S. Zhou, X. Deng, X. Li, W. Jia, and L. Liu, J. Appl. 41, 1937 (2008). K. Schwarz and M. Epple, Macromol. PGA Polymer Features and Benefits © 2020 Springer Nature Switzerland AG. PGA has been known since 1954 as a tough fiber-forming polymer. Y. Lu, C. Schmidt, and S. Beuermann, Macromol. Lei, J. Polym. The synthesis of PLA is a multistep process which starts from the production of lactic acid and ends with its polymerization [2–4, 6–7]. It is synthesized from sucrose via lactic-acid bacteria like Leuconostoc mesenteroides, Streptococcus mutans, and lactic acid bacterium Lactobacillus brevis. Son, and J.-H. Kim, Polym. 2014 May;10(5):2112-24. doi: 10.1016/j.actbio.2013.12.041. J., Stabil., Young Jun Kim. Polym., polyglycolide is typically made by ring opening polymerization of the cyclic diester glycolide. It is colloidal and hydrophilic in nature; it is inert to the in vivo environment with no effect on cell viability [ 128 ]. Biodegradable polyglycolic acid (PGA), the simplest aliphatic linear polyester, can traditionally be synthesized through the ring-opening polymerization of glycolide. Poly(glycolic acid) (PGA) is an essential biopolymer due to its thermal and mechanical properties and biodegradability which provide utility for medical applications and renewable industry. J. H. Flynn and L. A. L. I. Ramdhanie, S. R. Aubuchon, E. D. Boland, D. C. Knapp, C. P. Barnes, and D. G. Simpson, Polym. Owing to its hydrolytic instability, however, its use has initially been limited. Pandey A(1), Pandey GC, Aswath PB. The solubilities of obtained copolymers also increased by increasing side chain length of epoxides in the polymer backbone. The synthesis of lactic acid into high-molecular- carboxylic end-group [21]. 2010, 1 (2010). ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. Synthesis of polyglycolic acid copolymers from cationic copolymerization of C1 feedstocks and long chain epoxides. Both PGAs were characterized for thermal decomposition kinetic studies using thermaogravimetric analysis (TGA), to investigate the effect of end-group and molecular weight on thermal degradation behavior. Crystallographic structure of PGA was confirmed by XRD and the resulting PGA polymer was similar in thermal degradation to that of commercially available polyglycolide (Kuredux), synthesized by ring opening polymerization. 2004). Y. Chatani, K. Suehiro, Y. Kita, H. Tadokoro, and K. Chujo, Die Makromol. M. Epple and O. Herzberg, J. Ayyoob, M., Lee, D.H., Kim, J.H. Chem., 47, 1440 (2009). V. Singh and M. Tiwari, Int. 100, 267 (1967). Chemie, abstract = "This article reviews various methods of synthesizing polycondensation and ring-opening polymerization and modifying properties of polylactic acid (PLA), which may be used as biomaterials, such as a drug carrier in a drug delivery system, as a cell scaffold and suture in tissue engineering, and as packaging materials in packaging engineering field. 45, 3583 (2004). Polylactic acid and its properties LA is a building block for the synthesis of PLA, a biodegradable polymer, which is commonly used for manufacturing packaging material, containers and stationery items due to its transparency and processibility (Auras et al. Res., Correspondence to Consequently, Kissinger’s method, Flynn and Walls method and the dynamic experiment method reveal that the thermal decomposition behavior of polyglycolic acids and polyglycolide is similar, regardless of end groups and synthetic routes which is supposed to be random chain cession.

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