Solid acid ferric sulphate Fe2（SO4）3 was prepared and used for the study of the catalytic synthesis of iso-amyl propionate.The optimun reaction conditions were follows:the ratio of amount of substance n（iso-amylalc...Solid acid ferric sulphate Fe2（SO4）3 was prepared and used for the study of the catalytic synthesis of iso-amyl propionate.The optimun reaction conditions were follows:the ratio of amount of substance n（iso-amylalcohol）:n（propionic acid）=1.5,the reaction time 2h,the catalyst quantity 1.5g,and dewatering solvent toluene 10ml.The yield was 97.2% under the optimum reaction conditions.The catalyst being of high catalytic activity for the esterification reactions was prepared very easily and could be used repeatedly.展开更多
The grafting of acrylamide onto corn starch by microwave radiation with the rheologic phase reaction was studied.The effects of the microwave irradiation time,starch pasting,concentration of initiating agent,the mass ...The grafting of acrylamide onto corn starch by microwave radiation with the rheologic phase reaction was studied.The effects of the microwave irradiation time,starch pasting,concentration of initiating agent,the mass ratio of starch and monomer,water content on the graft copolymerization reaction and absorption capacity of high water were investigated.展开更多
文摘Solid acid ferric sulphate Fe2（SO4）3 was prepared and used for the study of the catalytic synthesis of iso-amyl propionate.The optimun reaction conditions were follows:the ratio of amount of substance n（iso-amylalcohol）:n（propionic acid）=1.5,the reaction time 2h,the catalyst quantity 1.5g,and dewatering solvent toluene 10ml.The yield was 97.2% under the optimum reaction conditions.The catalyst being of high catalytic activity for the esterification reactions was prepared very easily and could be used repeatedly.
文摘The grafting of acrylamide onto corn starch by microwave radiation with the rheologic phase reaction was studied.The effects of the microwave irradiation time,starch pasting,concentration of initiating agent,the mass ratio of starch and monomer,water content on the graft copolymerization reaction and absorption capacity of high water were investigated.
