Preparation and Characterization of Poly(methyl methacrylate) Particles by Combined Dispersion and Emulsion Polymerization

被引：9
|
作者：
Badr, Ibrahim [1 ]
Lahmar, Hadjira [1 ,2 ]
Kaewsaneha, Chariya [1 ,3 ]
Saidi-Besbes, Salima [2 ]
Elaissari, Abdelhamid [1 ]
机构：
[1] Univ Lyon, Univ Claude Bernard Lyon 1, CNRS, LAGEP UMR 5007, F-69622 Lyon, France
[2] Univ Oran 1 Ahmed Ben Bella, LSOA, Dept Chim, Fac Sci Exactes & Appl, Bp 1524 El Mnaouer, Oran 31000, Algeria
[3] Thammasat Univ, SIIT, Sch Biochem Engn & Technol, Pathum Thani 12121, Thailand
来源：
MACROMOLECULAR RESEARCH | 2018年 / 26卷 / 09期
关键词：
submicron PMMA particles; controllable particle size; monodispersed latex particle; dispersion polymerization; MONODISPERSE POLYSTYRENE MICROSPHERES; METHYL-METHACRYLATE; SIZE DISTRIBUTION; POLAR MEDIA; NANOPARTICLES; STABILIZER; PMMA; MECHANISM; SOLVENT; PVA;
D O I：
10.1007/s13233-018-6111-3
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Monodispersed poly(methyl methacrylate) (PMMA) nanoparticles were synthesized by combined dispersion and emulsion polymerization, using aqueous alcohol (methanol/water) as the dispersion medium. The influence of the dispersion medium ratio, stabilizer concentration, and initiator type and concentration on the colloidal stability, particle size, size distribution, and %conversion, was investigated. Submicron PMMA particles with a size of approximately 760 nm with a narrow size distribution, high conversion (91%) and good stability throughout the polymerization were obtained using a 50/50 methanol/water ratio, 1 wt% 2,2'-azobisisobutyronitrile (based on monomer), and 1 wt% polyvinylpyrrolidone (based on medium). With increasing the polarity of the dispersion medium (30/70 methanol/water ratio), the size and conversion of PMMA particles decreased to 345 nm and 72%, respectively.
引用
收藏
页码：819 / 824
页数：6
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