Preparation of uniform-sized polystyrene-polyacrylamide composite microspheres from a W/O/W emulsion by membrane emulsification technique and subsequent suspension polymerization
文献类型：期刊论文
| 作者 | Ma, GH; Sone, H; Omi, S |
| 刊名 | MACROMOLECULES
 |
| 出版日期 | 2004-04-20 |
| 卷号 | 37期号:8页码:2954-2964 |
| 关键词 | 2-hydroxyethyl methacrylate glass membrane particles dispersions mechanism oligomer kinetics |
| ISSN号 | 0024-9297 |
| 其他题名 | Macromolecules |
| 中文摘要 | Uniform-sized polystyrene/polyacrylamide (PST-PAAm) composite microspheres were prepared from a water/oil/water (W/O/W) emulsion by using a glass membrane emulsification technique. An AAm aqueous solution was emulsified into an oil phase containing ST initiator, Span 85, and PST by ultrasonification to obtain W/O primary emulsion. Then, the W/O emulsion was pressed through the uniform pores (5.25 mum) of a SPG (Shirasu porous glass) membrane into an outer aqueous solution to form uniform-sized W/O/W emulsion. PST was added to increase the viscosity of oil phase, retarding the phase separation between inner water phase and oil phase during the membrane emulsification process. After the W/O/W emulsion was polymerized, the uniform-sized composite particles around 20 mum were obtained. It was found that the spherical PAAm microdomains were distributed inside and on the surface of a composite particle; the number of PAAm domains on the surface was controllable by varying cross-linking density of the PST phase. |
| 英文摘要 | Uniform-sized polystyrene/polyacrylamide (PST-PAAm) composite microspheres were prepared from a water/oil/water (W/O/W) emulsion by using a glass membrane emulsification technique. An AAm aqueous solution was emulsified into an oil phase containing ST initiator, Span 85, and PST by ultrasonification to obtain W/O primary emulsion. Then, the W/O emulsion was pressed through the uniform pores (5.25 mum) of a SPG (Shirasu porous glass) membrane into an outer aqueous solution to form uniform-sized W/O/W emulsion. PST was added to increase the viscosity of oil phase, retarding the phase separation between inner water phase and oil phase during the membrane emulsification process. After the W/O/W emulsion was polymerized, the uniform-sized composite particles around 20 mum were obtained. It was found that the spherical PAAm microdomains were distributed inside and on the surface of a composite particle; the number of PAAm domains on the surface was controllable by varying cross-linking density of the PST phase. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Polymer Science |
| 研究领域[WOS] | Polymer Science |
| 关键词[WOS] | 2-HYDROXYETHYL METHACRYLATE ; GLASS MEMBRANE ; PARTICLES ; DISPERSIONS ; MECHANISM ; OLIGOMER ; KINETICS |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000220898600041 |
| 公开日期 | 2013-11-05 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/4999]  |
| 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, State Key Lab Biochem Engn, Beijing 100080, Peoples R China 2.Tokyo Univ Agr & Technol, Grad Sch Bioapplicat & Syst Engn, Koganei, Tokyo 1848588, Japan |
| 推荐引用方式 GB/T 7714 | Ma, GH,Sone, H,Omi, S. Preparation of uniform-sized polystyrene-polyacrylamide composite microspheres from a W/O/W emulsion by membrane emulsification technique and subsequent suspension polymerization[J]. MACROMOLECULES,2004,37(8):2954-2964. |
| APA | Ma, GH,Sone, H,&Omi, S.(2004).Preparation of uniform-sized polystyrene-polyacrylamide composite microspheres from a W/O/W emulsion by membrane emulsification technique and subsequent suspension polymerization.MACROMOLECULES,37(8),2954-2964. |
| MLA | Ma, GH,et al."Preparation of uniform-sized polystyrene-polyacrylamide composite microspheres from a W/O/W emulsion by membrane emulsification technique and subsequent suspension polymerization".MACROMOLECULES 37.8(2004):2954-2964. |
入库方式： OAI收割
来源：过程工程研究所
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