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Direct Synthesis of High-Molecular Polymers of Lactic Acid

By David Mikulík

Abstract

This master thesis deals with the direct synthesis of polymers from lactic acid. The theoretical part focuses on both natural and synthetic ways of production the lactic acid monomer, their advantages and properties. Furthermore, the theoretical part focuses on the synthesis of poly(lactic acid) (PLA) from lactide, and direct polycondensation from lactic acid discussing about influences of catalysts, co-catalysts as well as chain extenders. The experimental part focuses on the synthesis of PLA polymers and co-polymers wherein investigates suitable catalysts, reaction medium for azeotropic dehydration and co-catalyst influence on products. Thermal and analytical analysis of PLA polymers are mentioned at the end of the experimental part

Topics: laktid; catalysts; extendéry řetězce; kokatalyzátor; co-catalyst; melting point; Kyselina mléčná; polycondensation; crystallinity; lactide; co-polymerization; katalyzátory; molekulová hmotnost; poly(kyselina mléčná); teplota tání; poly(lactid acid); polykondenzace; chain extenders; krystalinita; molecular weight; Lactic acid
Publisher: Vysoké učení technické v Brně. Fakulta chemická
Year: 2016
OAI identifier: oai:invenio.nusl.cz:240586
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