赛克洛克提因终端功能化多分子 (morpholine-2,5-dione) 的s.
Johanna Schreiber1,2, Natalie E Göppert1,2, Leanne M Stafast1,2
1Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743, Jena, Germany.
Macromolecular rapid communications
|November 29, 2024
概括
这项研究引入了一种新型的启动器,用于控制氨基酸基单体的聚合,从而产生功能性聚胺. 循环催化剂启动器允许无金属的点击化学附着其他分子,从而实现定制的聚合物应用.
科学领域:
- 聚合物化学 聚合物化学
- 有机合成 有机合成
- 材料科学 材料科学 材料科学
背景情况:
- 环开聚合 (ROP) 是合成聚合物的关键方法.
- 功能启动器对于控制聚合物架构和特性至关重要.
- 氨基酸衍生单体提供生物相容性和可调性特性.
研究的目的:
- 开发一种新型的cyclooctyne功能化的启动器,用于控制Morpholine-2,5-diones的ROP.
- 为了合成精确定义的聚胺和一个cyclooctyne部分在alpha-end组.
- 通过点击化学证明cyclooctyne组在聚合后修饰的实用性.
主要方法:
- 有机催化环开聚合 (ROP) 使用DBU和TU的二进制系统.
- 用 (1R,8S,9S) - 双循环-[6.1.0]非-4-yn-9-yl甲醇 (BCN-OH) 进行启动.
- 使用1H NMR,SEC和MALDI-TOF-MS进行表征.
- 应变促进的亚酸循环添加 (SPAAC) 用于区块共聚合物合成.
主要成果:
- 由 BCN-OH启动的2,5-二氧化的受控ROP,最高可达到80%的单体转化.
- 合成具有较低分散度 (≤1.25) 的聚甲基-2,5-二烯基和循环甲基的α-末端组.
- 通过通过SPAAC将一个维生素A功能化的聚-2-乙基-2-佐 (poly) 与聚胺 (polyester amide) 合在一起,成功合成了一个块共聚合物.
- 使用SEC和DOSYNMR确认块共聚合物结构.
结论:
- BCN-OH是一种有效的启动器,可控制Morpholine-2,5-diones的ROP.
- 循环胺部分使得聚胺的多功能,无金属的功能化成为可能.
- 这种方法可以为各种应用提供新一代可定制的功能性聚胺.
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