Novel photoresponsive LC polymer microparticles with actuator function

具有致动器功能的新型光响应液晶聚合物微粒

• 批准号: 22750168
• 负责人: YU Haifeng
• 金额: $ 2.58万
• 依托单位: Nagaoka University of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22750168/
• 关键词: ミクロアクチュエーター; 液晶高分子; 光機能; 微粒子; 光応答

Liquid-crystalline polymer microparticles were fabricated with a self-organized precipitation method, in which microparticles with narrow size distributions were fabricated in mixed solutions of a volatile good solvent and a nonvolatile poor one after evaporation of the good solvent. In such a narrow space of microparticles, their optical properties(such as refractive index, birefringence, et al.) were modulated by the photoinduced change in alignment of liquid crystals. These can be used as photo actuators. Then hybrid liquid crystalline materials were fabricated using optically transparent polymers(PMMA, PVA, et al.) by dispersing the Liquid-crystalline polymer microparticles inside them. The obtained hybrid materials showed good photoresponsive performance. Upon irradiation with UV light, the hybrid films after treatment of stretching bent towards the irradiation direction, directly transferring the light energy into mechanical energy. The present method can be used to fabricate stable hybrid materials with photoresponsive properties. The structure of the obtained materials can be easily modified by molecular design.

用自组织沉淀法制备了具有窄尺寸分布的液晶聚合物微粒，该方法在挥发性良溶剂和挥发性不良溶剂的混合溶液中蒸发良溶剂后制备了具有窄尺寸分布的微粒。在如此狭窄的微粒空间中，它们的光学性质（如折射率、双折射等）会受到影响。通过液晶取向的光致变化来调制。这些可以用作光致动器。然后利用光学透明聚合物（PMMA、PVA等）制备了杂化液晶材料。通过将液晶聚合物微粒分散在其中。所得杂化材料具有良好的光响应性能。在紫外光照射下，拉伸处理后的杂化膜向照射方向弯曲，直接将光能转化为机械能。本方法可用于制备具有光响应特性的稳定杂化材料。所获得的材料的结构可以通过分子设计容易地改变。

项目成果

Electrically conductive hybrid nanofibers constructed with two amphiphilic salt components.

• DOI: 10.1039/c1cc14145g
• 发表时间: 2011-11
• 期刊: Chemical communications
• 影响因子: 4.9
• 作者: Weimin Zhou;Takaomi Kobayashi;Huairui Zhu;Haifeng Yu

ネマチック液晶高分子における光応答性液晶微粒子の作製と評価

向列型液晶聚合物光响应液晶颗粒的制备及性能评价

• 发表时间: 2010
• 作者: 董沖;于海峰;小林高臣
• 通讯作者: 小林高臣

A Nematic Liquid-Crystalline Polymer: Synthesis, Photoresponse and Optical Patterns

向列液晶聚合物：合成、光响应和光学图案

• DOI: 10.1088/1757-899x/21/1/012025
• 发表时间: 2011
• 期刊: IOP Conference Series: Materials Science and Engineering
• 作者: Weimin Zhou;C. Dong;Haifeng Yu;Takaomi Kobayashi
• 通讯作者: Takaomi Kobayashi

Photomechanical behaviors of Hybrid Films of Liquid-Crystalline Polymer Microparticles

液晶聚合物微粒杂化膜的光机械行为

• 发表时间: 2011
• 期刊: Small
• 影响因子: 13.3
• 作者: Yu;H. F.; Dong;C.;Zhou;W.; Kobayasi;T.; Yang;H.
• 通讯作者: H.

Fabrication of Novel Organic Nanofibers Containing Aniline Hydrochloride

含盐酸苯胺的新型有机纳米纤维的制备

• 发表时间: 2011
• 作者: Zhou;W.; Zhu;H.; Yu;H. F.; Kobayashi;T.
• 通讯作者: T.