文章使用手性大分子引发剂poly-150引发手性单体1与非手性单体2共聚得到侧基有活泼酯修饰的共聚物poly(150-150/2n),采用后修饰的方法将羟基修饰的荧光分子3a、3b、3c与poly(150-150/2n)进行酯交换反应,即可得到不同荧光基团修饰的手性...文章使用手性大分子引发剂poly-150引发手性单体1与非手性单体2共聚得到侧基有活泼酯修饰的共聚物poly(150-150/2n),采用后修饰的方法将羟基修饰的荧光分子3a、3b、3c与poly(150-150/2n)进行酯交换反应,即可得到不同荧光基团修饰的手性螺旋聚异腈poly(150-150/3n)。通过核磁共振氢谱(1 H nuclear magnetic resonance,1 H NMR)、氟核磁共振谱(19F nuclear magnetic resonance,19F NMR)等手段对聚合物的结构进行表征,使用圆二色光谱(circular dichroism,CD)、荧光光谱及圆偏振发光(circularly polarized luminescence,CPL)光谱对聚合物的光学性质进行表征,发现共聚物poly(150-150/3n)为一类具有CPL效应的高分子材料。展开更多
The adsorption behavion of Cu 2+ on fiber containing amidoxime groups(AOCF)was studied.The Cu 2+ concentration of aqueous solution was from 0 0087 mol/L to 0 0335 mol/L.The result showed that the adsorption of Cu 2+ o...The adsorption behavion of Cu 2+ on fiber containing amidoxime groups(AOCF)was studied.The Cu 2+ concentration of aqueous solution was from 0 0087 mol/L to 0 0335 mol/L.The result showed that the adsorption of Cu 2+ on AOCF fitted the Langmuir model and the adsorption equation was Γ=0 276 C /(1+0 0282 C )mg/g.The adsorption reaction followed first order kinetics by means of differential method: C = C 0e - kt .The rate constant of adsorption was obtained at different temperature, k =4 47×10 3e Ea/RT ,and the apparent activation energy was determined to be 24 89 kJ/mol.展开更多
文摘文章使用手性大分子引发剂poly-150引发手性单体1与非手性单体2共聚得到侧基有活泼酯修饰的共聚物poly(150-150/2n),采用后修饰的方法将羟基修饰的荧光分子3a、3b、3c与poly(150-150/2n)进行酯交换反应,即可得到不同荧光基团修饰的手性螺旋聚异腈poly(150-150/3n)。通过核磁共振氢谱(1 H nuclear magnetic resonance,1 H NMR)、氟核磁共振谱(19F nuclear magnetic resonance,19F NMR)等手段对聚合物的结构进行表征,使用圆二色光谱(circular dichroism,CD)、荧光光谱及圆偏振发光(circularly polarized luminescence,CPL)光谱对聚合物的光学性质进行表征,发现共聚物poly(150-150/3n)为一类具有CPL效应的高分子材料。
文摘The adsorption behavion of Cu 2+ on fiber containing amidoxime groups(AOCF)was studied.The Cu 2+ concentration of aqueous solution was from 0 0087 mol/L to 0 0335 mol/L.The result showed that the adsorption of Cu 2+ on AOCF fitted the Langmuir model and the adsorption equation was Γ=0 276 C /(1+0 0282 C )mg/g.The adsorption reaction followed first order kinetics by means of differential method: C = C 0e - kt .The rate constant of adsorption was obtained at different temperature, k =4 47×10 3e Ea/RT ,and the apparent activation energy was determined to be 24 89 kJ/mol.
