三脚型トリプチセン機能団が誘起する特異な高分子自己集合化と機能発現

三足三蝶烯官能团诱导的独特聚合物自组装和功能表达

• 批准号: 20J23317
• 负责人: CHEN YUGEN
• 金额: $ 1.6万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2020
• 资助国家: 日本
• 起止时间: 2020-04-24 至 2023-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-20J23317/
• 关键词: Tripodal triptycene; Self-assembly; Polydimethylsiloxane; Polyethylene glycol; Telechelic polymer; Poly(butyl acrylate); Di-block copolymer; Tripodal Triptycene; Telechelic Polymer; Narrow-disperse; Polyethylene Glycol

I conducted the following two research subjects.(1) I have investigated the structure and mechanical properties of telechelic PDMS with 1,8,13-substituted triptycene termini (1,8,13-TripPDMS). Interestingly, due to the excellent self-assembly ability of the triptycene termini, 1,8,13-TripPDMS can form a free-standing film without any chemical crosslinking. Furthermore, as the free-standing film was found to show self-healing properties in the temperature range below its melting point. This work was published in Chemical Science.(2) I also designed new AB diblock copolymer systems using poly(butyl acrylate) as a main chain with a triptycene-containing polymer segment to examine whether the specific self-assembly ability of triptycene can cause microphase separation leading to a particular structure. Interestingly, triptycene-containing AB diblock copolymers assemble into a well-defined ordered structure and exhibit enhanced mechanical and rheological properties. Detailed variable-temperature X-ray diffraction analysis revealed that the thermal stability of the assembled structure formed by the diblock copolymers improved as the triptycene content increases. This work was recently submitted for publication and is currently under review.

我进行了以下两个研究课题。(1)本文研究了末端为1，8，13-取代三蝶烯的遥爪PDMS（1，8，13-TripPDMS）的结构和力学性能。有趣的是，由于三蝶烯末端的优异的自组装能力，1，8，13-TripPDMS可以在没有任何化学交联的情况下形成自支撑膜。此外，由于自支撑膜被发现在低于其熔点的温度范围内显示出自修复特性。这项工作发表在《化学科学》上。(2)我还设计了新的AB二嵌段共聚物系统，使用聚（丙烯酸丁酯）作为主链与含三蝶烯的聚合物链段，以检查是否特定的自组装能力的三蝶烯可以导致微相分离，导致一个特定的结构。有趣的是，含三蝶烯的AB二嵌段共聚物组装成一个明确定义的有序结构，并表现出增强的机械和流变性能。详细的变温X-射线衍射分析表明，由二嵌段共聚物形成的组装结构的热稳定性随着三蝶烯含量的增加而提高。这项工作最近提交出版，目前正在审查中。

项目成果

三脚型トリプチセンを両末端に有するテレケリックポリエチレングリコールの自己集合挙動とゲル化特性3.学

两端具有三脚三蝶烯的遥爪聚乙二醇的自组装行为和凝胶特性 3. 科学

• 发表时间: 2021
• 作者: CHEN YUGEN;石割文崇;福井智也;梶谷孝;福島孝典
• 通讯作者: 福島孝典

Self-assembly properties of a telechelic polyethylene glycol with tripodal triptycene termini in water

具有三足三蝶烯末端的遥爪聚乙二醇在水中的自组装特性

• 发表时间: 2022
• 作者: Chen YUGEN;石割文崇;福井智也;梶谷孝;福島孝典
• 通讯作者: 福島孝典

Self-assembly behavior and mechanical properties of triptycene-appended di-block copolymers

三蝶烯二嵌段共聚物的自组装行为和机械性能

• 发表时间: 2022
• 作者: Chen YUGEN;福井智也;梶谷孝;福島孝典
• 通讯作者: 福島孝典

三脚型トリプチセンを両末端に持つポリジメチルシロキサンによる自己修復性自立膜形成

两端带有三蝶烯的聚二甲基硅氧烷形成自修复自支撑膜

• 发表时间: 2021
• 作者: CHEN YUGEN;石割文崇;福井智也;梶谷孝;福島孝典
• 通讯作者: 福島孝典

Remarkable effect of a tripodal triptycene additive on the self-assembling properties of narrow-distribution PDMS terminated with triptycene groups

三脚三蝶烯添加剂对三蝶烯基团封端的窄分布PDMS自组装性能的显着影响

• 发表时间: 2020
• 作者: Yugen CHEN;Fumitaka ISHIWARI;Keita FUCHISE;and Takanori FUKUSHIMA
• 通讯作者: and Takanori FUKUSHIMA