广东化工
廣東化工
엄동화공
GUANGDONG CHEMICAL INDUSTRY
2012年
18期
178-178,180
,共2页
五溴苄基溴%复合引发剂%合成
五溴芐基溴%複閤引髮劑%閤成
오추변기추%복합인발제%합성
Pentabromobenzyl bromide%composite initiators%synthesis
以AIBN和BPO混合物为复合引发剂，由五澳甲苯和溴合成五溴苄基溴。重点考察了复合引发剂的掺杂比，以及对复合引发剂引发效率、引发剂的用量、原料配比、反应时间等工艺参数进行优化。实验结果表明，m（AJBN）：m（BPO）=1．5为复合引发剂，对合成五溴苄基溴的合成：行着良好的引发效率，当w（复合引发荆）=0．6％（以五溴甲苯的质量为参比），n（溴）：n（五溴甲苯）=2，5：1，CCl4为溶剂，反应6h后，五澳苄基溴的产率达90．1％。
以AIBN和BPO混閤物為複閤引髮劑，由五澳甲苯和溴閤成五溴芐基溴。重點攷察瞭複閤引髮劑的摻雜比，以及對複閤引髮劑引髮效率、引髮劑的用量、原料配比、反應時間等工藝參數進行優化。實驗結果錶明，m（AJBN）：m（BPO）=1．5為複閤引髮劑，對閤成五溴芐基溴的閤成：行著良好的引髮效率，噹w（複閤引髮荊）=0．6％（以五溴甲苯的質量為參比），n（溴）：n（五溴甲苯）=2，5：1，CCl4為溶劑，反應6h後，五澳芐基溴的產率達90．1％。
이AIBN화BPO혼합물위복합인발제，유오오갑분화추합성오추변기추。중점고찰료복합인발제적참잡비，이급대복합인발제인발효솔、인발제적용량、원료배비、반응시간등공예삼수진행우화。실험결과표명，m（AJBN）：m（BPO）=1．5위복합인발제，대합성오추변기추적합성：행착량호적인발효솔，당w（복합인발형）=0．6％（이오추갑분적질량위삼비），n（추）：n（오추갑분）=2，5：1，CCl4위용제，반응6h후，오오변기추적산솔체90．1％。
Pentabromobenzyl bromide synthetized by pentabrominated toluene and bromine with composite initiators of the mixture of AIBN and BPO was studied. The effects of different factors such as initiation efficiency, the amount of composite initiators, mass ratio of bromine to pentabrominated toluene, reaction time were investigated in detail. The results showed that it exhibited excellently initiation efficiency for composite initiators of AIBN and BPO to be mixed mass ratio of 1: 1.5 as composite initiators. When the dosage of composite initiators was based on 0.6 % of the massl of pentabrominated toluene, the mass ratio of bromine to pentabrominated toluene was 2.5:1, carbon tetrachloride was solvent, the reaction time was 6 h, the yield of pentabromobenzyl was 90.1%.
