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Synthesis of Lactic Acid-based Polymers

Regardless of the methods used to synthesise lactic acid-based polymers, the monomers must be purified [34]. The ring-opening polymerisation of lactides can be initiated or catalysed by many compounds acting via different general mechanisms. Protic acids (hydrobromic acid (HBr), hydrochloric acid (HCl), triflic acid and so on). [Pg.305]

Combined with the influence of molecular mass on polymer properties, the various routes offer means of obtaining degradable polymeric compounds ranging from wax to hard solids, having a lifetime from a few weeks to several years in aqueous media, and being amorphous or semicrystalline. A number of chemicals and complexes can [Pg.306]


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