Synthesis and characterization of biodegradable poly(butylene succinate‐co‐propylene succinate)s |
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| Authors: | Yongxiang Xu Jun Xu Dehua Liu Baohua Guo Xuming Xie |
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| Affiliation: | Department of Chemical Engineering, Laboratory of Advanced Materials of Ministry of Education, Institute of Polymer Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China |
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| Abstract: | Biodegradable polyesters such as poly(butylene succinate) (PBS), poly(propylene succinate) (PPS), and poly(butylene succinate‐co‐propylene succinate)s (PBSPSs) were synthesized respectively, from 1,4‐succinic acid with 1,4‐butanediol and 1,3‐propanediol through a two‐step process of esterification and polycondensation in this article. The composition and physical properties of both homopolyesters and copolyesters were investigated via 1H NMR, DSC, TGA, POM, AFM, and WAXD. The copolymer composition was in good agreement with that expected from the feed composition of the reactants. The melting temperature (Tm), crystallization temperature (Tc), crystallinity (X), and thermal decomposition temperature (Td) of these polyesters decreased gradually as the content of propylene succinate unit increased. PBSPS copolyesters showed the same crystal structure as the PBS homopolyester. Besides the normal extinction crosses under the polarizing optical microscope, the double‐banded extinction patterns with periodic distance along the radial direction were also observed in the spherulites of PBS and PBSPS. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008 |
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| Keywords: | biodegradable aliphatic polyesters polycondensation poly(butylene succinate‐co‐propylene succinate)s banded spherulites |
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