Hybridization of poly(4-vinyl pyridine)-b-polystyrene-b-poly(4-vinyl pyridine) aggregates in dioxane/water solution
文献类型：期刊论文
| 作者 | Zhu, Jintao; Yu, Haizhou; Jiang, Wei |
| 刊名 | EUROPEAN POLYMER JOURNAL
 |
| 出版日期 | 2008-07-01 |
| 卷号 | 44期号:7页码:2275-2283 |
| 关键词 | Block Copolymers Hybrid Selective Solvent Self-assembly Micelles |
| ISSN号 | 0014-3057 |
| DOI | 10.1016/j.eurpolymj.2008.04.041 |
| 英文摘要 | Self-assembly of binary blends of two triblock copolymers of poly(4-vinyl pyridine)-b-polystyrene-b-poly(4-vinyl pyridine), i.e., P4VP(43)-b-PS260-b-P4VP(43) (P1) and P4VP(43)-b-PS366-b-P4VP(43) (P2), in dioxane/water solution was studied. These two triblock copolymers individually tend to form vesicles (P2) and cylindrical micelles (P1) in dilute solution. It was found that copolymer components in the blend, sample preparation method, and annealing time had significant effect on hybridization aggregate morphology. By increasing P1 content in the copolymer blends, fraction of looped and stretched cylinders increased, while fraction of bilayers decreased. Nearly no bilayer was observed when P1 content was above 85 wt%. On the other hand, fraction of cylinders decreased while fraction of bilayers increased with the increase of P2 content in copolymer blends. Lamellar structures were obtained, when P2 content was 60 wt% in the copolymer blends, whereas cylinders were seldom found when P2 content was above 80 wt%. These results indicate that P1 and P2 copolymer molecules cooperatively participate in the formation of cylinders and vesicles. Some exotic structures, such as lamellae with protruding cylinders (ILK), incomplete vesicles with protruding cylinders (VPC), and cylindrical bilayers, have been kinetically trapped. These structures may result from intramicellar fusion processes in cylindrical micelles. The striking structures represent a compromise between bilayer and cylindrical geometries. (c) 2008 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000258869300042 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/65757]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Jiang, Wei |
| 作者单位 | Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Jintao,Yu, Haizhou,Jiang, Wei. Hybridization of poly(4-vinyl pyridine)-b-polystyrene-b-poly(4-vinyl pyridine) aggregates in dioxane/water solution[J]. EUROPEAN POLYMER JOURNAL,2008,44(7):2275-2283. |
| APA | Zhu, Jintao,Yu, Haizhou,&Jiang, Wei.(2008).Hybridization of poly(4-vinyl pyridine)-b-polystyrene-b-poly(4-vinyl pyridine) aggregates in dioxane/water solution.EUROPEAN POLYMER JOURNAL,44(7),2275-2283. |
| MLA | Zhu, Jintao,et al."Hybridization of poly(4-vinyl pyridine)-b-polystyrene-b-poly(4-vinyl pyridine) aggregates in dioxane/water solution".EUROPEAN POLYMER JOURNAL 44.7(2008):2275-2283. |
入库方式： OAI收割
来源：化学研究所
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