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Hassel and Marianne Ledbetter MatSE Colloquium - “Macromolecule sequence definition for advanced materials design”

Event Type
Seminar/Symposium
Sponsor
Materials Science and Engineering Department
Location
100 Materials Science and Engineering Building, 1304 W. Green Street, Urbana
Date
Oct 24, 2022   4:00 pm  
Speaker
Christopher Akinleye Alabi, Robert Frederick Smith School of Chemical and Biomolecular Engineering, Cornell University
Views
50
Originating Calendar
MatSE Colloquium Calendar

“Macromolecule sequence definition for advanced materials design”

Hierarchical self-assembly of functional materials with predictable properties requires the design and synthesis of programmable building blocks that encode information for self-organization across multiple length scales. Motivated by these opportunities and the need for sequence-control and structural diversity in polymeric materials research, I will present a versatile strategy for the assembly of sustainable cross-linkable sequence-defined macromolecules. This new sequence-defined oligocarbamate (SeDOC) platform overcomes the scalability issue that plagues the iterative assembly of sequence-defined macromolecules and enables the assembly of oligocarbamate macromers at the gram-scale. Data highlighting the effect of sequence on network topology, optical and mechanical properties will be discussed. Furthermore, I will discuss our research efforts toward designing a programmable macromer platform with molecular recognition motifs that can be used in non-aqueous media to encode information for hybridization. I will present data on selective pairs of complementary SeDOCs, characterized using multiple techniques, that can be created at scale and potentially used as ligands in a variety of chemical and materials applications.

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