Solvent effects on morphologies of hollow silica nanoparticles prepared by poly-acrylic acid template method

被引：2
|
作者：
Nakashima, Yuki [1 ]
Katsui, Hirokazu [1 ]
Kishikawa, Nobuyuki [2 ]
Kawase, Satoru [2 ]
Ohji, Tatsuki [1 ]
Fukushima, Manabu [1 ]
机构：
[1] Natl Inst Adv Ind Sci & Technol, Moriyama Ku, Nagoya 4638560, Japan
[2] Nagoya Municipal Ind Res Inst, Atsuta Ku, Nagoya 4560058, Japan
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2023年 / 659卷
关键词：
Hollow particle; Silica; Template method; Alcohol; SIZE; NANOSPHERES; SPHERES; PARTICLES; COMPOSITE; SYSTEMS; FILMS; AREA;
D O I：
10.1016/j.colsurfa.2022.130852
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
This paper describes effects of alcohol solvents on size and silica shell microstructure of hollow silica nanoparticles (HSNPs) prepared with ammonium polyacrylate (APA) templates. The various solvents were prepared by changing volume ratio of mixed 1-propanol, 1-butanol, and 1-pentanol against ethanol, and the investigation was based on the octanol/water partition coefficients (log Pow). The log Pow strongly affected the morphologies of the formed APA templates. When the log Pow was higher than 0.250, a precipitate was formed. For the log Pow lower than 0.250, the template was obtained, and its diameter became larger with increasing the log Pow, depending also on the water solubility of APA in alcohol solvents. In addition, the silica shell became rough in alcohol solvents with higher log Pow because the template contained a large amount of aqueous solution with catalyst. Therefore, the morphologies of the HSNPs could be controlled by the alcohol solvents.
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页数：7
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