Systematic Order-Made Synthesis of Sequence-Defined Polyurethanes with Length, Types, and Topologies

被引:6
作者
Yamauchi, Haruka [1 ]
Inayama, Syunya [1 ]
Nakabayashi, Mahiro [1 ]
Hayashi, Shotaro [1 ,2 ]
机构
[1] Kochi Univ Technol, Sch Engn Sci, Kami, Kochi 7828502, Japan
[2] Kochi Univ Technol, Res Ctr Mol Design, Kami, Kochi 7828502, Japan
基金
日本学术振兴会;
关键词
ITERATIVE EXPONENTIAL-GROWTH; RING-OPENING POLYMERIZATION; ATRP-RCM SYNTHESIS; PHENYL ISOCYANATE; CYCLIC POLYMERS; ROUTE; CHEMISTRY; ORGANOCATALYSIS; COPOLYMERS; VERSATILE;
D O I
10.1021/acsmacrolett.3c00469
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Polyurethanes are industrially and academically important as soft materials. They are conventionally synthesized by a process based on step-growth polymerization; thus, molecular weight and structural control are impossible. However, the development of a synthetic strategy for polyurethanes remains a big challenge in designing soft materials. Herein, we demonstrate a synthetic methodology for generating polyurethanes with select-able lengths and termini characteristics. The multistep synthetic process offered the systematic synthesis of high-molecular weight, regioregular, and a,?-urethane telechelics. Various oligomers with order-made repeating units revealed the effective length of the polymer properties. To demonstrate the scope of our method-ology, it was also applied to the synthesis of block co-oligomers, three-armed star oligomers, and miktoarm star co-oligomers. Thus, our method allows the synthesis of high-molecular-weight oligomers with complete structural and molecular weight control, which is of enormous value to materials science; particularly the study and application of structure-property relationships in polyurethanes.
引用
收藏
页码:1264 / 1271
页数:8
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