Design, synthesis, and characterization of a combined main-chain/side-chain liquid-crystalline polymer based on ethyl cellulose
文献类型：期刊论文
| 作者 | Hu, Tianhui1; Xie, Helou1; Xiao, Jianbo1; Zhang, Hailiang1; Chen, Erqiang2 |
| 刊名 | CELLULOSE
 |
| 出版日期 | 2010-06-01 |
| 卷号 | 17期号:3页码:547-558 |
| 关键词 | Dcc Coupling Liquid-crystalline Cellulose Derivatives Main-chain/side-chain Liquid-crystalline Polymer Phase Behavior Supramolecular Structures |
| ISSN号 | 0969-0239 |
| DOI | 10.1007/s10570-009-9392-z |
| 英文摘要 | A novel combined main-chain/side-chain liquid-crystalline polymer based on an ethyl cellulose main chain containing azobenzene mesogens (AzoEC) was successfully synthesized. Molecular characterization of the resulting polymers with different degrees of substitution (DS) was performed with proton nuclear magnetic resonance ((1)H NMR), Fourier-transform infrared spectroscopy (FTIR), and gel permeation chromatography (GPC). Thermal stability was investigated by thermogravimetric analysis (TGA). The phase transitions and liquid-crystalline behavior of these polymers were investigated by differential-scanning calorimetry (DSC), polarized optical microscopy (POM), and wide-angle X-ray diffraction (WAXD). The results indicate that DS has substantial effect on the liquid-crystalline behavior of these polymers. AzoEC with low DS only shows the cholesteric phase similar to ethyl cellulose (EC). However, when DS increases to a specific value, AzoEC begins to show fascinating supramolecular structures. The supramolecular structure of AzoEC with maximum DS consisted of a large-scale ordered lamellar structure formed by EC main chains and a small-scale ordered structure formed by azobenzene mesogens. |
| 语种 | 英语 |
| WOS记录号 | WOS:000277637100007 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/69645]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhang, Hailiang |
| 作者单位 | 1.Xiangtan Univ, Coll Chem, Key Lab Adv Funct Polymer Mat Coll & Univ Hunan P, Key Lab Polymer Mat & Applicat Technol Hunan Prov, Xiangtan 411105, Hunan, Peoples R China 2.Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Key Lab Polymer Chem & Phys,Minist Educ, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Tianhui,Xie, Helou,Xiao, Jianbo,et al. Design, synthesis, and characterization of a combined main-chain/side-chain liquid-crystalline polymer based on ethyl cellulose[J]. CELLULOSE,2010,17(3):547-558. |
| APA | Hu, Tianhui,Xie, Helou,Xiao, Jianbo,Zhang, Hailiang,&Chen, Erqiang.(2010).Design, synthesis, and characterization of a combined main-chain/side-chain liquid-crystalline polymer based on ethyl cellulose.CELLULOSE,17(3),547-558. |
| MLA | Hu, Tianhui,et al."Design, synthesis, and characterization of a combined main-chain/side-chain liquid-crystalline polymer based on ethyl cellulose".CELLULOSE 17.3(2010):547-558. |
入库方式： OAI收割
来源：化学研究所
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