Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Videos

Filler-induced composition waves in phase-separating polymer blends.

B P Lee¹, J F Douglas, S C Glotzer

¹Polymers Division and Center for Theoretical and Computational Materials Science, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.

Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

|April 24, 2002

Summary

This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Molecular dynamics study of water channels in natural and synthetic amyloid-β fibrils.

The Journal of chemical physics·2021

Same author

Negligible senescence in naked mole rats may be a consequence of well-maintained splicing regulation.

GeroScience·2020

Same author

An ethical dilemma: malignant melanoma in a 51-year-old patient awaiting simultaneous kidney and pancreas transplantation for type 1 diabetes.

The British journal of dermatology·2016

Same author

Correction: Self-assembly of a space-tessellating structure in the binary system of hard tetrahedra and octahedra.

Soft matter·2016

Same author

Self-assembly of a space-tessellating structure in the binary system of hard tetrahedra and octahedra.

Soft matter·2016

Same author

Minority-spin t(2g) states and the degree of spin polarization in ferromagnetic metallic La(2-2x)Sr(1+2x)Mn(2)O(7) (x = 0.38).

Scientific reports·2013

Same journal

Efficient Monte Carlo simulations using a shuffled nested Weyl sequence random number generator.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·2002

Same journal

Spatiotemporal dynamics of electromagnetic pulses in saturating nonlinear optical media with normal group velocity dispersion.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·2002

Same journal

Soliton-breather reaction pathways.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·2002

Same journal

Calculation of electromagnetic properties of regular and random arrays of metallic and dielectric cylinders.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·2002

Same journal

Electromagnetic convective cells in a nonuniform dusty plasma.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·2002

Same journal

Stability of neural networks and solitons of field theory.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·2002

See all related articles

Immobile filler particles influence polymer blend phase separation by creating concentration waves around them. These patterns evolve into a background spinodal pattern in later stages, matching experimental observations.

Area of Science:

Materials Science
Polymer Science
Computational Modeling

Background:

Polymer blends exhibit phase separation, a critical phenomenon affecting material properties.
The presence of immobile filler particles can significantly alter this phase separation process.
Understanding filler-particle interactions is key to controlling blend morphology.

Purpose of the Study:

To computationally investigate the influence of immobile filler particles on polymer blend phase separation.
To analyze the formation of concentration patterns around filler particles.
To compare simulation results with experimental data on filled blend films.

Main Methods:

Utilized a generalized Cahn-Hilliard-Cook (CHC) model for computational simulations.

Related Experiment Videos

Simulated blends with varying compositions (near-critical and far-off-critical).

Employed the linearized CHC model to estimate composition oscillations.

Main Results:

Selective polymer-filler affinity induces concentration waves ('target' patterns) around particles in near-critical blends.
These target patterns are superseded by a background spinodal pattern in later stages.
Far-off-critical blends show an 'encapsulation layer' growth at the filler surface.

Conclusions:

Filler particles with selective affinity act as nucleation sites, directing early-stage phase separation.
The observed patterns are consistent with experimental findings in filled ultrathin blend films.
Computational modeling provides a valuable tool for predicting filler effects on blend morphology.