Preparation of uniform hollow polystyrene particles with large voids by a glass-membrane emulsification technique and a subsequent suspension polymerization
文献类型：期刊论文
| 作者 | Ma, GH; Chen, AY; Su, ZG; Omi, S |
| 刊名 | JOURNAL OF APPLIED POLYMER SCIENCE
 |
| 出版日期 | 2003-01-10 |
| 卷号 | 87期号:2页码:244-251 |
| 关键词 | polystyrene crosslinking voids particle size distribution phase separation |
| ISSN号 | 0021-8995 |
| 其他题名 | J. Appl. Polym. Sci. |
| 中文摘要 | Hollow polymer particles with large voids were prepared with styrene (St) as the main component and in the presence of a small amount of N,N'-dimethylaminoethyl methacrylate (DMAEMA) via a glass-membrane emulsification technique and a subsequent suspension polymerization. A mixture of the monomer, hexadecane (HD), and N,N'-azobis(2,4-dimethylvaleronitrile) as an initiator was used as a dispersed phase (oil phase). By the careful pushing of the dispersed phase through the pores of the glass membrane into the aqueous phase, an emulsion of fairly monodisperse monomer droplets was formed. Then, the polymerization was performed by temperature being elevated to 70degreesC. The aqueous phase (continuous phase) contained poly(N-vinyl pyrrolidone) as a stabilizer, sodium lauryl sulfate as a surfactant, Na2SO4 as an electrolyte, and sodium nitrite (NaNO2) as a water-soluble inhibitor. Results related to the effects of the HD content, DMAEMA, and the composition of the comonomer, including the crosslinker and flexible segment, on the features of the hollow particles were investigated. When the content of DMAEMA was higher than 1.0 wt% based on the total monomer, small, secondary particles were generated in the aqueous phase, but the generation was effectively prevented when DMAEMA was limited to 0.5 wt%. Hollow particles, with an average diameter of around 7 gm, were obtained with an St-DMAEMA system. The void size of the hollow particles was controlled by the HD content. When, the HD content was lower (<25 wt% based on the oil phase), unbroken hollow particles were easily obtained. However, they tended to break into halves after drying when the HD content was increased to 50 wt%. A soft segment, lauryl acrylate, and a crosslinker, ethylene glycol dimethacrylate, were added to overcome this problem. (C) 2002 Wiley Periodicals, Inc. |
| 英文摘要 | Hollow polymer particles with large voids were prepared with styrene (St) as the main component and in the presence of a small amount of N,N'-dimethylaminoethyl methacrylate (DMAEMA) via a glass-membrane emulsification technique and a subsequent suspension polymerization. A mixture of the monomer, hexadecane (HD), and N,N'-azobis(2,4-dimethylvaleronitrile) as an initiator was used as a dispersed phase (oil phase). By the careful pushing of the dispersed phase through the pores of the glass membrane into the aqueous phase, an emulsion of fairly monodisperse monomer droplets was formed. Then, the polymerization was performed by temperature being elevated to 70degreesC. The aqueous phase (continuous phase) contained poly(N-vinyl pyrrolidone) as a stabilizer, sodium lauryl sulfate as a surfactant, Na2SO4 as an electrolyte, and sodium nitrite (NaNO2) as a water-soluble inhibitor. Results related to the effects of the HD content, DMAEMA, and the composition of the comonomer, including the crosslinker and flexible segment, on the features of the hollow particles were investigated. When the content of DMAEMA was higher than 1.0 wt% based on the total monomer, small, secondary particles were generated in the aqueous phase, but the generation was effectively prevented when DMAEMA was limited to 0.5 wt%. Hollow particles, with an average diameter of around 7 gm, were obtained with an St-DMAEMA system. The void size of the hollow particles was controlled by the HD content. When, the HD content was lower (<25 wt% based on the oil phase), unbroken hollow particles were easily obtained. However, they tended to break into halves after drying when the HD content was increased to 50 wt%. A soft segment, lauryl acrylate, and a crosslinker, ethylene glycol dimethacrylate, were added to overcome this problem. (C) 2002 Wiley Periodicals, Inc. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Polymer Science |
| 研究领域[WOS] | Polymer Science |
| 关键词[WOS] | METHACRYLATE) COMPOSITE MICROSPHERES ; SPG ; MORPHOLOGY |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000179267600015 |
| 公开日期 | 2013-11-08 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/5337]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Chem Engn, Beijing 100080, Peoples R China 2.Tokyo Univ Agr & Technol, Grad Sch Bio Applicat & Syst Engn, Koganei, Tokyo 1848588, Japan |
| 推荐引用方式 GB/T 7714 | Ma, GH,Chen, AY,Su, ZG,et al. Preparation of uniform hollow polystyrene particles with large voids by a glass-membrane emulsification technique and a subsequent suspension polymerization[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2003,87(2):244-251. |
| APA | Ma, GH,Chen, AY,Su, ZG,&Omi, S.(2003).Preparation of uniform hollow polystyrene particles with large voids by a glass-membrane emulsification technique and a subsequent suspension polymerization.JOURNAL OF APPLIED POLYMER SCIENCE,87(2),244-251. |
| MLA | Ma, GH,et al."Preparation of uniform hollow polystyrene particles with large voids by a glass-membrane emulsification technique and a subsequent suspension polymerization".JOURNAL OF APPLIED POLYMER SCIENCE 87.2(2003):244-251. |
入库方式： OAI收割
来源：过程工程研究所
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