Journal ArticleDOI
Synthesis of organosiloxane copolymers using enzymatic polyesterification
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TLDR
In this paper, the effect of temperature, vacuum, enzyme activity and enzyme concentration on the reaction kinetics was investigated, and the results showed that the rate of product formation increased when the temperature was increased from 50 to 90°C.About:
This article is published in European Polymer Journal.The article was published on 2008-12-01. It has received 38 citations till now. The article focuses on the topics: Immobilized enzyme & Chemical kinetics.read more
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Silicone containing copolymers: Synthesis, properties and applications
Emel Yilgor,Iskender Yilgor +1 more
TL;DR: A comprehensive survey of the recent developments on the synthesis, properties and applications of silicone containing copolymers is provided in this paper, where the effect of silicone oligomer and organic segment structure and molecular weight on the morphology and surface and bulk properties of the resultant silicone containing polymeric network structures is also discussed.
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Expanding the organic toolbox: a guide to integrating biocatalysis in synthesis.
TL;DR: This critical review presents an introduction to biocatalysis for synthetic chemists, illustrating the breadth of applications for these powerful and selective catalysts in conducting key reaction steps of the past 5 years.
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Enzyme-catalysis breathes new life into polyester condensation polymerizations
TL;DR: This review describes an exciting technology that makes use of immobilized enzyme-catalysts for condensation polyester synthesis, which enables structure retention when polymerizing unstable monomers, circumvents the introduction of metals, and also provides selectivity that avoids protection-deprotection steps and presents unique options for structural control.
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Polymer synthesis by enzymatic catalysis.
TL;DR: This review will focus on recent developments in enzyme-catalyzed polymer synthesis in the areas of polysaccharides, polyesters, and polyaromatics, as well as polymer modification.
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A review on enzymatic polymerization to produce polycondensation polymers: The case of aliphatic polyesters, polyamides and polyesteramides
TL;DR: Enzymatic polymerization represents today an effective and preferable alternative to conventional chemically-catalyzed processes, and offers significant advantages, summarized in the applied mild reaction conditions mainly in terms of temperature and toxicity, and high selectivity of enzymes, resulting in improved quality/performance of end products.
References
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Journal ArticleDOI
Silicatein filaments and subunits from a marine sponge direct the polymerization of silica and silicones in vitro
Jennifer N. Cha,Katsuhiko Shimizu,Yan Zhou,Sean Christiansen,Bradley F. Chmelka,Galen D. Stucky,Daniel E. Morse +6 more
TL;DR: It is shown that the protein filaments and their constituent subunits comprising the axial cores ofsilica spicules in a marine sponge chemically and spatially direct the polymerization of silica and silicone polymer networks from the corresponding alkoxide substrates in vitro, under conditions in which such syntheses otherwise require either an acid or base catalyst.
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Silicatein α: Cathepsin L-like protein in sponge biosilica
TL;DR: Structural features of the cDNA sequence of silicatein α, the most abundant of these subunits, reveals that this protein is highly similar to members of the cathepsin L and papain family of proteases, suggesting the possibility of a dynamic role of the silicateins in silicification of the sponge spicule.
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Polymer Synthesis by In Vitro Enzyme Catalysis
TL;DR: Microbial polymers are synthesized from renewable low-cost feedstocks, and the polymerizations operate under mild process conditions with minimal environmental impact, providing products that, when disposed, can degrade to nontoxic products.
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Silicon biotechnology: harnessing biological silica production to construct new materials
TL;DR: Discovering the mechanisms governing biosilicification offers the prospect of developing environmentally benign routes to synthesize new silicon-based materials and to resolve the biological use of silicon in higher organisms.
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Enzymatic polymerization: A new method of polymer synthesis
TL;DR: This article describes the recent progress of enzymatic polymerization technique, developed mainly during this decade, which utilizes enzymes of hydrolases and oxidoreductases as catalysts.