{"title":"Mathematical Modeling for Continuous Reactive Extrusion of Poly Lactic Acid formation by Ring Opening Polymerization Considering Metal\/Organic Catalyst and Alternative Energies","authors":"Satya P. Dubey, Hrushikesh A. Abhyankar, Veronica Marchante, James L. Brighton, Bj\u00f6rn Bergmann","volume":98,"journal":"International Journal of Chemical and Molecular Engineering","pagesStart":329,"pagesEnd":334,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/10000629","abstract":"
PLA emerged as a promising polymer because of its
\r\nproperty as a compostable, biodegradable thermoplastic made from
\r\nrenewable sources. PLA can be polymerized from monomers
\r\n(Lactide or Lactic acid) obtained by fermentation processes from
\r\nrenewable sources such as corn starch or sugarcane. For PLA
\r\nsynthesis, ring opening polymerization (ROP) of Lactide monomer is
\r\none of the preferred methods. In the literature, the technique mainly
\r\ndeveloped for ROP of PLA is based on metal\/bimetallic catalyst (Sn,
\r\nZn and Al) or other organic catalysts in suitable solvent. However,
\r\nthe PLA synthesized using such catalysts may contain trace elements
\r\nof the catalyst which may cause toxicity. This work estimated the
\r\nusefulness and drawbacks of using different catalysts as well as effect
\r\nof alternative energies and future aspects for PLA production.<\/p>\r\n","references":"[1] S. Jacobsen, H.-G. Fritz, P.Deg\u00e9e, P.Dubois, and R.J\u00e9r\u00f4me, \u201cContinuous\r\nreactive extrusion polymerisation of L-lactide \u2015 an engineering view,\u201d\r\nMacromol. Symp., vol. 153, no. 1, pp. 261\u2013273, 2000.\r\n[2] K. Madhavan Nampoothiri, N. R. Nair, and R. P. John, \u201cAn overview of\r\nthe recent developments in polylactide (PLA) research,\u201d Bioresour.\r\nTechnol., vol. 101, no. 22, pp. 8493\u20138501, Nov. 2010.\r\n[3] P. Dubois, C. Jacobs, R. Jerome, and P. Teyssie, \u201cMacromolecular\r\nengineering of polylactones and polylactides. 4. Mechanism and kinetics\r\nof lactide homopolymerization by aluminum isopropoxide,\u201d\r\nMacromolecules, vol. 24, no. 9, pp. 2266\u20132270, Apr. 1991.\r\n[4] D. R. Witzke, R. Narayan, and J. J. 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