Supramolecular ABA triblock copolymer with polyrotaxane as B block and its hierarchical self-assembly
文献类型：期刊论文
| 作者 | Ren, Lixia1; Ke, Fuyou2; Chen, Yongming1; Liang, Dehai2; Huang, Jin3 |
| 刊名 | MACROMOLECULES
 |
| 出版日期 | 2008-07-22 |
| 卷号 | 41期号:14页码:5295-5300 |
| ISSN号 | 0024-9297 |
| DOI | 10.1021/ma800632m |
| 英文摘要 | A series of novel well-defined supramolecular ABA triblock copolymers of polyrotaxane are synthesized via atom transfer radical polymerization (ATRP) of 2-(dimethylamino)ethyl methacrylate (DMA) initiated by a polypseudorotaxane initiator of alpha-cyclodextrins (alpha-CDs) and PEG. The molecular structure of the ABA triblock copolymer with a polyrotaxane as B block, poly(2-(dimethylamino)ethyl methacrylate)-b-PEG[included by alpha-CDs]-b-poly(2-(dimethylamino)ethyl methacrylate) (DMA-b-PEGCD-b-DMA), was confirmed by two-dimensional rotating frame Overhauser effect spectroscopy (2D ROESY) and X-ray diffraction (XRD) analyses. Self-assembly behaviors of the copolymers in water solution were studied by dynamic light scattering (DLS), static light scattering (SLS), and transmission electron microscopy (TEM). Different from the model triblock copolymer without alpha-CDs and the polypseudorotaxanes composed of homo-PEG and alpha-CDs, the supramolecular triblock copolymers in water self-assembled into spheres with an amorphous core. Furthermore, the block copolymers at an acidic aqueous solution where the flanking chains were protonated generated the particles with a core of hexagonally packed polyrotaxanes. It is interesting to notice that the particles further aggregated into large disks induced by the solvent evaporation. |
| 语种 | 英语 |
| WOS记录号 | WOS:000257665900030 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/65487]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Chen, Yongming |
| 作者单位 | 1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Div Polymer Sci & Mat, Beijing 100190, Peoples R China 2.Peking Univ, Coll Chem & Mol Engn, Beijing 100190, Peoples R China 3.Wuhan Univ Technol, Coll Chem Engn, Wuhan 430070, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ren, Lixia,Ke, Fuyou,Chen, Yongming,et al. Supramolecular ABA triblock copolymer with polyrotaxane as B block and its hierarchical self-assembly[J]. MACROMOLECULES,2008,41(14):5295-5300. |
| APA | Ren, Lixia,Ke, Fuyou,Chen, Yongming,Liang, Dehai,&Huang, Jin.(2008).Supramolecular ABA triblock copolymer with polyrotaxane as B block and its hierarchical self-assembly.MACROMOLECULES,41(14),5295-5300. |
| MLA | Ren, Lixia,et al."Supramolecular ABA triblock copolymer with polyrotaxane as B block and its hierarchical self-assembly".MACROMOLECULES 41.14(2008):5295-5300. |
入库方式： OAI收割
来源：化学研究所
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