Interaction between zero-charged catanionic vesicles and PEO-PPO-PEO triblock copolymers
文献类型：期刊论文
| 作者 | Wei X(魏鑫)1; Wang JH(王靖慧)1; Li MZ(李明智)1; Hao JC(郝京诚)1; Li HG(李洪光)2
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| 刊名 | Colloid and Polymer Science
 |
| 出版日期 | 2014 |
| 卷号 | 292期号:11页码:2795-2802 |
| 关键词 | Vesicles PEO-PPO-PEO Rheological properties Aggregate transition Viscoelasticity |
| ISSN号 | 0303-402X |
| 通讯作者 | 李洪光 |
| 英文摘要 | We investigate the interaction between zerocharged catanionic vesicles and PEO–PPO–PEO (poly(ethylene oxide–poly(propylene oxide)–poly(ethylene oxide)) triblock copolymers. The 25-mg mL−1 aqueous solution of tetradecyltrimethylammonium laurate (TTAL) contains closely packed uni- and multi-lamellar vesicles and shows viscoelastic properties with a dominant elastic modulus (G′) over a viscous modulus (G″). When a small amount of F127 ((EO)97(PO)69(EO)97) or F68 ((EO)76(PO)29(EO)76) was added, an improvement of the viscoelasticity was observed at suitable polymer concentrations. Freeze–fracture transmission electron microscopy (FF-TEM) observations on an F68- containing system revealed interesting aggregate transition from vesicles to flexible tubules and back to vesicles. The improvement of the viscoelasticity of the vesicular solution containing F68 or F127 can be explained by the formation of tubule and polymer–vesicle associates, while no such phenomenon was noticed for P123 ((EO)19(PO)69(EO)19) which has the highest propylene oxide (PO) content and the strongest ability to self-associate in aqueous solution. In all the cases, vesicles will be destroyed and phase separation can be observed at high polymer contents (>5-mg mL−1). |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | the National Natural Science Foundation of China (21033005);the Hundred Talents Program of the Chinese Academy of Sciences (Y20245YBR1) |
| 语种 | 英语 |
| WOS记录号 | WOS:000343910100005 |
| 公开日期 | 2014-11-06 |
| 源URL | [http://210.77.64.217/handle/362003/6622]  |
| 专题 | 兰州化学物理研究所_清洁能源化学与材料实验室 |
| 作者单位 | 1.Shandong Univ, Key Lab Colloid & Interface Chem, Minist Educ, Jinan 250100, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, Lab Clean Energy Chem & Mat, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei X,Wang JH,Li MZ,et al. Interaction between zero-charged catanionic vesicles and PEO-PPO-PEO triblock copolymers[J]. Colloid and Polymer Science,2014,292(11):2795-2802. |
| APA | Wei X,Wang JH,Li MZ,Hao JC,&Li HG.(2014).Interaction between zero-charged catanionic vesicles and PEO-PPO-PEO triblock copolymers.Colloid and Polymer Science,292(11),2795-2802. |
| MLA | Wei X,et al."Interaction between zero-charged catanionic vesicles and PEO-PPO-PEO triblock copolymers".Colloid and Polymer Science 292.11(2014):2795-2802. |
入库方式： OAI收割
来源：兰州化学物理研究所
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