95.2%, 97. 3% or 95.5% and the purity of 94. 0%, 92. 7% or 90. 1%, respectively.
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