Abstract
A plasticizer triethylene glycol maleate (TEG-MA) was synthesized. The dominated monoester of moderate hydrophobicity with apparent oil-water partition coefficient of 0.042 in the product was confirmed by acid value determination, HPLC and FTIR. Its plasticizing effect on oxidized starch was manifested by crystallization, aging behaviour, moisture absorption, and mechanical performance. X-ray diffraction data showed that the relative crystallinity of the plasticized starch decreased. Both the crystal and the crystallinity of starch films were rarely changed in aging. Moisture absorption relied on the ester content and relative humidity. The elongation at break increased significantly with plasticizer content more than 10% in the matrix.
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Funded by Science and Technology Support Project of Sichuan Province(Nos. 2014GZ0136 and 2015GZ0176), and National Natural Science Foundation of China(No.51603134)
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Cheng, F., Lin, Y., Zhao, K. et al. Preparation of triethylene glycol maleate and its effect on plasticization of oxidized starch. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 31, 1167–1173 (2016). https://doi.org/10.1007/s11595-016-1507-4
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DOI: https://doi.org/10.1007/s11595-016-1507-4