应用化工
應用化工
응용화공
APPLIED CHEMICAL INDUSTRY
2014年
5期
887-889,893
,共4页
分子印迹%聚硅氧烷微球%甲苯硝化%选择性催化
分子印跡%聚硅氧烷微毬%甲苯硝化%選擇性催化
분자인적%취규양완미구%갑분초화%선택성최화
molecularly imprinting%polysiloxane microspheres%nitration of toluene%selective catalyzing
以4-硝基苯酚为模板，通过正硅酸乙酯水解，制备了分子印迹聚硅氧烷微球，以紫外光谱考察了分子印迹聚硅氧烷微球对4-硝基甲苯的吸附行为，研究了以65％硝酸为硝化剂，分子印迹聚硅氧烷微球催化甲苯硝化的特性，并对反应条件进行了优化。结果表明，分子印迹聚硅氧烷微球可选择性的催化甲苯硝化，在优化条件下，甲苯转化率可达91.2％，产物 O/ P 值可达1.37。
以4-硝基苯酚為模闆，通過正硅痠乙酯水解，製備瞭分子印跡聚硅氧烷微毬，以紫外光譜攷察瞭分子印跡聚硅氧烷微毬對4-硝基甲苯的吸附行為，研究瞭以65％硝痠為硝化劑，分子印跡聚硅氧烷微毬催化甲苯硝化的特性，併對反應條件進行瞭優化。結果錶明，分子印跡聚硅氧烷微毬可選擇性的催化甲苯硝化，在優化條件下，甲苯轉化率可達91.2％，產物 O/ P 值可達1.37。
이4-초기분분위모판，통과정규산을지수해，제비료분자인적취규양완미구，이자외광보고찰료분자인적취규양완미구대4-초기갑분적흡부행위，연구료이65％초산위초화제，분자인적취규양완미구최화갑분초화적특성，병대반응조건진행료우화。결과표명，분자인적취규양완미구가선택성적최화갑분초화，재우화조건하，갑분전화솔가체91.2％，산물 O/ P 치가체1.37。
Molecularly imprinted polysiloxane microspheres were synthesized by hydrolysis of ethyl silicate with 4-nitrophenol as a template. The adsorption of 4-nitrotoluen on molecularly imprinted polysiloxane microspheres were detected by UV. The characteristic catalytic nitration of toluene with molecularly im-printed polysiloxane microspheres was studied and optimal reaction conditions were defined,using 65%HNO3 as nitration reagent. The result showed that the nitration of toluene was selective catalyzed by mo-lecularly imprinted polysiloxane microspheres,the conversion of toluene was 91. 2% ,and the O/ P value of products reached up to 1. 37 on optimal conditions.
