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: Stereospecificity01:26

Polymer Classification: Stereospecificity

2.6K
Polymerization generates chiral centers along the entire backbone of a polymer chain. Accordingly, the stereochemistry of the substituent group has a significant effect on polymer properties. Polymers formed from monosubstituted alkene monomers feature chiral carbons at every alternate position in the polymer backbone. Relative to the predominant orientation of substituents at the adjacent chiral carbons, the polymer can exist in three different configurations: isotactic, syndiotactic, and...
2.6K
Variables Affecting Phosphorescence and Fluorescence01:26

Variables Affecting Phosphorescence and Fluorescence

585
Fluorescence and phosphorescence are essential phenomena in fields like analytical chemistry, biological imaging, and materials science, where they detect molecular properties and visualize cellular structures. Understanding the variables that influence these luminescent behaviors is crucial for maximizing accuracy and efficiency in their applications. These variables can broadly be grouped into chemical structure, solvent properties, and external conditions, each playing a distinct role in...
585
Polymer Classification: Crystallinity01:21

Polymer Classification: Crystallinity

3.1K
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...
3.1K
Polymer Classification: Architecture01:14

Polymer Classification: Architecture

2.9K
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...
2.9K
Free-Radical Chain Reaction and Polymerization of Alkenes02:35

Free-Radical Chain Reaction and Polymerization of Alkenes

8.1K
The conversion of alkenes to macromolecules called polymers is a reaction of high commercial importance. The structure of the polymer is defined by a repeating unit, while the terminal groups are considered insignificant. The average degree of polymerization represents the number of repeating units in the polymer molecule and is denoted by the subscript n.
8.1K

También podría leer

Artículos Relacionados

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

Ordenar por
Same author

Clusteroluminescent Monosaccharide, Oligosaccharide, and Polysaccharide.

ACS applied materials & interfaces·2026
Same author

Fluorescence mapping of atropisomer populations enabled by through-space conjugation.

Nature communications·2026
Same author

Synthesis of poly(ester disulfide)s from S<sub>8</sub>-involved step-growth addition polymerization at ambient temperature.

Nature communications·2026
Same author

Through-space conjugation-based luminophores: toward redder and more efficient emitters.

Chemical communications (Cambridge, England)·2026
Same author

Real-Time High-Definition Hyperspectral Endoscopy via Spatial-Temporal Low-Frequency-Stochastic Spectral Encoding.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

Iron-Catalyzed Synthesis of Unsymmetrical Disilanes.

Journal of the American Chemical Society·2026

Video Experimental Relacionado

Updated: Sep 5, 2025

Fabrication of White Light-emitting Electrochemical Cells with Stable Emission from Exciplexes
05:51

Fabrication of White Light-emitting Electrochemical Cells with Stable Emission from Exciplexes

Published on: November 15, 2016

8.1K

Polímeros alifáticos con clusteroluminiscencia de luz blanca

Bo Chu1, Haoke Zhang1,2,3, Kailuo Chen1

  • 1State Key Laboratory of Motor Vehicle Biofuel Technology, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.

Journal of the American Chemical Society
|July 7, 2022
PubMed
Resumen

Los investigadores desarrollaron los primeros poliésteres no conjugados lineales para la emisión de luz blanca de una sola molécula (SMWLE). El ajuste de la estructura del polímero ajusta el color y la eficiencia, ofreciendo un nuevo camino para materiales luminiscentes avanzados.

Más Videos Relacionados

Atom Transfer Radical Polymerization of Functionalized Vinyl Monomers Using Perylene as a Visible Light Photocatalyst
06:49

Atom Transfer Radical Polymerization of Functionalized Vinyl Monomers Using Perylene as a Visible Light Photocatalyst

Published on: April 22, 2016

11.9K
Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
06:55

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level

Published on: September 26, 2016

8.0K

Videos de Experimentos Relacionados

Last Updated: Sep 5, 2025

Fabrication of White Light-emitting Electrochemical Cells with Stable Emission from Exciplexes
05:51

Fabrication of White Light-emitting Electrochemical Cells with Stable Emission from Exciplexes

Published on: November 15, 2016

8.1K
Atom Transfer Radical Polymerization of Functionalized Vinyl Monomers Using Perylene as a Visible Light Photocatalyst
06:49

Atom Transfer Radical Polymerization of Functionalized Vinyl Monomers Using Perylene as a Visible Light Photocatalyst

Published on: April 22, 2016

11.9K
Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
06:55

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level

Published on: September 26, 2016

8.0K

Área de la Ciencia:

  • Química de los polímeros
  • Ciencias de los materiales
  • Optoelectrónica y sus derivados

Sus antecedentes:

  • La emisión de luz blanca de una sola molécula (SMWLE) es deseable para aplicaciones pero difícil de lograr con polímeros no conjugados.
  • Los clusteroluminógenos (CLgens) son polímeros luminiscentes no conjugados, pero su fabricación SMWLE sigue siendo difícil.

Objetivo del estudio:

  • Informar el primer poliéster no conjugado lineal que exhiba SMWLE.
  • Explorar las relaciones estructura-propiedad para la luminiscencia de racimo ajustable (CL) en estos poliésteres.

Principales métodos:

  • Síntesis de 24 poliésteres alifáticos no conjugados mediante la copolimización de epoxidos y anhídridos.
  • Estudios experimentales y computacionales para analizar los efectos estructurales en la eficiencia y el color del CL.
  • Investigación de las variaciones de la estructura monomérica (succínica, trans-MA, cis-MA, CA) y su impacto en las estructuras secundarias y la luminiscencia.

Principales resultados:

  • Se obtienen colores y eficiencia sintonizables mediante el ajuste de las estructuras primarias y secundarias de poliéster.
  • Se ha demostrado que la longitud de la cadena lateral influye en la eficiencia del CL sin alterar la longitud de onda.
  • Se demostró que la modificación del monómero (por ejemplo, a CA) induce cambios de estructura secundarios (helix a hoja) y desplazamientos al rojo de CL de 460 a 570 nm a través de interacciones π-π mejoradas a través del espacio.
  • Se obtiene SMWLE puro con coordenadas CIE (0,30, 0,32) utilizando poliésteres a base de CA.

Conclusiones:

  • Se estableció una nueva estrategia para la fabricación de materiales SMWLE a partir de poliésteres no conjugados.
  • Proporcionó información sobre el mecanismo de emisión de CL mediante la correlación de estructuras jerárquicas con propiedades ópticas.
  • Destacó el potencial de CLgens para aplicaciones ópticas avanzadas a través de la regulación estructural.