Application and control of large-scale deformation (mechano-optical deformation) induced by photoirradiation

光辐照引起的大尺度变形（力光变形）的应用和控制

• 批准号: 07555603
• 负责人: SE Kazunori
• 金额: $ 0.96万
• 依托单位: Fukui University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07555603/
• 关键词: Photo-responsible polymer; Mechano-optical materials; Photo-recording materials; Azobenzene derivatives; Photochemical reaction; Poly (aminostirene) s; Quaternization; Block copolymers; ポリアザブタジエン

The photo-responsible film was prepared during the first year and the photochemical properties of the films were investigated during the second year. The details are described in the following.1.Preparation of block copolymer and azobenzene derivative : Poly (N,N-dimethyl-4-vinylphenethylamine-block-stirene) block copolymer (PPTA-b-PSt) was prepared by anionic living polymerization. p, p'-Bis (chloromethyl) azobenzene (CAB) was prepared from p-nitrobenzyl alcohol.2.Preparation and characterization of the cross-linked photo-responsible films : We could control the degree of quaternization of PPTA from 0% to 100% by using the appropriate reaction time and temperature. Both the ends of CAB were attached to amino groups of PPTA in the block copolymer by quaternization to permit cross-linked films. A UV spectrum of the film showed three absorption peaks due to the trans and cis form of CAB.3.Evaluation of photo-recording properties : When the films were irradiated with ultraviolet light (UV), CAB underwent photoisomerization from the trans to the cis form. The retention and deletion of the cis form were controlled by an alternation of the thermal motion of PPTA in the block copolymer.4.Application and control of mechano-optical behavior : When the films were irradiated with UV light above a glass transition temperature of PPTA,the film was deformed by conformational changes of CAB.The process should be utilized to induce photostimulated mechanical motion (mechano-optical deformation). In order to suppress and/or stimulate the mechano-optical deformation of the film, a systematic photochemical study was carried out in detail. Photo-irradiation time dependence of the films was analyzed by KWW equation to estimate the results.

在第一年期间制备的光响应膜和膜的光化学性质进行了研究，在第二年。具体内容如下：1.嵌段共聚物及偶氮苯衍生物的制备：采用阴离子活性聚合法制备了聚（N，N-二甲基-4-乙烯基苯乙胺-苯乙烯嵌段）嵌段共聚物（PPTA-b-PSt）。以对硝基苄醇为原料合成了对，对′-二（氯甲基）偶氮苯（CAB）。2.交联光响应膜的制备与表征：通过控制反应时间和反应温度，可以控制PPTA的季铵化度在0%~ 100%之间。CAB的两端通过季铵化连接到嵌段共聚物中PPTA的氨基上，以允许交联膜。薄膜的紫外光谱显示出三个吸收峰，这是由于CAB的反式和顺式形式。3.光记录性能的评价：当用紫外光（UV）照射薄膜时，CAB发生了从反式到顺式的光异构化。顺式结构的保留和缺失是通过PPTA在嵌段共聚物中热运动的交替来控制的。4.机械-光学行为的应用和控制：当膜在高于PPTA玻璃化转变温度的紫外光照射下，CAB的构象变化使膜变形，这一过程应被用来诱导光刺激机械运动（机械-光学变形）。为了抑制和/或刺激膜的机械光学变形，进行了详细的系统的光化学研究。用KWW方程分析了薄膜的光辐照时间依赖性。

项目成果

Kazunori Se: "Preparation and Characterization of Poly(4-vinylphenyldimethylvinylsilana) via Anionic Living Polymerization" Polymer,J.29. 458-466 (1997)

Kazunori Se：“通过阴离子活性聚合制备聚（4-乙烯基苯基二甲基乙烯基硅烷）并表征”聚合物，J.29。

Kazunori Se: "Preparation and Characterization of Poly (4-vinylphenyldimethylvinylsilane) via Anionic Living Polymerization" Polymer, J.29. 458-466 (1997)

Kazunori Se：“通过阴离子活性聚合制备聚（4-乙烯基苯基二甲基乙烯基硅烷）并表征”聚合物，J.29。

Kazunori Se, Kouzaburou Matsumura, Takeshi Kazama, and Teruo Fujimoto: "Lithographic Characterization of Poly (4-vinylphenyldimethylvinylsilane) Having a Narrow Molecular Weight Distribution" Polymer, J.29. 387-390 (1997)

Kazunori Se、Kouzaburou Matsumura、Takeshi Kazama 和 Teruo Fujimoto：“具有窄分子量分布的聚（4-乙烯基苯基二甲基乙烯基硅烷）的光刻表征”聚合物，J.29。

Kazunori Se: "Photochemical Isomerization of Azobenzene Incorporated in Poly (N, N-dimethyl-4-vinylphenethylamine-block-styrene) Diblock Copolymer by Cross Linkage" Polymer. 38 (in press). (1997)

Kazunori Se：“通过交联将偶氮苯掺入聚（N，N-二甲基-4-乙烯基苯乙胺-嵌段苯乙烯）二嵌段共聚物中的光化学异构化”聚合物。

Kazunori Se: "Dielectric Normal Mode Relaxation in Binary Blends of cis-Polyisoprene with Polystyrene or vinyl-Polyisoprene" Rept. Prog. Poly. Phys. Jpn.39. 487-490 (1996)

Kazunori Se：“顺式聚异戊二烯与聚苯乙烯或乙烯基聚异戊二烯的二元混合物中的介电常模弛豫”Rept。