Considering the advanced functions of natural polymers on the basis of sequence, sequence control has been studied even for synthetic polymers, but the control and the sequence-oriented functions are still beyond our reach. In this work, our efforts have been directed to precise control of the initiation and propagation for alternating radical copolymerization with a pair of electron-rich and poor monomers toward sequence-oriented functions. As the comonomer pair, styrene (St) and maleimide (MI) derivatives are used because various substitutes can be combined in their substituents, such as a structure-inducing group (i.e., for aggregation) and a functional counterpart. We have recently found that an electron-poor halide initiator showing a highly selective initiation to St allowed sequence analysis by MALDI-TOF-MS and combination of the simple derivatives resulted in disarray of the alternating sequence. On the basis of the sequence analysis, new monomers were designed toward precise control of the alternating sequence without error.

Molecular design toward advanced control of alternating sequence based on radical alternating copolymerization

254th National Meeting (2017)

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