Technological challenges and advances: From lactic acid to polylactate and copolymers

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorCoelho, Luciana Fontes-
Autor(es): dc.creatorBeitel, Susan Michelz-
Autor(es): dc.creatorContiero, Jonas-
Data de aceite: dc.date.accessioned2025-08-21T20:42:25Z-
Data de disponibilização: dc.date.available2025-08-21T20:42:25Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2019-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/B978-0-12-816901-8.00005-5-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/230291-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/230291-
Descrição: dc.descriptionLactic acid is an organic acid that has been extensively used worldwide in a variety of industrial and biotechnological applications. Lactic acid can be obtained chemically or by microbial fermentation. Production by fermentation results in the formation of d(-) or l(+) lactic acid, or racemic mixture, depending on the microorganism used. Pure isomers present specific industrial applications from the polymerization of such monomers; different types of lactic acid polymers (PLA) are formed. The properties of PLA depend on the proportion of enantiomers, which enable the production of polymers with different characteristics directed to specific applications. There are three pathways for producing PLA from lactic acid; direct polymerization and polymerizations by lactide ring opening are the most widely used techniques. The degree of crystallinity and many other important properties, such as strength and melting point, are controlled by the ratio of enantiomers used in the polymers. l(+) lactic acid is used for the synthesis of poly(l-lactic acid) (PLLA), a semicrystalline, biodegradable polymer, with potential application in the packaging industry and in medical products. Poly(d, l-lactic acid), a polymer consisting of two isomers, is degraded more rapidly due to its amorphous structure. PLA has been considered as one of the most promising biodegradable plastics due to it having physical characteristics similar to polymers derived from nonrenewable sources, such as elasticity, stiffness, transparency, thermoresistance, biocompatibility, and good moldability.-
Descrição: dc.descriptionDepartment of Biochemistry and Microbiology Institute Bioscience São Paulo State University (UNESP)-
Descrição: dc.descriptionAssociate Laboratory IPBEN-UNESP-
Descrição: dc.descriptionDepartment of Biochemistry and Microbiology Institute Bioscience São Paulo State University (UNESP)-
Descrição: dc.descriptionAssociate Laboratory IPBEN-UNESP-
Formato: dc.format117-153-
Idioma: dc.languageen-
Relação: dc.relationMaterials for Biomedical Engineering: Hydrogels and Polymer-based Scaffolds-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBioplastics-
Palavras-chave: dc.subjectGreen chemistry-
Palavras-chave: dc.subjectLactic acid-
Palavras-chave: dc.subjectPoly(lactic acid)-
Palavras-chave: dc.subjectPolymerization-
Título: dc.titleTechnological challenges and advances: From lactic acid to polylactate and copolymers-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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