The dynamic interfacial adsorption and demulsification behaviors of novel amphiphilic dendrimers
文献类型：期刊论文
| 作者 | Zhang, Pei1; Wang, Hui1; Liu, Xia1; Shi, Xuefeng1; Zhang, Jian2; Yang, Guang2; Sun, Keji3; Wang, Jinben1 |
| 刊名 | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
 |
| 出版日期 | 2014-02-20 |
| 卷号 | 443页码:473-480 |
| 关键词 | Amphiphilic Dendrimers Adsorption Behaviors Dilational Viscoelasticity Demulsification |
| ISSN号 | 0927-7757 |
| DOI | 10.1016/j.colsurfa.2013.12.014 |
| 英文摘要 | The dynamic surface tension and dilational viscoelasticity properties of amphiphilic polyamidoamine (PAMAM) dendrimers were investigated to probe the hydrophobic chain effect on the interfacial properties and the demulsification behaviors. The values of dynamic parameters n and t* representing diffusion speed of the molecules obtained according to the Rosen equation decreased with the increasing of bulk concentration. Taking the hydrophobic effect into consideration, the t* values decreased and n values increased with the increase of alkyl chain length, suggesting easier adsorption and faster diffusion for longer hydrophobic chain which was opposite to the tendency of traditional surfactants. Further dilational viscoelasticity studies demonstrated that the properties referring to adsorption and exchange-diffusion were probably affected by the aggregates conformation at the interface. Subsequently, from the demulsification experiments a conclusion can be drawn that the amphiphilic dendrimers with branched dendritic structure possesses superior properties of breaking W/O crude oil emulsions, showing a certain correlation to the dilational viscoelasticity properties. (C) 2013 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000342501300065 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/53199]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang, Jinben |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Key Lab Colloid Interface & Chem Thermodynam, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 2.State Key Lab Offshore Oil Exploitat, Beijing 100027, Peoples R China 3.SINOPEC, Shengli Oilfield Branch Co, Oil Prod Technol Res Inst, Dongying 257000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Pei,Wang, Hui,Liu, Xia,et al. The dynamic interfacial adsorption and demulsification behaviors of novel amphiphilic dendrimers[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2014,443:473-480. |
| APA | Zhang, Pei.,Wang, Hui.,Liu, Xia.,Shi, Xuefeng.,Zhang, Jian.,...&Wang, Jinben.(2014).The dynamic interfacial adsorption and demulsification behaviors of novel amphiphilic dendrimers.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,443,473-480. |
| MLA | Zhang, Pei,et al."The dynamic interfacial adsorption and demulsification behaviors of novel amphiphilic dendrimers".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 443(2014):473-480. |
入库方式： OAI收割
来源：化学研究所
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