活性疏水单体辛基苯乙烯的合成及结构表征

SYNTHESIS AND CHARACTERIZATION OF ACTIVE HYDROPHOBIC MONOMER STYRENE OCTYL

以正辛基苯为起始原料,通过傅克酰化、负氢转移还原、醇脱水成烯三步反应制备正辛基苯乙烯活性疏水单体。对正辛基苯乙酮反应条件是:无水三氯化铝/乙酸酐/正辛基苯(摩尔比)=3∶2∶1,25℃反应5h,起始反应时,反应物在0℃溶于二氯甲烷。对正辛基苯甲醇反应条件是:对正辛基苯乙酮/硼氢化钠(摩尔比)=1∶3,60℃反应2h,起始反应单体在0℃溶于甲醇。对正辛基苯乙烯反应条件是:1-甲基对正辛基苯甲醇/对甲基苯磺酸一水合物(摩尔比)=1∶2,逐渐加热至160℃,起始反应单体溶于甲苯。

This thesis is Octyl benzene as starting material,through friedel crafts acylation,FriedelCrafts acylation reaction,hydrogen transfer reduction,dehydration of the alcohol to alkene,octyl styrene active hydrophobic monomer.Reaction condition for n-octyl acetophenone is followed：molar ratio of anhydrous aluminum chloride,acetic anhydride and n-octyl benzene is 3∶2∶1,temperature is25 ℃,the reaction time is 5h.When the reaction started,the reactants dissolved in dichloromethane at 0 ℃.Reaction condition for n-octyl benzyl alcohol is followed：molar ratio of n-octyl acetophenone and Sodium borohydride is 1∶3,temperature is 60 ℃,the reaction time is 2h.When the reaction started,monomers dissolved in methanol at 0 ℃.Reaction condition for n-octyl styrene is followed：molar ratio of 1-methyl-n-octyl to benzyl alcohol and methyl acid monohydrate is 1∶2,it is gradually heated to 160 ℃,monomer dissolved in toluene when the initial reaction processed.