Abstract
A series of novel biodegradable unsaturated poly(ether ester amide)s (PEEAs) have been successfully prepared through interfacial polycondensation of 1,6-hexanediamine and unsaturated diacylchlorides containing ethylene oxide moieties linked to maleic anhydride by ester. The structures of PEEAs are verified by FT-IR and NMR spectra. The DSC and TGA measurements demonstrate the obtained polymers are amorphous and stable up to 300°C under nitrogen. Synthesized PEEAs show good hydrophilicity and improved solubility. The rate of hydrolytic degradation performed in the phosphate buffer solution (pH = 7.2) at 37°C increases with increasing the number of ether linkages per repeat unit in polymers. The degradation results indicate that PEEAs are hydrolyzable in a rapid and steady way.
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