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.

主要采用时间分辨同步加速器小角X射线散射技术和差示扫描量热法，研究了含有结晶-非晶嵌段共聚物的聚合物共混物的微相结构及其宏观相分离、微相分离和结晶相结合的形成过程。对于橡胶状无定形组分的体系，结晶是否破坏熔体中的微相分离结构取决于其形貌、分子量和温度；结晶发生在圆柱形结构内。另一方面，具有玻璃态无定形组分的体系完全保持了熔体结构。结构形成不受微相分离发生的影响；结晶后两种微相分离结构仍可共存。本研究表明，以熔体微相结构为模板，晶相可以在纳米级尺度上规则排列。

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

ブロック共重合体のミクロ相分離下からの結晶化挙動と相構造形成

嵌段共聚物微相分离下的结晶行为和相结构形成

• 发表时间: 2005
• 期刊: 繊維と工業 61
• 作者: 塩見友雄