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Synthesis and Characterization of New Biodegradable Polymers for Biomodeling and Biomedical Applications
Author(s) -
Sung Yong Kiel,
Song Dae Kyung
Publication year - 2005
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200550621
Subject(s) - propanediol , crystallinity , biodegradation , polybutylene succinate , polymer , succinic acid , polyester , succinic anhydride , 1,3 propanediol , materials science , biodegradable polymer , polymer chemistry , organic chemistry , chemistry , glycerol , composite material
Biodegradable poly(1,2‐propanediol succinate) and poly(1,3‐propanediol succinate) were synthesized using 1,2‐propanediol and 1,3‐propanediol with succinic anhydride, respectively. The synthesized polymers were identified by NMR spectrometry and FT‐IR spectrophotometry. The weight average molecular weights were 8,900 in poly(1,2‐propanediol succinate) and 8,600 in poly(1,3‐propanediol succinate), respectively. The biodegradation behavior of polymers in microorganisms was studied by using a modified ASTM method. These polyesters were degraded to lower molecular weight compounds depending on hydrophobicity and hydrophilicity. The quantitative determination of carbon dioxide, generated during the treatment with the activated sludge, showed that poly(1,3‐propanediol succinate) was biodegraded faster than poly(1,2‐propanediol succinate). The biodegradation ability of the polymers by Aspergillus niger was monitored to check the molecular weights using GPC and to check the crystallinity change of the polymers using DSC. Based upon the visual observation of the biodegraded polymers, the crystalline structure of poly(1,2‐propanediol succinate) apparently retained its crystallinity longer than the similar structure in poly(1,3‐propanediol succinate).