Synthesis of Polyamides and Their Copolymers via Enzymatic Polymerization

Stavila, Erythrina; Loos, Katja

doi:10.7569/jrm.2015.634102

Cited by 20 publications

(14 citation statements)

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“…Candida antarctica lipase B (CALB) has been exploited for preparing polyesters from diols and dicarboxylic acids 123. Other classes of polymers that can be obtained with hydrolases include: polycarbonates from diols and carbonic acid diesters,124 poly(amino acid)s from protease‐aided polymerization of amino acid esters,125 polyamides from dicarboxylic acids and diamines,126 and poly(thioesters) from ω‐mercapto‐carboxylic acids or cyclic thioesters 127. For further information, the interested reader is directed to reviews by Heise et al102a and Kobayashi et al,30,102b in which enzymatic polymerizations are excellently covered in much detail.…”

Section: Green Synthesis Of Inorganic–organic Hybrid Materialsmentioning

confidence: 99%

Green Synthesis of Inorganic–Organic Hybrid Materials: State of the Art and Future Perspectives

Unterlass

2016

Eur J Inorg Chem

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The term "inorganic-organic hybrid materials" designates inorganic building blocks in the colloidal domain (1-1000 nm) embedded in an organic, typically polymeric, matrix. Owing to their outstanding properties, hybrid materials have the potential to improve human life significantly. In the last two decades, the importance of reorienting chemical syntheses in the direction of more sustainable, less harmful and energy-consuming procedures, referred to as green chemistry, has been[a] defines a hybrid material as a "material composed of an intimate mixture of inorganic components, organic components, or both types of components", noting that "the components typically interpenetrate on scales of less than 1 μm". [6] This definition includes, for example, polymer-polymer composites (aka blends), metal-metal composites, metal-ceramic composites, metal-polymer, and ceramic-polymer composites. The plethora of powerful hybrid materials cannot be covered in one review article. This paper will thus focus on one subclass of hybrid materials: namely, inorganic-organic hybrid materials in which the amount of organic polymeric component is a majority over that of the inorganic component. Note that the term "composite" historically tends to be associated with macroscopic hybrid materials with the dispersed phase typically greater than 1 mm. Others associate "composite" with hybrid materials in which the components interact through noncovalent bonding, and "hybrids" with cases in which the components are connected by covalent bonding. [7] In recent years, this distinction has faded more and more, and both terms are often used interchangeably. This review addresses exclusively inorganic-organic hybrid materials with the minor component in the colloidal range, and the term "composite" is used occasionally.Depending on the strength of interaction between the dispersed inorganic phase and the organic matrix, hybrid materials are commonly subdivided into two categories. [2] In class I hybrid materials there are weak interactions -namely, van der Waals (vdW), hydrogen bonding, and electrostatic interactions -between the components (Scheme 1, a). [2] Class II hybrid materials display strong bonding (i.e., covalent or iono-covalent interactions, Scheme 1, b; [2] iono-covalent interactions are covalent bonds with a considerable ionic character often found, e.g., in binary or mixed metal oxides). [8] In class II hybrids, the strong Eur.

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Section: Green Synthesis Of Inorganic–organic Hybrid Materialsmentioning

confidence: 99%

Green Synthesis of Inorganic–Organic Hybrid Materials: State of the Art and Future Perspectives

Unterlass

2016

Eur J Inorg Chem

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“…At present, 4 EC enzyme classes, including oxidoreductases (EC 1), transferases (EC 2), hydrolases (EC 3) and ligases (EC 6), are frequently used to catalyze or induce polymerizations. 23 Polymer classes produced via enzymatic polymerizations include vinyl polymers, 24,25 polysaccharides, 26 polyesters, 19,22 polyamides, [27][28][29] and so on. 21,23 In principle, enzymes that can catalyze the formation of amide bonds are suitable biocatalysts for the synthesis of polyamides.…”

mentioning

confidence: 99%

“…21,23 In principle, enzymes that can catalyze the formation of amide bonds are suitable biocatalysts for the synthesis of polyamides. 27,29 Currently, hydrolases such as proteases, esterases (especially lipases) and other enzymes, are commonly applied for the biocatalytic synthesis of polypeptides and synthetic polyamides. Among hydrolases, Candida antarctica lipase b (CALB), especially its immobilized formulation Novozym®435 (N435), is the primary enzyme catalyst used for enzymatic polyamide synthesis, as it possesses a broad substrate specicity, high selectivity, and excellent and stable catalytic activity.…”

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confidence: 99%

Enzymatic synthesis of 2,5-furandicarboxylic acid-based semi-aromatic polyamides: enzymatic polymerization kinetics, effect of diamine chain length and thermal properties

et al. 2016

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“…As natural polymer materials, proteins are both biocompatible and readily biodegradable; interestingly, the synthetic polyamides (PAs) that are based on the same amide bonds (also called peptide bonds in proteins) are barely degradable. It is well known that proteins are formed using chiral amino acids as monomers, with the only exception of glycine that is achiral; so, chemically, proteins are PAs, while monomers of synthesized polyamides are achiral amino acids or diacids and diamines [ 7 , 8 ]. Such differences suggest that the chirality of nature may play an essential role in biodegradation of polymers [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Homochirality of Dipeptide to Polymers’ Degradation

Yang

et al. 2020

Polymers

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As natural polymer materials, proteins are readily biodegradable, interestingly, the synthetic polyamides (PAs) that are based on the same amide bonds (also called peptide bonds in proteins) are barely degradable. Whether did the chirality and configuration of the amino acids play an important role. By using different configuration of amino acids, 4 types of polyamide-imides (PAIs) containing dipeptides of LL, DL, LD, and DD configurations, respectively, were synthesized. It was found that the PAIs based on natural LL configuration of dipeptide structure are much more readily biodegradable than those based on non-natural LD, DL, and DD configuration of dipeptides. It was confirmed that the natural L-configuration of amino acids play a critical role in degradability of proteins. And it also suggested that different type and amount of peptide fragments can be introduced in polymer to create series of polymer materials that can be biodegraded at controllable speed.

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Synthesis of Polyamides and Their Copolymers via Enzymatic Polymerization

Cited by 20 publications

References 0 publications

Green Synthesis of Inorganic–Organic Hybrid Materials: State of the Art and Future Perspectives

Green Synthesis of Inorganic–Organic Hybrid Materials: State of the Art and Future Perspectives

Enzymatic synthesis of 2,5-furandicarboxylic acid-based semi-aromatic polyamides: enzymatic polymerization kinetics, effect of diamine chain length and thermal properties

Effect of Homochirality of Dipeptide to Polymers’ Degradation

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