Abstract
The polymerization kinetics of DL- and L-aspartic acid, either in the absence or presence of sodium bisulfate were studied with thermogravimetric analysis. The results revealed that the polymerization of both types of aspartic acids proceeds through the dehydration in two steps, the loss of one water molecule in each step, and the presence of sodium bisulfate effectively catalyzed the polymerization.
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S. G. Fox and K. Harada, J. Am. Chem. Soc., 82 (1960) 3745.
K. C. Low and L. P. Koskan, Polym. Mater. Sci. Eng., Proc. of Am. Chem. Soc. Div. Polym. Mater. Sci. and Eng., 69 (1993) 253.
S. Roweton, S. J. Huang and G. Swift, J. Environ. Polym. Degrad., 5 (1997) 175.
J. P. Garris and C. S. Sikes, Coll. Surf. A, 80 (1993) 103.
E. Mueller and C. S. Sikes, Calcif. Tissue Int., 52 (1993) 34.
D. C. Silverman, D. J. Kalota and F. S. Stove, Corrosion, 51 (1995) 818.
A. M. Kinnersley, L. P. Koskan, D. J. Strom and A. R. Y. Meah, U.S. Patent 5,350,735, 1994.
M. B. Freeman, Y. H. Paik, G. Swift, R. Wilcynski, S. K. Wolk and K. M. Yocum, in R. Ottenbrite, S. Huang, K. Park (Eds), Hydrogels and Biodegradable Polymers for Bioapplications, ACS Symposium Series 626; 1996, Chapter 10.
J. Mosig, C. H. Gooding and A. P. Wheeler, Ind. Eng. Chem. Res., 36 (1997) 2163.
L. P. Koskan, U.S. Patent 5,057,597, 1991.
L. L. Wood and G. J. Calton, J. Cleaner Prod., 5 (1997) 245.
T. Ozawa, J. Thermal Anal., 2 (1970) 301.
A. Aouad, L. Bilali, M. Benchanâa and A. Mokhlisse, J. Therm. Anal. Cal., 67 (2002) 733.
F. Rodante, G. Catalani and S. Vecchio, J. Therm. Anal. Cal., 68 (2002) 689.
P. Budrugeac, J. M. Criado, F. J. Gotor, C. Popescu and E. Segal, J. Therm. Anal. Cal., 63 (2001) 777.
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Wang, Y., Zhang, J., Hou, Y. et al. TG study on the kinetics of the polymerization of aspartic acid catalyzed by sodium bisulfate. Journal of Thermal Analysis and Calorimetry 73, 923–929 (2003). https://doi.org/10.1023/A:1025811320698
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DOI: https://doi.org/10.1023/A:1025811320698