File Name : scheme s1.tif

Caption : scheme s1. schematic illustration of the bench-scale process.

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Caption : scheme s2. reaction mechanism of base-catalyzed transesterification reaction.

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Caption : figure s1. analysis of pbc by 1h-nmr. 

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Caption : figure s2. analysis of pbci40, oligomer and monomers by 1h-nmr.

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Caption : figure s3. analysis of pbi by 1h-nmr.

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Caption : figure s4. 1h-nmr spectroscopy analysis of dyad fractions in the copolymer.

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Caption : figure s5. analysis of pbci40 by 13c-nmr.

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Caption : figure s6. analysis of pbc, pbcis, pbi copolymers by 13c-nmr.

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Caption : figure s7. microstructure analysis of the pbcis. (black - 1h nmr, blue - 13c nmr)