Solvent-Induced Association and Micellization of Rod-Coil Diblock Copolymer
文献类型：期刊论文
| 作者 | Lin, Weiran; Zhang, Jie; Wan, Xinhua; Liang, Dehai; Zhou, Qifeng |
| 刊名 | MACROMOLECULES
 |
| 出版日期 | 2009-06-23 |
| 卷号 | 42期号:12页码:4090-4098 |
| ISSN号 | 0024-9297 |
| DOI | 10.1021/ma9004988 |
| 英文摘要 | The solvent-induced association and micellization processes of amphiphilic rod-coil diblock copolymers, poly(ethylene oxide)-b-poly{(+)-2,5-bis[4'-((S)-2-methylbutoxy)phenyl]styrene} (PEO(104)-b-PMBPS(n), with n being 17, 30, 45, 53, and 106, respectively), were studied in situ by laser light scattering. In dioxane, a selective solvent for PMBPS block, the copolymer preserved the single-chain conformation. With the addition of water, a selective solvent for PEO block, the block copolymer underwent two difference processes: the association governed by PEO and the micellization governed by PMBPS. Because PMBPS would be dominant at elevated water content, three occurrences, the formation of associate, the formation of micelles, and the breakdown of associate, were observed in sequence with increasing water content. However, under the conditions where the rate of disassociation was much slower than that of micellization, the structure of the associate was "frozen" by the rod blocks, and mixed structures of associate and micelle were obtained. The associate formed at elevated water content was controlled by kinetics. Its formation was mainly determined by the PEO/PM BPS block ratio and the water addition rate. |
| 语种 | 英语 |
| WOS记录号 | WOS:000267048200041 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/66977]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wan, Xinhua |
| 作者单位 | Peking Univ, Beijing Natl Lab Mol Sci, Key Lab Polymer Chem & Phys, Minist Educ,Coll Chem & Mol Engn, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lin, Weiran,Zhang, Jie,Wan, Xinhua,et al. Solvent-Induced Association and Micellization of Rod-Coil Diblock Copolymer[J]. MACROMOLECULES,2009,42(12):4090-4098. |
| APA | Lin, Weiran,Zhang, Jie,Wan, Xinhua,Liang, Dehai,&Zhou, Qifeng.(2009).Solvent-Induced Association and Micellization of Rod-Coil Diblock Copolymer.MACROMOLECULES,42(12),4090-4098. |
| MLA | Lin, Weiran,et al."Solvent-Induced Association and Micellization of Rod-Coil Diblock Copolymer".MACROMOLECULES 42.12(2009):4090-4098. |
入库方式： OAI收割
来源：化学研究所
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