Release Time:2019-03-11  Hits:

Indexed by: Conference Paper

Date of Publication: 2010-09-25

Included Journals: Scopus、CPCI-S、EI

Volume: 685

Page Number: 390-+

Key Words: polylactide; alanine; polyester amidea; melting copolymerizationa; biodegradable

Abstract: A new poly(ester amide)s (PEA) derived from L-lactic acid and alpha-alanine have been synthesized by melting copolymerization with p-toluenesulfonic acid (TSA) with stannous chloride (SnCl2) as catalyst. The products were analyzed by NMR, FT IR techniques. The effects of the content of alpha-alanine (L-Ala) on the copolymers structure were studied. Being the phosphate buffered saline (pH=7.2) as the degradation solution, the degradation rate speed up with the increasing the content of the alpha-alanine.