Smectic polymer micellar aggregates with temperature-controlled morphologies
文献类型：期刊论文
| 作者 | Jia L(贾林) ; Daniel Levy ; Dominique Durand ; Marianne Imperor-Clerc ; Cao AM(曹阿民) ; Li MH(李敏慧) |
| 刊名 | Soft Matter
 |
| 出版日期 | 2011 |
| 卷号 | 7期号:16页码:7395-7403 |
| ISSN号 | 1744-683X |
| 其他题名 | 碟状聚合物微囊泡聚集体形貌的温度调控 |
| 通讯作者 | 曹阿民 ; 李敏慧 |
| 英文摘要 | The morphological control of polymer micellar aggregates is a very important issue in applications such as drug delivery and material science. We report the temperature-controlled formation of nanotubes, nanofibers, ellipsoidal and faceted vesicles, and spherical aggregates by nanoprecipitation of amphiphilic diblock copolymers in dioxane/water mixture. The copolymers used are composed of a cholesterol-based smectic liquid crystal core-forming block and a PEG hydrophilic block. The morphology of the micellar self-assemblies was studied by transmission electron microscopy (TEM), cryo-electron microscopy (cryo-TEM) and atomic force microscopy (AFM). In all these aggregates smectic organization is clearly present in the hydrophobic cores. We propose a smectic "liquid crystallization"-driven self-assembly process for the formation of nanofibers and nanotubes on the basis of small angle X-ray scattering (SAXS) studies during the nanoprecipitation. The temperature dependence of the morphology (from T = 5-55 degrees C) is explained by the free energy consideration. The different aggregates finally dispersed in water after the removal of dioxane are thermally stable at temperature <= 55 degrees C and can be preserved for years at room temperature without structural change. |
| 学科主题 | 高分子化学 |
| 收录类别 | SCI |
| 原文出处 | http://dx.doi.org/10.1039/c1sm05636k |
| 语种 | 英语 |
| WOS记录号 | WOS:000293412900035 |
| 公开日期 | 2013-03-07 |
| 源URL | [http://202.127.28.38/handle/331003/22968]  |
| 专题 | 上海有机化学研究所_高分子材料研究室 |
| 推荐引用方式 GB/T 7714 | Jia L,Daniel Levy,Dominique Durand,et al. Smectic polymer micellar aggregates with temperature-controlled morphologies[J]. Soft Matter,2011,7(16):7395-7403. |
| APA | 贾林,Daniel Levy,Dominique Durand,Marianne Imperor-Clerc,曹阿民,&李敏慧.(2011).Smectic polymer micellar aggregates with temperature-controlled morphologies.Soft Matter,7(16),7395-7403. |
| MLA | 贾林,et al."Smectic polymer micellar aggregates with temperature-controlled morphologies".Soft Matter 7.16(2011):7395-7403. |
入库方式： OAI收割
来源：上海有机化学研究所
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