The "crew-cut" aggregates of polystyrene-b-poly(ethylene oxide)-b-polystyrene triblock copolymers in aqueous media
文献类型：期刊论文
| 作者 | Yuan, JJ; Li, YS; Li, XQ; Cheng, SY; Jiang, L; Feng, LX; Fan, ZQ |
| 刊名 | EUROPEAN POLYMER JOURNAL
 |
| 出版日期 | 2003-04-01 |
| 卷号 | 39期号:4页码:767-776 |
| 关键词 | Block Copolymers Crew-cut Chain Architectures Self-assembly Vesicles Morphology |
| ISSN号 | 0014-3057 |
| 英文摘要 | In this paper, the "crew-cut" aggregates in aqueous media formed by polystyrene (PS)-b-poly(ethylene oxide) (PEO)-b-PS triblock copolymers were presented. The polymers used are PS43-b-PEO45-b-PS43, and PS40-b-PEO136-b-PS40 triblock copolymers (the subscripts are the degree of polymerization). The several factors affecting the aggregation behaviors have been investigated. The multiple morphologies, including vesicles, large compound vesicles, large compound micelles (LCMs), and so on, were obtained by altering the solvents, solvent composition, annealing time, and copolymer composition. The self-assembled aggregates were characterized with a combination of conventional transmission electron microscope and atomic force microscope techniques. It was found that vesicles were formed when making colloids from the PS43-b-PEO45-b-PS43 solutions of THF, dioxane, THF-water, and dioxane-water, while LCMs were obtained in the case of preparing aggregates from the copolymer solutions of DMF and DMF-water. In addition, the larger compound vesicles and a few aggregates with the complex structures were observed using neat dioxane and THF as initial solvents, respectively. Also, prolonging the annealing time was favorable to the formation of vesicles. Furthermore, some unclosed vesicles the bending of lamellae. (C) 2002 Elsevier Science Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000181385300015 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/80071]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Cheng, SY |
| 作者单位 | 1.Hubei Univ, Coll Chem & Mat Sci, Wuhan 430062, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China 3.Zhejiang Univ, Inst Polymer Sci, Hangzhou 310027, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, JJ,Li, YS,Li, XQ,et al. The "crew-cut" aggregates of polystyrene-b-poly(ethylene oxide)-b-polystyrene triblock copolymers in aqueous media[J]. EUROPEAN POLYMER JOURNAL,2003,39(4):767-776. |
| APA | Yuan, JJ.,Li, YS.,Li, XQ.,Cheng, SY.,Jiang, L.,...&Fan, ZQ.(2003).The "crew-cut" aggregates of polystyrene-b-poly(ethylene oxide)-b-polystyrene triblock copolymers in aqueous media.EUROPEAN POLYMER JOURNAL,39(4),767-776. |
| MLA | Yuan, JJ,et al."The "crew-cut" aggregates of polystyrene-b-poly(ethylene oxide)-b-polystyrene triblock copolymers in aqueous media".EUROPEAN POLYMER JOURNAL 39.4(2003):767-776. |
入库方式： OAI收割
来源：化学研究所
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