A surprisingly narrow particle size distribution for polyacrylic acid nanospheres produced by precipitation polymerization and revealed by small-angle X-ray scattering

被引：1
|
作者：
Takano, Shin [1 ]
Ono, Ryohei [1 ]
Sakurai, Kazuo [1 ]
机构：
[1] Univ Kitakyushu, Dept Chem & Biochem, 1-1 Hibikino, Kitakyushu, Fukuoka 8080135, Japan
来源：
POLYMER JOURNAL | 2023年 / 55卷 / 12期
基金：
日本学术振兴会;
关键词：
POLY(DIVINYLBENZENE) MICROSPHERES; MONODISPERSE; HYDROGELS; PH;
D O I：
10.1038/s41428-023-00836-y
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Narrow size distributions of spherical polyacrylic acid (PAA) particles are produced through precipitation polymerization without the need for stabilizers or emulsifiers. In this study, we employed small-angle X-ray scattering (SAXS) to investigate the polydispersity index (PDI) associated with the molecular weight distribution of the particles. By fitting the SAXS profiles, we were able to determine particle sizes, standard deviation, and the PDI with high precision. Our findings from SAXS confirmed that the PAA particles are monodisperse, both statistically and quantitatively, with a PDI of less than 1.05.
引用
收藏
页码：1387 / 1391
页数：5
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