Control and suppression of surface relief gratings in liquid-crystalline perfluoroalkyl-azobenzene polymers

被引：47

作者：

You, Fengxiang

Paik, Marvin Y.

Haeckel, Michael

Kador, Lothar

Kropp, Daniela

Schmidt, Hans-Werner

Ober, Christopher K. ^{[1
]}

机构：

[1] Cornell Univ, Dept Mat Sci & Engn, Ithaca, NY 14853 USA

[2] Univ Bayreuth, BIMF, D-95440 Bayreuth, Germany

[3] Univ Bayreuth, Inst Phys, D-95440 Bayreuth, Germany

来源：

ADVANCED FUNCTIONAL MATERIALS | 2006年 / 16卷 / 12期

关键词：

D O I：

10.1002/adfm.200500711

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Semifluorinated azobenzene liquid-crystalline side-chain polymers with different perfluoroalkyl lengths are used to develop surface relief gratings (SRGs). With sufficient fluorinated side-chain lengths, surface relief gratings could be completely sup-assembled liquid-crystalline order at the surface. This indicates that there is a surface-dependent nature pressed due to the self to SRG formation. The SRG formation from the semifluorinated azobenzene liquid-crystalline side-chain polymers is compared to methoxy-terminated azobenzene side-chain polymers, and results show that the perfluoroalkyl-azobenzene polymers require a longer formation time than the methoxy-terminated polymers.

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页码：1577 / 1581

页数：5

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