Branched macromolecules have found broad applications ranging from thermoplastics, rubbers, and adhesives to biomaterials. Recent developments in living polymerization techniques enabled the synthesis of diverse branched macromolecules of controlled composition and functionality. In the first part of this talk, the presenter will report their recent progress on the controlled synthesis and characterization of bottlebrush block copolymers containing quasi-alternating sidechains. Interesting phase separation behaviors that result in the formation of sub-5 nm nanodomains and independently tuned thermomechanical properties will be discussed. The concept of precision synthesis will then be extended for the preparation of hyperbranched polymers in the second part of this talk. A chain-growth type hyperbranched polymer was realized through a polymerization-induced radical generation process. This approach was utilized for the integration of hyperbranched building blocks into a variety of hierarchically-structured materials.

Tunable polymer nanostructures enabled by controlled branching

256th National Meeting (2018)

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