Photoplasticization Effect of an Azobenzene-doped Liquid Crystal Depending on Phase Structures

被引：7

作者：

Yamamoto, Takahiro ^{[1
]}

Hasegawa, Rikuo ^{[2
]}

Kawata, Yuki ^{[1
]}

Kihara, Hideyuki ^{[1
]}

Naga, Naofumi ^{[2
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Res Inst Sustainable Chem, 1-1-1 Higashi, Tsukuba, Ibaraki 3058565, Japan

[2] Shibaura Inst Technol, Grad Sch Sci & Engn, Koto Ku, 3-7-5 Toyosu, Tokyo 1358548, Japan

来源：

CHEMISTRY LETTERS | 2018年 / 47卷 / 03期

关键词：

Photosoftening; Photochemical phase transition; Photoisomerization; AZO-POLYMER FILMS; COMMAND SURFACES; RELIEF GRATINGS; ALIGNMENT; LIGHT; BEHAVIOR; TRANSITION; BLENDS; SYSTEM; LAYERS;

D O I：

10.1246/cl.171072

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A photoresponsive plasticizer for a photo-inactive polymer was developed using an azobenzene-doped liquid crystal (LC). The azo-doped LC was miscible with poly(methyl methacrylate) up to a critical concentration, above which it phase-separated from the polymer. A photoinduced decrease in the glass transition temperature (T-g) of the polymer was accomplished by photochemically changing the phase structures of the phasese-parated LC; the large decrease in Tg (Delta T-g = -23 degrees C) was obtained with the addition of 70 wt% azo-doped LC.

引用

页码：272 / 275

页数：4

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