SYNTHESIS AND CHARACERIZATION OF A SERIES OF MESOGEN-JACKETED LIQUID CRYATALLINE POLYMERS WITH LONG MESOGENIC SIDE CHAINS
文献类型：期刊论文
| 作者 | Liang Xiaochao1; Chen Xiaofang1; Christopher, Li Y.2,3; Shen Zhihao1; Fan Xinghe1; Zhou Qifeng1 |
| 刊名 | ACTA POLYMERICA SINICA
 |
| 出版日期 | 2011-11-20 |
| 期号 | 11页码:1311-1319 |
| 关键词 | Mesogen-jacketed Liquid Crystalline Polymer Long Side Chain Smectic a Phase |
| ISSN号 | 1000-3304 |
| DOI | 10.3724/SP.J.1105.2011.11012 |
| 英文摘要 | A series of mesogen-jacketed liquid crystalline polymers, poly [2, 5-(4'-alkoxybiphenyloxycarbonyl) styrene] (PnCbiPCS, n = 4, 6, 8, 10, 14) with long mesogenic side chains, were prepared by atom transfer radical polymerization (ATRP). Molecular weights and molecular weight distributions of the polymers were measured by gel permeation chromatography (GPC). The liquid crystalline (LC) behavior was studied by a combination of differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), polarized light microscopy (PLM), one-dimensional (1D) and two-dimensional (2D) wide-angle X-ray diffraction (WAXD), and small-angle X-ray scattering (SAXS). All the polymers had good thermal stablility and exhibited stable LC properties, and no isotropization temperatures were observed before the onset temperatures of thermal decomposition. 1D SAXS and WAXD studies revealed that PnCbiPCS could form smectic structures with the long mesogenic side chains aligned parallel to each other. The d-spacings increased with increasing aliphatic tails. 2D WAXD results showed that the sheared samples exhibited Smectic A structures with the layer normal perpendicular to the shear direction. Comparing with the results of poly {2, 5-bis[(para-substituted phenyl) oxycarbonyl] styrene} s, one may indicate that the length of the mesogenic group is crucial in determining the LC structure. |
| 语种 | 英语 |
| WOS记录号 | WOS:000297825700013 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/73361]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Liang Xiaochao |
| 作者单位 | 1.Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Key Lab Polymer Chem & Phys,Minist Educ, Beijing 100871, Peoples R China 2.Drexel Univ, AJ Drexel Nanotechnol Inst, Philadelphia, PA 19104 USA 3.Drexel Univ, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA |
| 推荐引用方式 GB/T 7714 | Liang Xiaochao,Chen Xiaofang,Christopher, Li Y.,et al. SYNTHESIS AND CHARACERIZATION OF A SERIES OF MESOGEN-JACKETED LIQUID CRYATALLINE POLYMERS WITH LONG MESOGENIC SIDE CHAINS[J]. ACTA POLYMERICA SINICA,2011(11):1311-1319. |
| APA | Liang Xiaochao,Chen Xiaofang,Christopher, Li Y.,Shen Zhihao,Fan Xinghe,&Zhou Qifeng.(2011).SYNTHESIS AND CHARACERIZATION OF A SERIES OF MESOGEN-JACKETED LIQUID CRYATALLINE POLYMERS WITH LONG MESOGENIC SIDE CHAINS.ACTA POLYMERICA SINICA(11),1311-1319. |
| MLA | Liang Xiaochao,et al."SYNTHESIS AND CHARACERIZATION OF A SERIES OF MESOGEN-JACKETED LIQUID CRYATALLINE POLYMERS WITH LONG MESOGENIC SIDE CHAINS".ACTA POLYMERICA SINICA .11(2011):1311-1319. |
入库方式： OAI收割
来源：化学研究所
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