Structure Formation and Its Control in Combined Phase Transition in Block Copolymers Blends

嵌段共聚物共混物中组合相变的结构形成及其控制

• 批准号: 14350494
• 负责人: SHIOMI Tomoo
• 金额: $ 9.41万
• 依托单位: Nagaoka University of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14350494/
• 关键词: crystalline block copolymer; polymer blend; microphase separation; macrophase separation; crystallization; nano-ordered structure; time-resolved small-angle X-ray scattering; 高次構造; 時分割小角X線散; ポリエチレングリコール-block-ポリブタジエン; ポリエチレン-block-ポリスチレン

Microphase structure and its formation process in combination of macrophase separation, microphase separation and crystallization were investigated for polymer blends containing crystalline-amorphous block copolymers using mainly time-resolved synchrotron small-angle X-ray scattering technique and diffferantial scanning calorimetry. For the systems with a rubbery amorphous component, whether or not crystallization destroyed microphase separation structure in melt depended on its morphology, molecular weight and temperature ; crystallization occurred within cylindrical structure. On the other hand, melt structure was maintained completely for the systems with a glassy amorphous component. The structure formation was not affected by occurrence of microphase separation ; two kinds of miaophase separation structure could coexist even after crystallization. The present study revealed that the crystalline phase could be ananged regularly in the nano-order scale using melt microphase structure as a template.

采用时间分辨同步辐射小角X射线散射技术和差示扫描量热法研究了结晶-非结晶嵌段共聚物共混体系的微相结构及其宏观相分离、微相分离和结晶过程。对于含有橡胶状非晶组分的体系，结晶是否破坏熔体中的微相分离结构取决于其形态、分子量和温度，结晶发生在圆柱形结构内。另一方面，熔体结构完全保持与玻璃态无定形组分的系统。微相分离的发生不影响结构的形成，结晶后两种微相分离结构可以共存。研究表明，以熔体微相结构为模板，可以在纳米尺度上有规律地改变晶相结构。

项目成果

Crystallization and Structure Formation of Block Copolymers

嵌段共聚物的结晶和结构形成

• 发表时间: 2002
• 期刊: Polymer Applications 51
• 作者: T.Shiomi;H.Takeshita
• 通讯作者: H.Takeshita

Crystallization Behavior and Phase-Structure of Crystalline Block Copolymers

结晶嵌段共聚物的结晶行为和相结构

• 发表时间: 2005
• 期刊: Sen'i Gakkaishi (Fiber) 61
• 作者: T.Shiomi;H.Takeshita
• 通讯作者: H.Takeshita

T.Shiomi, H.Takeshita, H.Kawaguchi, M.Nagai, K.Takenaka, M.Miya: "Crystallization and structure formation of block copolymers containing a rubbery amorphous component"Macromolecules. 35. 8056-8065 (2002)

T.Shiomi、H.Takeshita、H.Kawaguchi、M.Nagai、K.Takenaka、M.Miya：“含有橡胶状无定形组分的嵌段共聚物的结晶和结构形成”大分子。

Crystallization and Structure Formation of Block Copolymers Containing a Glassy Amorphous Component

含有玻璃态无定形组分的嵌段共聚物的结晶和结构形成

• 发表时间: 2004
• 期刊: Journal of Polymer Science, Part B : Polymer Physics Ed. 42
• 作者: D.S.Kim;S.C.Shim;T.Wada;Y.Inoue;H.Takeshita
• 通讯作者: H.Takeshita

ソフトマテリアルの新展開

软材料新进展

• 发表时间: 2004
• 作者: 加藤隆史;守山雅也;岸本健史;上川裕子
• 通讯作者: 上川裕子