Abstract
Biodegradable poly{3,4-dihydroxycinnamic acid (DHCA, coffeic acid)-co-lithocholic acid (LCA)} polyester was synthesized by polycondensation of DHCA and LCA. The molecular structure of poly(DHCA-co-LCA) copolymers was characterized by FT-IR and 1H-NMR measurement. The photo-crosslinkability of poly(DHCA-co-LCA) depended on their compositions and could be tuned by varying the monomer ratio. The presence of LCA in the copolymers enhanced the solubility and thermal stability. In addition, poly(DHCA-co-LCA) and PDHCA exhibited higher fluorescence emission intensity than DHCA monomer. Accelerated hydrolysis experiments revealed that the degradation rate of poly(DHCA-co-LCA) was slower than that of PDHCA.
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This work is supported by National Natural Science Foundation (20876070) and the Fundamental Research Funds for the Central Universities (JUSRP10906, JUSRP31001).
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Dong, W., Li, H., Chen, M. et al. Biodegradable bio-based polyesters with controllable photo-crosslinkability, thermal and hydrolytic stability. J Polym Res 18, 1239–1247 (2011). https://doi.org/10.1007/s10965-010-9526-x
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DOI: https://doi.org/10.1007/s10965-010-9526-x