Organic hybrid silica colloidal particles are widely used in the field of biomedicine due to their unique properties.The size of nanoparticles required for different organs tissues is also different.Therefore,size-controllable organic hybrid silica colloidal particles play a crucial role in biomedical ap-plications.In this paper,vinyltrimethoxysilane(VTMS)was used as the precursor of silane,and am-monium hydroxide was used as the catalyst.Size-controlled organic hybrid silica colloidal particles were prepared by the spontaneous emulsification of the silane precursor under alkaline conditions,fol-lowed by polymerization initiated by ammonium persulfate(APS).The effects of different conditions,such as the type of initiator,precursor concentration,ammonium hydroxide concentration,and emulsi-fication time,on the size of the organic hybrid silica colloidal particles were investigated using field e-mission scanning electron microscopy and ImageJ software.The results showed that an increase in pre-cursor concentration led to an increase in the size of the organic hybrid silica colloidal particles,while an increase in ammonium hydroxide concentration had the opposite effect.
关键词
硅烷自发乳化/乙烯基三甲氧基硅烷/氢氧化铵/尺寸可控/有机杂化二氧化硅胶体粒子
Key words
spontaneous emulsification of silane/vinyltrimethoxysilane/ammonium hydroxide/size-controlled/organic hybrid silica colloidal particle
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