Synthesis and properties of azobenzene-containing poly(1-alkyne)s with different functional pendant groups
文献类型：期刊论文
| 作者 | Zhou, Jing-Lun; Chen, Xiaci-Fang; Fan, Xing-He; Chai, Chun-Peng; Lu, Chun-Xiang; Zhao, Xiao-Dong; Pan, Qi-Wei; Tang, Hao-Yu; Gao, Lcing-Cheng; Zhou, Qi-Feng |
| 刊名 | JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
 |
| 出版日期 | 2006-08-01 |
| 卷号 | 44期号:15页码:4532-4545 |
| 关键词 | Azobenzene Conjugated Polymers Liquid-crystalline Polyacetylenes Synthesis |
| ISSN号 | 0887-624X |
| DOI | 10.1002/pola.21548 |
| 英文摘要 | 1-Alkynes containing azobenzene mesogenic moieties [HC=C(CH(2))(9)-O-ph-N=N-ph-O-R; R = ethyl (1), octyl (2), decyl (3), (S)-2-methylbutyl (4), or (S)-1-ethoxy-l-oxopropan-2-yl (5); ph = 1,4-phenyl] were synthesized and polymerized in the presence of a Rh catalyst {(nbd)Rh(+)[B(C(6)H(5))(4)](-); nbd = 2,5-norbornadiene} to yield a series of liquid-crystalline polymers in high yields (e.g., > 75%). These polymers had moderate molecular weights (number-average molecular weight >= 12,000), high cis contents in the main chain (up to 83%), good thermal stability, and good solubility in common organic solvents, such as tetrahydrofuran, chloroform, and dichloromethane. These polymers were thoroughly characterized by a combination of infrared, nuclear magnetic resonance, thermogravimetric analysis, differential scanning calorimetry, polarized optical microscopy, and two-dimensional wide-angle X-ray diffraction techniques. The liquid-crystalline behavior of these polymers was dependent on the tail group attached to the azobenzene structure. Poly-1, which had the shortest tail group, that is, an ethyl group, showed a smectic A mesophase, whereas poly-2, poly-3, and poly-5, which had longer or chiral tail groups, formed smectic C mesophases, and poly-4, which had another chiral group attached to the azobenzene structure, showed a chiral smectic C mesophase in both the heating and cooling processes. (c) 2006 Wiley Periodicals, Inc. |
| 语种 | 英语 |
| WOS记录号 | WOS:000239183400015 |
| 出版者 | WILEY-BLACKWELL |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/60215]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Fan, Xing-He |
| 作者单位 | 1.Peking Univ, Coll Chem & Mol Engn, Key Lab Polymer Chem & Phys Minist Educ, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Inst Coal Chem, Key Lab Carbon Mat, Shanxi 030001, Taiyuan, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Jing-Lun,Chen, Xiaci-Fang,Fan, Xing-He,et al. Synthesis and properties of azobenzene-containing poly(1-alkyne)s with different functional pendant groups[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2006,44(15):4532-4545. |
| APA | Zhou, Jing-Lun.,Chen, Xiaci-Fang.,Fan, Xing-He.,Chai, Chun-Peng.,Lu, Chun-Xiang.,...&Zhou, Qi-Feng.(2006).Synthesis and properties of azobenzene-containing poly(1-alkyne)s with different functional pendant groups.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,44(15),4532-4545. |
| MLA | Zhou, Jing-Lun,et al."Synthesis and properties of azobenzene-containing poly(1-alkyne)s with different functional pendant groups".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 44.15(2006):4532-4545. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。