Solvent-induced crystallization of spherical micelles formed by copolymer blends
文献类型：期刊论文
| 作者 | Huang, Weihuan; Luo, Chunxia; Li, Binyao; Han, Yanchun |
| 刊名 | MACROMOLECULES
 |
| 出版日期 | 2006-11-14 |
| 卷号 | 39期号:23页码:8075-8082 |
| ISSN号 | 0024-9297 |
| DOI | 10.1021/ma060799k |
| 英文摘要 | We have followed the morphological evolution and crystallization process of spherical micelles formed by the mixture of polystyrene-b-poly(acrylic acid) (PS-b-PAA) and polystyrene-b-poly(2-vinylpyridine)b-poly(ethylene oxide) (PS-b-P2VP-b-PEO) (the core of the spherical micelles was made of P2VP and PAA blocks through hydrogen bonding in neutral solvent N,N-dimethylformamide, DMF) via DMF vapor treatment. Different phenomena, such as rupture of the film, formation of cylinder aggregates and regular square lamellae, were observed when the micelle film was treated in DMF for different times. At the early stage of annealing in DMF vapor, the micelle film became unstable and ruptured. Cylinder aggregates, within which the PEO blocks achieved the association and primary chain folding, formed as the mesophases before the nucleation of the PEO single crystals at this stage. Further treatment in DMF vapor resulted in the nucleation of the PEO blocks at the corners of quasi-square lamellae. Then a quite regular "sandwich" lamellar structure, constructed by a PEO single-crystal layer covered by two tethered layers of other amorphous blocks on the top and bottom crystal basal surfaces, formed when the film of micelles was annealed in DMF vapor for sufficient times. It is found that the unique distribution of the crystallizable blocks in the film and the phase separation between the PS and PEO blocks in the corona of the initial micelles play an important role in the solvent-induced crystallization. |
| 语种 | 英语 |
| WOS记录号 | WOS:000241813200041 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/58757]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Han, Yanchun |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Weihuan,Luo, Chunxia,Li, Binyao,et al. Solvent-induced crystallization of spherical micelles formed by copolymer blends[J]. MACROMOLECULES,2006,39(23):8075-8082. |
| APA | Huang, Weihuan,Luo, Chunxia,Li, Binyao,&Han, Yanchun.(2006).Solvent-induced crystallization of spherical micelles formed by copolymer blends.MACROMOLECULES,39(23),8075-8082. |
| MLA | Huang, Weihuan,et al."Solvent-induced crystallization of spherical micelles formed by copolymer blends".MACROMOLECULES 39.23(2006):8075-8082. |
入库方式： OAI收割
来源：化学研究所
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