Synthesis of hollow silica nanoparticles using poly (acrylic acid)-3,3’-diaminodipropylamine template

摘要: Abstract Synthesis of hollow silica nanoparticles using poly (acrylic acid) (PAA)-amine aggregates as nano-sized template was proposed. The PAA-amine mixtures dissolve in water, but not ethanol, therefore the can be a for particle ethanol and removed from core–shell by addition water. In order to investigate effect amines on formation, four kinds amines; ethylenediamine (EDA), N,N,N’,N’-tetramethylethylenediamine (TED), 3,3’-diaminodipropylamine (DDA), triethylenetetramine (TTA), which interact with carboxylic acid PAA were chosen. PAA-each amine formed around 200 nm dropping PAA/amine under optimum conditions. Using PAA-DDA template, spherical form successfully prepared shortest reaction time hours. primary secondary DDA work only cross-linker PAA, also sol–gel reacting catalyst. It clear that EDA two worked catalyst while TED tertiary didn't. On other hands, TTA provided nanoparticles, however, shell particles mostly collapsed. could thought promote reaction, at same time, high water content induces molecular motion.