Biocatalysis in Novel Polymers from Bio-Resources

Oxidoreductases Transferases Hydrolases Phenolic polymers, polyanilines, vinyl polymers Polysaccharides, cyclic oligosaccharides, polyesters Polysaccharides, polyesters, polycarbonates, poly(amino acid)s, polyphosphates [Pg.113]

DuPont is instead producing 1,3-propanediol (PDO) from corn sugar rather than petroleum feedstocks. PDO is a key component of DuPont s new Sorona 3GT polymer. Other examples of microbial polymers under study are polyhydroxyalk-anoates and Y-poly(glutamic acid). [Pg.113]

Studies on enzyme-catalyzed polymerization ( enzymatic polymerization ) has been of increasing importance as a new trend in macromolecular science. Enzyme catalysis has provided a new synthetic strategy for useful polymers, most of which are difficult to produce by conventional chemical catalysts. Enzymatic polymerization also affords a great opportunity for use of nonpetrochemical renewable resources as starting substrates of functional polymeric materials (as shown in the industrial examples cited above). [Pg.113]

In enzymatic polymerizations the product polymers can be obtained under mild reaction conditions without using toxic reagents. Therefore, enzymatic polymerization has great potential as an environmentally friendly synthetic process of polymeric materials, providing a good example of achieving sustainable polymer chemistry. [Pg.113]

Enzymes are generally classified into six groups. Table 2.6 shows typical polymers produced with catalysis by respective enzymes. The target macromolecules for enzymatic polymerization have been polysaccharides, poly(amino acid)s, polyesters, polycarbonates, phenolic polymers, poly(aniline)s, vinyl polymers, and so on. [Pg.113]