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Polysaccharides and their related compounds are attracting much
attention because of their potential for the applications as new
functional materials in many research field such as medicines,
pharmaceutics, foods, and cosmetics. Therefore, precision synthesis
of new polysaccharides with well-defined structure is being
increasingly important. For this purpose, enzymatic method is a
very powerful tool because the reaction proceeds with highly
stereo- and regiocontrolled manners. This book focuses on advances
in the practical synthesis of polysaccharides by the
phosphorylase-catalyzed chain-elongation on the basis of the
viewpoint of polysaccharide engineering.
This book comprehensively covers researches on enzymatic
polymerization and related enzymatic approaches to produce
well-defined polymers, which is valuable and promising for
conducting green polymer chemistry. It consists of twelve chapters,
including the following topics: The three classes of enzymes,
oxidoreductases, transferases and hydrolases, have been employed as
catalysts for enzymatic polymerization and modification;
Well-defined polysaccharides are produced by enzymatic
polymerization catalyzed by hydrolases and transferases;
Hydrolase-catalyzed polycondensation and ring-opening
polymerization are disclosed to produce a variety of polyesters;
Polyesters are synthesized by in-vivo acyltransferase catalysis
produced by microorganisms; Enzymatic polymerization catalyzed by
appropriate enzymes also produces polypeptides and other polymers;
Poly(aromatic)s are obtained by enzymatic polymerization catalyzed
by oxidoreductases and their model complexes; Such enzymes also
induce oxidative polymerization of vinyl monomers; Enzymatic
modification of polymers is achieved to produce functionalized
polymeric materials; The enzymatic polymerization is a green
process with non-toxic catalysts, high catalyst efficiency, green
solvents and renewable starting materials, and minimal by-products;
Moreover, renewable resources like biomass are potentially employed
as a starting substrate, producing useful polymeric materials. This
book is not only educative to young polymer chemists like graduate
students but also suggestive to industrial researchers, showing the
importance of the future direction of polymer synthesis for
maintaining a sustainable society.
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