Porogen effects in synthesis of uniform micrometer-sized poly(divinylbenzene) microspheres with high surface areas
文献类型：期刊论文
| 作者 | Hao, Dong-xia1,2; Gong, Fang-ling1; Wei, Wei1; Hu, Guo-hua3,4; Ma, Guang-hui1; Su, Zhi-guo1 |
| 刊名 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
 |
| 出版日期 | 2008-07-01 |
| 卷号 | 323期号:1页码:52-59 |
| 关键词 | poly(divinylbenzene) uniform sized high specific area membrane emulsification post-crosslinking |
| ISSN号 | 0021-9797 |
| 其他题名 | J. Colloid Interface Sci. |
| 中文摘要 | A new method of synthesizing uniform poly(divinylbenzene) (polyDVB) microspheres with high specific surface areas was designed by combining Shirasu porous glass (SPG) membrane emulsification, suspension polymerization, and post-crosslinking techniques. It was shown that the physicochemical properties of porogens have a great influence on the size distribution and porous features of microspheres. The low aqueous solubility of porogen facilitated preparation of uniform emulsions and microspheres, and high aqueous solubility led to polydispersed emulsions and poor microsphere yields. Such aqueous solubility effects can be tailored by adding a low molecular weight polystyrene (LPST) as costabilizer in porogen, thus improving the uniformity of microspheres. Moreover, different affinities of porogens for copolymers demonstrate various contributions to specific surface areas of microspheres in suspension polymerization especially post-crosslinking. Solvating porogen requires a much higher addition than nonsolvating porogen to obtain equal specific surface areas in polymerization, but has more potential to enhance the specific surface area in post-crosslinking. Two kinds of uniform microspheres were obtained with high specific surface areas, up to 706.6 m(2)/g by heptane and 937.5 m(2)/g by toluene. (C) 2008 Elsevier Inc. All rights reserved. |
| 英文摘要 | A new method of synthesizing uniform poly(divinylbenzene) (polyDVB) microspheres with high specific surface areas was designed by combining Shirasu porous glass (SPG) membrane emulsification, suspension polymerization, and post-crosslinking techniques. It was shown that the physicochemical properties of porogens have a great influence on the size distribution and porous features of microspheres. The low aqueous solubility of porogen facilitated preparation of uniform emulsions and microspheres, and high aqueous solubility led to polydispersed emulsions and poor microsphere yields. Such aqueous solubility effects can be tailored by adding a low molecular weight polystyrene (LPST) as costabilizer in porogen, thus improving the uniformity of microspheres. Moreover, different affinities of porogens for copolymers demonstrate various contributions to specific surface areas of microspheres in suspension polymerization especially post-crosslinking. Solvating porogen requires a much higher addition than nonsolvating porogen to obtain equal specific surface areas in polymerization, but has more potential to enhance the specific surface area in post-crosslinking. Two kinds of uniform microspheres were obtained with high specific surface areas, up to 706.6 m(2)/g by heptane and 937.5 m(2)/g by toluene. (C) 2008 Elsevier Inc. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Physical |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | MEMBRANE EMULSIFICATION TECHNIQUE ; DIVINYLBENZENE COPOLYMERS ; POROUS STRUCTURE ; HYPERCROSSLINKED POLYSTYRENE ; CHROMATOGRAPHIC PROPERTIES ; COMPOSITE MICROSPHERES ; POLYMERIC MICROSPHERES ; LIQUID-CHROMATOGRAPHY ; STATIONARY PHASES ; CROSS-LINKING |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000256646600007 |
| 公开日期 | 2013-10-08 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/2761]  |
| 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.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.CNRS ENSIC INPL, Lab Chem Engn Sci, F-54001 Nancy, France 4.Maison Univ, Inst Univ France, F-75005 Paris, France |
| 推荐引用方式 GB/T 7714 | Hao, Dong-xia,Gong, Fang-ling,Wei, Wei,et al. Porogen effects in synthesis of uniform micrometer-sized poly(divinylbenzene) microspheres with high surface areas[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2008,323(1):52-59. |
| APA | Hao, Dong-xia,Gong, Fang-ling,Wei, Wei,Hu, Guo-hua,Ma, Guang-hui,&Su, Zhi-guo.(2008).Porogen effects in synthesis of uniform micrometer-sized poly(divinylbenzene) microspheres with high surface areas.JOURNAL OF COLLOID AND INTERFACE SCIENCE,323(1),52-59. |
| MLA | Hao, Dong-xia,et al."Porogen effects in synthesis of uniform micrometer-sized poly(divinylbenzene) microspheres with high surface areas".JOURNAL OF COLLOID AND INTERFACE SCIENCE 323.1(2008):52-59. |
入库方式： OAI收割
来源：过程工程研究所
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