Influence of mixed common solvent on the co-assembled morphology of ps-b-peo and cds quantum dots
文献类型：期刊论文
| 作者 | Liu, Wei1,2; Zhang, Hai-shan3; Ji, Xiang-ling1 |
| 刊名 | Chinese journal of polymer science
 |
| 出版日期 | 2016-09-01 |
| 卷号 | 34期号:9页码:1079-1090 |
| 关键词 | Co-assembly Mixed common solvent Ps-b-peo Solvent composition |
| ISSN号 | 0256-7679 |
| DOI | 10.1007/s10118-016-1824-2 |
| 通讯作者 | Zhang, hai-shan(hszhang@jlu.edu.cn) ; Ji, xiang-ling(xlji@ciac.ac.cn) |
| 英文摘要 | The hybrid structures of polystyrene-b-poly(ethylene oxide) (ps-b-peo) block copolymer and inorganic nanoparticles with good stability and biocompatibility have potential applications in drug delivery and bioimaging. spherical co-assemblies of ps120-b-peo318 and oleylamine-capped cds quantum dots (qds) are produced successfully in this work by adding water to a mixed common solvent, such as n,n-dimethylmethanamide (dmf)/chloroform, dmf/tetrahydrofuran (thf), or dmf/toluene. the energy dispersive x-ray (edx) spectrum indicates that qds are located at the interface between the core and shell of the spherical co-assemblies. the co-assembly process during water addition is traced by transmission electron microscopy (tem) and turbidity measurement. spherical co-assemblies are formed through budding from bilayers of the block copolymer and qds. the morphology of the co-assemblies is related to the miscibility of the qd-dispersing solvents with water and the morphology changes from a spherical to a vesicle-like structure with dmf/toluene. increasing thf content in the mixed solvent causes morphological transitions from spherical co-assemblies to multi-branched cylinders and micelles where qds are located in the central core. increasing chloroform content yields vesicle-like structures with protruding rods on the surface. the mechanism of the morphological transitions is also discussed in detail. |
| WOS关键词 | AMPHIPHILIC BLOCK-COPOLYMERS ; DIBLOCK COPOLYMERS ; INTERFACIAL INSTABILITIES ; DILUTE-SOLUTION ; MICELLES ; NANOPARTICLES ; TRANSITIONS ; NANOCRYSTALS ; ACID) ; WATER |
| WOS研究方向 | Polymer Science |
| WOS类目 | Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000380712100004 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2374449 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhang, Hai-shan; Ji, Xiang-ling |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Jilin Univ, China Japan Union Hosp, Dept Colorectal & Anal Surg, Changchun 130033, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Wei,Zhang, Hai-shan,Ji, Xiang-ling. Influence of mixed common solvent on the co-assembled morphology of ps-b-peo and cds quantum dots[J]. Chinese journal of polymer science,2016,34(9):1079-1090. |
| APA | Liu, Wei,Zhang, Hai-shan,&Ji, Xiang-ling.(2016).Influence of mixed common solvent on the co-assembled morphology of ps-b-peo and cds quantum dots.Chinese journal of polymer science,34(9),1079-1090. |
| MLA | Liu, Wei,et al."Influence of mixed common solvent on the co-assembled morphology of ps-b-peo and cds quantum dots".Chinese journal of polymer science 34.9(2016):1079-1090. |
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来源：中国科学院大学
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