Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Types of Step-Growth Polymers: Polyesters01:20

Types of Step-Growth Polymers: Polyesters

2.3K
The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
2.3K
Polymer Classification: Crystallinity01:21

Polymer Classification: Crystallinity

2.9K
Unlike ionic or small covalent molecules, polymers do not form crystalline solids due to the diffusion limitations of their long-chain structures. However, polymers contain microscopic crystalline domains separated by amorphous domains.
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
2.9K
Anionic Chain-Growth Polymerization: Overview01:20

Anionic Chain-Growth Polymerization: Overview

2.1K
The polymerization process that involves carbanion as an intermediate is called anionic polymerization. It is also a type of addition or chain-growth polymerization. Anionic polymerization gets initiated by a strong nucleophile such as an organolithium or a Grignard reagent. The most commonly used initiator for anionic polymerization is butyl lithium. Monomers involved in anionic polymerization must possess a vinyl group bonded to one or two electron-withdrawing groups. For instance,...
2.1K
Characteristics and Nomenclature of Homopolymers01:00

Characteristics and Nomenclature of Homopolymers

3.1K
Polymers that are made up of identical monomer units are called homopolymers. Only one repeating unit is involved in the construction of the homopolymer structure. For example, as depicted in Figure 1, polypropylene is a homopolymer constituted of propylene monomers. Here, the only repeating unit in the polymer chain is propylene.
3.1K
Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)00:53

Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)

2.0K
Acyclic diene metathesis polymerization or ADMET polymerization involves cross-metathesis of terminal dienes, such as 1,8-nonadiene, to give linear unsaturated polymer and ethylene. As ADMET is a reversible process, the formed ethylene gas must be removed from the reaction mixture to complete the polymerization process.
Similar to cross-metathesis, ADMET also involves the formation of metallacyclobutane intermediate by [2+2] cycloaddition of one of the double bonds of a terminal diene with...
2.0K
Polymer Classification: Architecture01:14

Polymer Classification: Architecture

2.8K
Polymers are classified as linear or branched on the basis of their chain architecture. The polymer chains in linear polymers have a long chain-like structure with minimal to no branching at all. Even if a polymer features large substituent groups on the monomer, which appear as branches to the skeleton, it is not considered a branched polymer. A branched polymer contains secondary polymer chains that arise from the main polymer chain. The branching occurs when the polymer growth shifts from...
2.8K

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Pushing the Limits of One-Dimensional NMR Spectroscopy for Automated Structure Elucidation Using Artificial Intelligence.

Journal of chemical information and modeling·2026
Same author

Transforming Waste Cooking Oil into Linear and Branched Polyethylene Mimics.

Journal of the American Chemical Society·2025
Same author

Membrane-free electrochemical production of acid and base solutions capable of processing ultramafic rocks.

Nature communications·2025
Same author

Enhancing Biopolyester Backbone Rigidity with an Asymmetric Furanic Monomer.

ACS sustainable chemistry & engineering·2025
Same author

Intermediate-Temperature Reverse Water-Gas Shift under Process-Relevant Conditions Catalyzed by Dispersed Alkali Carbonates.

JACS Au·2025
Same author

Thermal Ca<sup>2+</sup>/Mg<sup>2+</sup> exchange reactions to synthesize CO<sub>2</sub> removal materials.

Nature·2025

Video Experimental Relacionado

Updated: Aug 16, 2025

Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer
10:22

Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer

Published on: November 30, 2020

3.5K

Una poliamida furánica semicristalina hecha de materias primas renovables

Cristian P Woroch1, India W Cox1, Matthew W Kanan1

  • 1Department of Chemistry, Stanford University, 337 Campus Drive, Stanford, California 94305, United States.

Journal of the American Chemical Society
|December 27, 2022
PubMed
Resumen
Este resumen es generado por máquina.

Los investigadores desarrollaron una nueva poliamida semicristalina semiaromática (PAMF) a partir de ácido 5-aminometil-2-furoico (AMF) de base biológica y CO2. Este polímero sostenible exhibe excelentes propiedades térmicas y reciclabilidad, superando las limitaciones de las poliamidas furanicas anteriores.

Más Videos Relacionados

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers
08:12

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers

Published on: December 16, 2022

3.4K
Highly Stable, Functional Hairy Nanoparticles and Biopolymers from Wood Fibers: Towards Sustainable Nanotechnology
11:32

Highly Stable, Functional Hairy Nanoparticles and Biopolymers from Wood Fibers: Towards Sustainable Nanotechnology

Published on: July 20, 2016

12.1K

Videos de Experimentos Relacionados

Last Updated: Aug 16, 2025

Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer
10:22

Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer

Published on: November 30, 2020

3.5K
Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers
08:12

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers

Published on: December 16, 2022

3.4K
Highly Stable, Functional Hairy Nanoparticles and Biopolymers from Wood Fibers: Towards Sustainable Nanotechnology
11:32

Highly Stable, Functional Hairy Nanoparticles and Biopolymers from Wood Fibers: Towards Sustainable Nanotechnology

Published on: July 20, 2016

12.1K

Área de la Ciencia:

  • Química de los polímeros
  • Ciencias de los materiales
  • Polímeros sostenibles

Sus antecedentes:

  • Las poliamidas semiaromáticas (SAP) son polímeros de alto rendimiento típicamente derivados de productos petroquímicos.
  • El logro de la cristalinidad en los SAP de base biológica, particularmente aquellos que utilizan ácido furano-2,5-dicarboxílico (FDCA), ha sido un desafío, a menudo produciendo materiales amorfos.
  • Hay necesidad de polímeros renovables de alto rendimiento con propiedades deseables como la cristalinidad y la estabilidad térmica.

Objetivo del estudio:

  • Sintetizar y caracterizar una nueva poliamida semicristalina y parcialmente renovable.
  • Investigar el potencial de los monómeros derivados de la lignocelulosa para la creación de polímeros sostenibles de alto rendimiento.
  • Comprender las bases estructurales de la cristalinidad en los SAP furánicos.

Principales métodos:

  • Policondensación del ácido 5-aminometil-2-furoico (AMF) con CO2 para producir el ácido poli-aminometil-2-furoico (PAMF).
  • Caracterización de las propiedades térmicas del PAMF (temperaturas de transición al vidrio y de fusión).
  • Simulaciones de dinámica molecular para analizar las diferencias estructurales que influyen en la cristalinidad.

Principales resultados:

  • Se ha sintetizado con éxito PAMF semicristalino, un nuevo SAP derivado de AMF y CO2 de base biológica.
  • El PAMF exhibe temperaturas de transición de vidrio y de fusión comparables a las de los polímeros comerciales y superiores a las de los SAP furánicos anteriores.
  • Las simulaciones de MD indicaron que el enlace de hidrógeno intramolecular influye significativamente en la semicristalinidad de PAMF, a diferencia de los SAP amorfos basados en FDCA.

Conclusiones:

  • El ácido poli-aminometil-2-furoico (PAMF) representa un avance en el desarrollo de SAP de alto rendimiento, semicristalinos y de base biológica.
  • PAMF ofrece una alternativa sostenible a los polímeros basados en productos petroquímicos, con potencial para la copolimización y el reciclaje químico.
  • Comprender el papel del enlace de hidrógeno intramolecular proporciona ideas para el diseño de futuros polímeros cristalinos de base biológica.