Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Bulk and interfacial properties of binary polymer mixtures.

P Bryk1, S Sokołowski

  • 1Department for the Modeling of Physico-Chemical Processes, Maria Curie-Skłodowska University, 0-031 Lublin, Poland. pawel@paco.umcs.lublin.pl

The Journal of Chemical Physics
|July 23, 2004
PubMed
Summary

This study uses microscopic density functional theory to explore polymer mixtures. It reveals how differences in polymer chain length and segment diameter drive phase separation, impacting critical properties and interfacial behavior.

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

Barriers to early detection: Insurance denials for breast MRI screening in women with germline BRCA1/2 mutations.

Gynecologic oncology·2025
Same author

Amphiphilic Dimers at Liquid-Liquid Interfaces: A Density Functional Approach.

The journal of physical chemistry. B·2019
Same author

Janus Dimers at Liquid-Liquid Interfaces.

The journal of physical chemistry. B·2019
Same author

Adsorption of hairy particles with mobile ligands: Molecular dynamics and density functional study.

The Journal of chemical physics·2018
Same author

Effective interactions between a pair of particles modified with tethered chains.

The Journal of chemical physics·2017
Same author

Self-assembly of Janus disks induced by small molecules in two-dimensional systems.

The Journal of chemical physics·2017

Area of Science:

  • Polymer Physics
  • Statistical Mechanics
  • Physical Chemistry

Background:

  • Understanding polymer mixture behavior is crucial for materials science.
  • Phase transitions in polymer systems are influenced by molecular architecture.
  • Microscopic theories provide insights into macroscopic properties.

Purpose of the Study:

  • To investigate demixing transitions in binary polymer mixtures using a microscopic density functional theory.
  • To analyze the influence of chain length and segment diameter on phase equilibria.
  • To study interfacial properties and their relation to critical phenomena.

Main Methods:

  • Application of microscopic density functional theory.
  • Evaluation of bulk fluid phase equilibria (binodal) and spinodal limits.

Related Experiment Videos

  • Calculation of density profiles across the fluid-fluid interface.

    • Main Results:

    • Demixing transitions were observed due to differences in chain length and segment diameter.
    • Critical properties (packing fraction, mole fraction, pressure) were analyzed with increasing chain length.
    • Interfacial tension vanishes as (Deltarho)^3 near the critical point, indicating mean-field behavior.

    Conclusions:

    • Microscopic density functional theory successfully models polymer mixture demixing.
    • The theory captures the relationship between molecular parameters and macroscopic phase behavior.
    • The observed interfacial tension behavior confirms the mean-field nature of the applied theory.