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)研究了具有1,8,13取代三蝶烯末端的遥爪PDMS(1,8,13-TripPDMS)的结构和机械性能。有趣的是，由于三蝶烯末端优异的自组装能力，1,8,13-TripPDMS无需任何化学交联即可形成独立的薄膜。此外，发现自支撑薄膜在低于其熔点的温度范围内表现出自修复性能。该工作发表在《Chemical Science》上。(2)我还设计了一种以聚丙烯酸丁酯为主链、含有三蝶烯聚合物链段的新型AB二嵌段共聚物体系，以检验三蝶烯的特定自组装能力是否可以引起微相。分离导致特定的结构。有趣的是，含有三蝶烯的 AB 二嵌段共聚物组装成明确的有序结构，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，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。这项工作最近已提交出版，目前正在审查中。

项目成果

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;Takanori FUKUSHIMA
• 通讯作者: Takanori FUKUSHIMA

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

两端带有三脚架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

Overcoming the entropy of polymer chains by making a plane with terminal groups: A thermoplastic PDMS with a long-range 1D structural order

通过制造带有端基的平面来克服聚合物链的熵：具有长程一维结构顺序的热塑性聚二甲基硅氧烷

• DOI: 10.1039/d2sc05491d
• 发表时间: 2023
• 作者: Y. Chen; F. Ishiwari; T. Fukui; T. Kajitani; H. Liu; X. Liang; K. Nakajima; M. Tokita; T. Fukushima
• 通讯作者: T. Fukushima

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

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