Mesoscopic simulation of self-assembly in surfactant oligomers by dissipative particle dynamics
文献类型：期刊论文
| 作者 | Wu, Hao; Xu, Junbo; He, Xianfeng; Zhao, Yuehong; Wen, Hao |
| 刊名 | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
 |
| 出版日期 | 2006-11-15 |
| 卷号 | 290期号:1-3页码:239-246 |
| 关键词 | surfactant self-assembly dissipative particle dynamics mesoscale simulation |
| ISSN号 | 0927-7757 |
| 其他题名 | Colloid Surf. A-Physicochem. Eng. Asp. |
| 中文摘要 | Self-assembling properties of surfactant oligomers in an aqueous medium is simulated by dissipative particle dynamics (DPD). The critical micellar concentration (CMC) of dimeric (oligomerization=2) and trimeric (oligomerization=3) surfactant is much lower than their single-chain counterpart. All surfactants form spherical micelles at the concentration not far above their CMC. The transition from spherical to cylindrical micelles exhibits with increasing surfactant concentration. Lamellar micelles will appear with further increasing the surfactant concentration. For dimeric and trimeric surfactants, cylindrical micelles transform into extremely long "wormlike" or "threadlike" micelles before the transition to lamellar micelles. These results are in qualitative agreement with laboratory experiment. Average aggregation numbers (AN) of micelles increase with a power law of AN similar to c(alpha) when the surfactant concentration c >> CMC. The self-diffusion coefficients will drop with a power law of D similar to c(-alpha) when wormlike micelles are formed. (c) 2006 Elsevier B.V. All rights reserved. |
| 英文摘要 | Self-assembling properties of surfactant oligomers in an aqueous medium is simulated by dissipative particle dynamics (DPD). The critical micellar concentration (CMC) of dimeric (oligomerization=2) and trimeric (oligomerization=3) surfactant is much lower than their single-chain counterpart. All surfactants form spherical micelles at the concentration not far above their CMC. The transition from spherical to cylindrical micelles exhibits with increasing surfactant concentration. Lamellar micelles will appear with further increasing the surfactant concentration. For dimeric and trimeric surfactants, cylindrical micelles transform into extremely long "wormlike" or "threadlike" micelles before the transition to lamellar micelles. These results are in qualitative agreement with laboratory experiment. Average aggregation numbers (AN) of micelles increase with a power law of AN similar to c(alpha) when the surfactant concentration c >> CMC. The self-diffusion coefficients will drop with a power law of D similar to c(-alpha) when wormlike micelles are formed. (c) 2006 Elsevier B.V. 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] | DODECYL-SULFATE MICELLE ; GEMINI SURFACTANTS ; DIMERIC SURFACTANTS ; AQUEOUS-SOLUTION ; MORPHOLOGY ; INTERIOR ; WATER |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000242425500033 |
| 公开日期 | 2013-10-24 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/4014]  |
| 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, Multiphase React Lab, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Hao,Xu, Junbo,He, Xianfeng,et al. Mesoscopic simulation of self-assembly in surfactant oligomers by dissipative particle dynamics[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2006,290(1-3):239-246. |
| APA | Wu, Hao,Xu, Junbo,He, Xianfeng,Zhao, Yuehong,&Wen, Hao.(2006).Mesoscopic simulation of self-assembly in surfactant oligomers by dissipative particle dynamics.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,290(1-3),239-246. |
| MLA | Wu, Hao,et al."Mesoscopic simulation of self-assembly in surfactant oligomers by dissipative particle dynamics".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 290.1-3(2006):239-246. |
入库方式： OAI收割
来源：过程工程研究所
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