Synthesis and Solution Self-assembly of Amphiphilic Molecular Bottlebrushes
文献类型：期刊论文
| 作者 | Long, Mei-lin1; Zhang, Ke1; Chen, Yong-ming1,2; Zhu, Wen1 |
| 刊名 | ACTA POLYMERICA SINICA
 |
| 出版日期 | 2016-09-20 |
| 期号 | 9页码:1238-1246 |
| 关键词 | Amphiphilic Cylindrical molecular bottlebrush Morphologies transformation Self-assembly Vesicles |
| 英文摘要 | Well-defined AbBA triblock bottlebrushes with the poly(N,N'-dimethyl acrylamide) (PAm) as A block and polyacrylate densely grafted with polystyrene (PS) as B block were prepared by the combination of controlled radical polymerization and copper-catalyzed azide-alkyne cycloaddition (CuAAC) reaction. The composition and structure of the bottlebrushes were confirmed by hydrogen nuclear magnetic resonance ((HNMR)-H-1) and gel permeation chromatograph (GPC), which showed a high side-chain grafting density of about 100%. The self-assembly behavior of the bottlebrushes with different PAm contents was investigated under various conditions. The morphologies of assemblies were observed using transmission electron microscope (TEM). Under the identical condition, the amphiphilic bottlebrushes with higher PAm content (>5%) self assembled into sphere micelles, while the bottlebrushes with lower PAm content trended to form lamellar micelles and vesicles. The effects of initial concentration and solvents were investigated using PAm195-b-(PA-g-PS67)(153)-PAm195 under different conditions. The increase of the initial concentration changed the micelles from spheres to lamellae/vesicles. A common solvent with the solubility parameter closer to PS increased the mobility of the PS chains in the core, and led to assemblies of vesicles (thermodynamics steady state); while a selective solvent with the solubility parameter differed greatly from PS led to aggregation to form larger vesicles. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/35626]  |
| 专题 | 化学研究所_高分子物理与化学实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China 2.Sun Yat Sen Univ, Sch Mat Sci & Engn, Guangzhou 510275, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Long, Mei-lin,Zhang, Ke,Chen, Yong-ming,et al. Synthesis and Solution Self-assembly of Amphiphilic Molecular Bottlebrushes[J]. ACTA POLYMERICA SINICA,2016(9):1238-1246. |
| APA | Long, Mei-lin,Zhang, Ke,Chen, Yong-ming,&Zhu, Wen.(2016).Synthesis and Solution Self-assembly of Amphiphilic Molecular Bottlebrushes.ACTA POLYMERICA SINICA(9),1238-1246. |
| MLA | Long, Mei-lin,et al."Synthesis and Solution Self-assembly of Amphiphilic Molecular Bottlebrushes".ACTA POLYMERICA SINICA .9(2016):1238-1246. |
入库方式： OAI收割
来源：化学研究所
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