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

Polymer Classification: Architecture01:14

Polymer Classification: Architecture

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...
Step-Growth Polymerization: Overview01:03

Step-Growth Polymerization: Overview

Step-growth or condensation polymerization is a stepwise reaction of bi or multifunctional monomers to form long-chain polymers. As all the monomers are reactive, most of the monomers are consumed at the early stages of the reaction to form small chains of reactive oligomers, which then combine to form long polymer chains in the late stages. Hence, the reaction has to proceed for a long time to achieve high molecular weight polymers.
Many natural and synthetic polymers are produced by...
Polymer Classification: Crystallinity01:21

Polymer Classification: Crystallinity

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...
Polymers02:34

Polymers

The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the properties that they exhibit. Additionally,...
Polymers02:34

Polymers

The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the properties that they exhibit. Additionally,...
Polymers02:34

Polymers

The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the properties that they exhibit. Additionally,...

También podría leer

Artículos Relacionados

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

Ordenar por
Same author

Crude oil fractionation by means of mesoporous polyacrylonitrile membranes.

Nature·2026
Same author

A Lens into the Cu Nanograin by <i>In Situ</i> Vibrational Spectroscopy.

Journal of the American Chemical Society·2026
Same author

Flexible metamaterials with near-infrared chirality fabricated by 1D multi-pen tip-based lithography.

Nanoscale·2026
Same author

A photochargeable semiconductor for highly efficient dehydrogenative coupling of amines.

Nature chemistry·2026
Same author

Who's getting care? Acute treatment utilization following an emergency department visit among adults with major psychiatric disorders and suicidal thoughts and behaviors.

Journal of psychiatric research·2026
Same author

ALD-Derived WO<sub>3-<i>x</i></sub> Leads to Nearly Wake-Up-Free Ferroelectric Hf<sub>0.5</sub>Zr<sub>0.5</sub>O<sub>2</sub> at Elevated Temperatures.

ACS applied electronic materials·2026
Same journal

Linker Engineering toward NIR-II Metal-Organic Framework with Maximal Emission beyond 1000 nm for Inflammatory Bowel Disease Imaging.

Journal of the American Chemical Society·2026
Same journal

Observing Kinetic Selectivity in Anthracene Photodimerization through Selective Quenching by Excited States of Proximate Rare Earth Cations.

Journal of the American Chemical Society·2026
Same journal

Sequence-Dependent Folding of Recognition-Encoded Melamine Oligomers.

Journal of the American Chemical Society·2026
Same journal

Large Thermo- and Mechanosalient Actuation via Cooperative Twist Elasticity-Induced Packing Motif Conversion.

Journal of the American Chemical Society·2026
Same journal

Discovery and Biosynthesis of Lanthipeptides Featuring an Azepinoindole Scaffold by Radical <i>S</i>-Adenosylmethionine Enzyme-Catalyzed C-C Bond Formation.

Journal of the American Chemical Society·2026
Same journal

Enantiopurity-Controlled Magnetism in a Two-Dimensional Organic-Inorganic Material.

Journal of the American Chemical Society·2026
Ver todos los artículos relacionados

Video Experimental Relacionado

Updated: Jun 10, 2026

Synthesis and Characterization of Self-Assembled Metal-Organic Framework Monolayers Using Polymer-Coated Particles
06:48

Synthesis and Characterization of Self-Assembled Metal-Organic Framework Monolayers Using Polymer-Coated Particles

Published on: June 14, 2024

Estructuras de matriz de partículas flexibles mediante el control de la arquitectura de injerto de polímero.

Jihoon Choi1, Hongchen Dong, Krzysztof Matyjaszewski

  • 1Department of Materials Science and Engineering, 5000 Forbes Avenue, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.

Journal of the American Chemical Society
|August 24, 2010
PubMed
Resumen
Este resumen es generado por máquina.

La síntesis de cepillos de partículas utilizando polimerización radical de transferencia atómica iniciada en la superficie crea matrices ordenadas. Estas matrices exhiben una mayor resistencia y flexibilidad debido a las grietas similares a los polímeros de las cadenas entrelazadas.

Más Videos Relacionados

Easy Manipulation of Architectures in Protein-based Hydrogels for Cell Culture Applications
08:50

Easy Manipulation of Architectures in Protein-based Hydrogels for Cell Culture Applications

Published on: August 4, 2017

Fabrication of Anisotropic Polymeric Artificial Antigen Presenting Cells for CD8+ T Cell Activation
10:16

Fabrication of Anisotropic Polymeric Artificial Antigen Presenting Cells for CD8+ T Cell Activation

Published on: October 12, 2018

Videos de Experimentos Relacionados

Last Updated: Jun 10, 2026

Synthesis and Characterization of Self-Assembled Metal-Organic Framework Monolayers Using Polymer-Coated Particles
06:48

Synthesis and Characterization of Self-Assembled Metal-Organic Framework Monolayers Using Polymer-Coated Particles

Published on: June 14, 2024

Easy Manipulation of Architectures in Protein-based Hydrogels for Cell Culture Applications
08:50

Easy Manipulation of Architectures in Protein-based Hydrogels for Cell Culture Applications

Published on: August 4, 2017

Fabrication of Anisotropic Polymeric Artificial Antigen Presenting Cells for CD8+ T Cell Activation
10:16

Fabrication of Anisotropic Polymeric Artificial Antigen Presenting Cells for CD8+ T Cell Activation

Published on: October 12, 2018

Área de la Ciencia:

  • Química de Polímeros La Química de Polímeros es la química de los polímeros.
  • Ciencia de los materiales Ciencia de los materiales.
  • Nanotecnología La nanotecnología es la nanotecnología.

Sus antecedentes:

  • Los cepillos de partículas son conjuntos de cadenas de polímero injertadas en superficies de partículas.
  • El control de la conformación de la cadena es crucial para ajustar las propiedades del material.
  • La polimerización radical por transferencia atómica (ATRP) es una técnica versátil para la síntesis de polímeros.

Objetivo del estudio:

  • Para sintetizar cepillos de partículas con conformaciones de cadena controladas utilizando ATRP. iniciado por superficie.
  • Investigar la relación entre la conformación de la cadena y las propiedades mecánicas de los conjuntos de partículas.
  • Comprender los mecanismos de fractura en los sistemas de cepillado de polímero semilíquido.

Principales métodos:

  • Se empleó la polimerización radical por transferencia atómica (ATRP) iniciada en la superficie.
  • Los cepillos de partículas se sintetizaron con diferentes fracciones de cadenas extendidas y relajadas.
  • Se analizaron las propiedades mecánicas y el comportamiento de fractura de las matrices de partículas.

Principales resultados:

  • Se logró una síntesis controlada de cepillos de partículas con conformaciones de cadena sintonizables.
  • Se formaron estructuras de matriz de partículas ordenadas y compatibles con el plástico en el límite de pincel semilíquido.
  • Los enredos de la cadena indujeron grietas similares a las de los polímeros, mejorando significativamente la tenacidad y la flexibilidad.

Conclusiones:

  • El ATRP iniciado por la superficie permite un control preciso de la arquitectura de cepillo de partículas.
  • Las cadenas de polímero enredadas en conjuntos de partículas conducen a mecanismos de endurecimiento únicos.
  • Estos hallazgos ofrecen vías para diseñar materiales robustos y flexibles basados en partículas.