Study of enzyme-catalysed polymerization of lactic acid by HPLC and MALDI-MS

Szakács-Schmidt, A.; Albert, Levente; Kelemen-Horváth, I.

doi:10.1002/(sici)1099-0801(199905)13:3<252::aid-bmc826>3.0.co;2-x

Cited by 7 publications

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References 6 publications

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“…In the lipase CR-catalyzed polymerization of racemic 10-hydroxyundecanoic acid, the resulting oligomer was enriched in the ( S )-enantiomer to a level of 60% ee and the residual monomer was recovered with a 33% ee favoring the antipode . Lipase CA catalyzed the polymerization of lactic acid to give the corresponding oligomer with DP up to 9, in which the R -enantiomer possessed higher enzymatic reactivity . Optically active oligomers (DP < 6) were also synthesized from racemic ε-substituted-ε-hydroxy esters using PPL catalyst .…”

Section: Polycondensation Of Oxyacid Derivativesmentioning

confidence: 99%

Enzymatic Polymerization

2001

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Section: Polycondensation Of Oxyacid Derivativesmentioning

confidence: 99%

Enzymatic Polymerization

2001

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Enzymatic Polymerization

Kobayashi¹,

Uyama²

2001

Encyclopedia of Polymer Science and Technology

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This article deals with recent advances in enzymatic polymerizations, defined as chemical polymer synthesis in vitro (in test tubes) via nonbiosynthetic pathways catalyzed by an isolated enzyme. The principal target macromolecules via the enzymatic polymerization are polysaccharides, poly(amino acid)s, polyesters, polycarbonates, polyaromatics, and vinyl polymers. For synthesis of polysaccharides, poly(amino acid)s, polyesters, and polycarbonates, hydrolases are used as catalyst; hydrolases, enzymes catalyzing a bond‐cleavage reaction by water, induce the reverse reaction of hydrolysis, leading to polymer production by a bond‐forming reaction. Specific enzyme catalysis provides a novel synthetic route for not only natural biopolymers such as cellulose, xylan, and chitin, but also unnatural polysaccharides, polyesters, poly(amino acid)s, and polycarbonates, many of which are difficult to be synthesized by conventional methodologies. Oxidoreductases act as catalyst for oxidative polymerization of phenol, aniline, and their derivatives, for polymer modification via oxidative coupling, and for production of vinyl polymers. A new class of phenolic polymers are synthesized without use of toxic formaldehyde under mild reaction conditions. Enzyme‐model complexes also catalyze the synthesis of new phenolic polymer materials.

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Enzymatic Polymerization to Polyesters

Kobayashi

Uyama

2002

Biopolymers Online

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Introduction Historical Outline Ring‐opening Polymerization of Cyclic Monomers Polymerization of Lactones Polymerization of Other Cyclic Monomers Copolymerization of Cyclic Monomers Single‐step Synthesis of End‐functionalized Polyesters Polymerization of Dicarboxylic Acid Derivatives and Glycols Polyester Synthesis from Dicarboxylic Acids Polyester Synthesis from Dicarboxylic Acid Esters Polyester Synthesis from Acid Anhydride Derivatives Polycarbonate Synthesis by Enzymatic Polycondensation Polycondensation of Hydroxyacid Derivatives Lipase‐catalyzed Modification of Polymers Relevant Patents Outlook and Perspectives

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Study of enzyme-catalysed polymerization of lactic acid by HPLC and MALDI-MS

Cited by 7 publications

References 6 publications

Enzymatic Polymerization

Enzymatic Polymerization

Enzymatic Polymerization

Enzymatic Polymerization to Polyesters

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