Kuo, D.; Chen, E.; Wu, T. Melt Processing and Characterization of Biodegradable Poly(butylene succinate-co-adipate)/Hexadecylamine-Modified Layered Zinc Phenylphosphonate Nanocomposites. Preprints2018, 2018050269. https://doi.org/10.20944/preprints201805.0269.v1
Kuo, D., Chen, E., & Wu, T. (2018). Melt Processing and Characterization of Biodegradable Poly(butylene succinate-<em>co</em>-adipate)/Hexadecylamine-Modified Layered Zinc Phenylphosphonate Nanocomposites. Preprints. https://doi.org/10.20944/preprints201805.0269.v1
Kuo, D., Erh-Chiang Chen and Tzong-Ming Wu. 2018 "Melt Processing and Characterization of Biodegradable Poly(butylene succinate-<em>co</em>-adipate)/Hexadecylamine-Modified Layered Zinc Phenylphosphonate Nanocomposites" Preprints. https://doi.org/10.20944/preprints201805.0269.v1
Biocompatible and biodegradable poly(butylene succinate-co-adipate) (PBSA)/hexadecylamine-modified PPZn (m-PPZn) nanocomposites were prepared using a melt mixing process. Experimental results of wide-angle X-ray diffraction and transmission electron microscopy revealed that the stacking layers of the m-PPZn were partially intercalated and partially exfoliated into the PBSA polymer matrix. The isothermal crystallization kinetics of PBSA/m-PPZn nanocomposites were studied at the temperature range of 62−70 °C and the half-time for crystallization of 3 wt % PBSA/m-PPZn nanocomposite was reduced by 27−35% compared with that of pure PBSA. This finding suggests that the incorporation of m-PPZn might cause the heterogeneous nucleation and the subsequent crystallization growth, which enhances the isothermal crystallization rate of PBSA/m-PPZn nanocomposite. The biodegradation rates of PBSA using Lipase from Pseudomonas sp. increase as the contents of m-PPZn increase. The degradation behavior of the neat PBSA investigated using the change of weight-average molecular weight belongs to exo-type hydrolysis activity. It is necessary to point out that the change of degree of crystallinity and degradation rate are almost linearly proportional to the loading of hexadecylamine-modified PPZn. This finding would provide an important information for the manufacturing biodegradable PBSA nanocomposites.
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