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Synthesis of mu-ABC Tricyclic Miktoarm Star Polymer via Intramolecular Click Cyclization

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Title: Synthesis of mu-ABC Tricyclic Miktoarm Star Polymer via Intramolecular Click Cyclization
Authors: Shingu, Tomoki Browse this author
Yamamoto, Takuya Browse this author
Tajima, Kenji Browse this author
Isono, Takuya Browse this author
Satoh, Toshifumi Browse this author →KAKEN DB
Keywords: triblock terpolymer
cyclic polymer
ring-opening polymerization
click reaction
Issue Date: Aug-2018
Publisher: MDPI
Journal Title: Polymers
Volume: 10
Issue: 8
Start Page: 877
Publisher DOI: 10.3390/polym10080877
Abstract: Cyclic polymers exhibit unique physical and chemical properties because of the restricted chain mobility and absence of chain ends. Although many types of homopolymers and diblock copolymers possessing cyclic architectures have been synthesized to date, there are relatively few reports of cyclic triblock terpolymers because of their synthetic difficulties. In this study, a novel synthetic approach for mu-ABC tricyclic miktoarm star polymers involving t-Bu-P4-catalyzed ring-opening polymerization (ROP) of glycidyl ethers and intramolecular copper-catalyzed azido-alkyne cycloaddition (CuAAC) was developed. First, the t-Bu-P-4-catalyzed ROP of decyl glycidyl ether, dec-9-enyl glycidyl ether, and 2-(2-(2-methoxyethoxy) ethoxy) ethyl glycidyl ether with the aid of functional initiators and terminators was employed for the preparation of a clickable linear triblock terpolymer precursor possessing three azido and three ethynyl groups at the selected positions. Next, the intramolecular CuAAC of the linear precursor successfully produced the well-defined tricyclic triblock terpolymer with narrow dispersity in a reasonable yield. The present strategy is useful for synthesizing model polymers for studying the topological effects on the triblock terpolymer self-assembly.
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 磯野 拓也

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