嬉戏
大分子单体
计算机科学
可扩展性
材料科学
聚合
聚合物
复分解
复合材料
操作系统
作者
Hung V.-T. Nguyen,Nolan M. Gallagher,Farrukh Vohidov,Yivan Jiang,Ken Kawamoto,Hui Zhang,Jiwon V. Park,Zhihao Huang,M. Francesca Ottaviani,Andrzej Rajca,Jeremiah A. Johnson
出处
期刊:ACS Macro Letters
[American Chemical Society]
日期:2018-03-26
卷期号:7 (4): 472-476
被引量:40
标识
DOI:10.1021/acsmacrolett.8b00201
摘要
The polymerization of functional monomers provides direct access to functional polymers without need for postpolymerization modification; however, monomer synthesis can become a bottleneck of this approach. New methods that enable rapid installation of functionality into monomers for living polymerization are valuable. Here, we report the three-step convergent synthesis (two-step longest linear sequence) of a divalent exo-norbornene imide capable of efficient coupling with various nucleophiles and azides to produce diversely functionalized branched macromonomers optimized for ring-opening metathesis polymerization (ROMP). In addition, we describe an efficient iterative procedure for the synthesis of tri-and tetra-valent branched macromonomers. We demonstrate the use of these branched macromonomers for the synthesis of Janus bottlebrush block copolymers as well as for the generation of bottlebrush polymers with up to three conjugated small molecules per repeat unit. This work significantly expands the scalability and diversity of nanostructured macromolecules accessible via ROMP.
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