Investigation of size-effect on mechanical properties of nanoscale polymers

纳米聚合物机械性能的尺寸效应研究

• 批准号: 22656031
• 负责人: SHOUJI Satoru
• 金额: $ 1.96万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 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-22656031/
• 关键词: ポリマー; 弾性; 転移温度; ナノサイズ効果

The purpose of this project was to investigate mechanical properties of polymers in the nanoscale and their size dependence. Two-photon nanolithography was utilized to fabricate coil springs made of poly(methyl-methacrylate) nanowires with radii of 100-500 nm. Spring constants of the fabricated nano coil springs were measured in dried condition by utilizing two methods : laser trapping and atomic force microscope cantilever. From the spring constant, as well as the geometrical parameters of nano coil springs, the elastic modulus of polymer was investigated. The result shows that the elastic modulus of polymer increases with the decrease of the diameter of PMMA polymer wires.

该项目的目的是研究纳米级聚合物的机械性能及其尺寸依赖性。利用双光子纳米光刻技术制备了半径为100-500 nm的聚甲基丙烯酸甲酯纳米线螺旋弹簧。利用激光捕获和原子力显微镜悬臂梁两种方法测量了所制备的纳米螺旋弹簧在干燥条件下的弹簧常数。从弹簧常数以及纳米螺旋弹簧的几何参数出发，研究了聚合物的弹性模量。结果表明，随着PMMA聚合物丝直径的减小，聚合物的弹性模量增大。

项目成果

Nanomechanical properties of polymer revealed through two-photon lithographically fabricated nanocoils

通过双光子光刻制造的纳米线圈揭示聚合物的纳米机械特性

• 发表时间: 2011
• 作者: Yamato Sasaki;Hiroyuki Itoh;Naokazu Murata;Ken Suzuki;Hideo Miura;庄司暁
• 通讯作者: 庄司暁

Chirality-selective Quenching of Single-wall Carbon Nanotube Photoluminescence by Means of Femtosecond Laser Irradiation

飞秒激光照射单壁碳纳米管光致发光的手性选择性猝灭

• 发表时间: 2010
• 作者: T. Rodgers;S. Shoji;H. Kobayashi;S. Kuwahara;and S. Kawata
• 通讯作者: and S. Kawata

Microstructure formation of Au nanorods/methyl methacrylate composite assisted by two-photon polymerization

双光子聚合辅助金纳米棒/甲基丙烯酸甲酯复合材料微结构形成

• 发表时间: 2011
• 作者: K.Masui;S.Shoji;K.Asaba;X.-M.Duan;S.Kawata
• 通讯作者: S.Kawata

Supercritical Fluidic Carbon Dioxide Development of Polymer Nano-springs Fabricated by Two-photon Lithography

双光子光刻制备聚合物纳米弹簧的超临界流体二氧化碳开发

• 发表时间: 2010
• 作者: S. Shoji;T. Hamano;and S. Kawata
• 通讯作者: and S. Kawata

二光子加工による金ナノロッド/ポリマーコンポジットの3次元マイクロ構造作製

双光子处理金纳米棒/聚合物复合材料的 3D 微结构制造

• 发表时间: 2011
• 作者: 増井恭子;庄司暁;牛場翔太;段宣明;河田聡
• 通讯作者: 河田聡