Improvement of LPS-based command surfaces: effect of inserting a flexible disiloxane segment into the azo side chain on photo-driven response
文献类型：期刊论文
| 作者 | Kong, B; Cui, L; Xie, P; Zhang, RB; He, CB; Chung, NTS |
| 刊名 | LIQUID CRYSTALS
 |
| 出版日期 | 2000-12-01 |
| 卷号 | 27期号:12页码:1683-1689 |
| ISSN号 | 0267-8292 |
| 英文摘要 | A new synthetic route for azo grafted ladder-like polysilsesquioxanes (LPS) used for fabricating command surfaces has been developed. In comparison with previous work, the grafting ratio of azobenzene on the LPS backbone could be controlled more accurately and the low molar mass impurity, which might influence the concerted action of the azobenzene units as command moieties on the surrounding LC molecules, could be readily removed by repeated precipitation. The results of our measurements indicate that inserting a flexible disiloxane segment into the spacer of the side group can improve the photo-driven response. The response steepness of a LC cell is 20 times that of our previous result. However, the response speed also depends on the spacer length and the content of azo side groups. Using azo grafted LPS with a shorter spacer as the material for the command surface, the response speed is faster than with a longer spacer. Optimum response can be achieved at an azo content of 10 mol %. |
| 语种 | 英语 |
| WOS记录号 | WOS:000165437800014 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/76093]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhang, RB |
| 作者单位 | 1.Chinese Acad Sci, Polymer Chem Lab, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, China Petrochem Corp, Beijing 100080, Peoples R China 3.Natl Univ Singapore, Inst Mat Res & Engn, Singapore 119260, Singapore |
| 推荐引用方式 GB/T 7714 | Kong, B,Cui, L,Xie, P,et al. Improvement of LPS-based command surfaces: effect of inserting a flexible disiloxane segment into the azo side chain on photo-driven response[J]. LIQUID CRYSTALS,2000,27(12):1683-1689. |
| APA | Kong, B,Cui, L,Xie, P,Zhang, RB,He, CB,&Chung, NTS.(2000).Improvement of LPS-based command surfaces: effect of inserting a flexible disiloxane segment into the azo side chain on photo-driven response.LIQUID CRYSTALS,27(12),1683-1689. |
| MLA | Kong, B,et al."Improvement of LPS-based command surfaces: effect of inserting a flexible disiloxane segment into the azo side chain on photo-driven response".LIQUID CRYSTALS 27.12(2000):1683-1689. |
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来源：化学研究所
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