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

Computer simulation of microphase separation in ionic copolymers.

M Banaszak1, J H Clarke

  • 1Chemistry Department, UMIST, Manchester M60 1QD, United Kingdom.

Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
|April 24, 2002
PubMed
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

Meat quality traits and fatty acid composition of breast muscles from ducks fed with yellow lupin.

Animal : an international journal of animal bioscience·2020
Same author

Interstitial micelles in binary blends of ABA triblock copolymers and homopolymers.

Physical review. E·2018
Same author

Towards entropy-driven interstitial micelles at elevated temperatures from selective A1BA2 triblock solutions.

Physical review. E·2016
Same author

N-acetylcysteine pretreatment attenuates paraquat-induced lung leak in rats.

Redox report : communications in free radical research·2016
Same author

Simulations on a swollen gyroid nanostructure in thin films relevant to systems of ionic block copolymers.

The European physical journal. E, Soft matter·2014
Same author

Intraglobular structures in multiblock copolymer chains from a Monte Carlo simulation.

Physical review. E, Statistical, nonlinear, and soft matter physics·2011
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

Molecular dynamics simulations reveal that counterion condensation in neutral-ionic block copolymers forms perforated lamella structures. This influences counterion diffusion, which becomes anisotropic below the order-disorder transition.

Area of Science:

  • Polymer Science
  • Materials Science
  • Computational Chemistry

Background:

  • Neutral-ionic block copolymers exhibit complex phase behavior crucial for advanced materials.
  • Understanding the order-disorder transition (ODT) is key to controlling polymer morphology.
  • Counterion behavior significantly impacts the self-assembly and properties of ionic polymers.

Purpose of the Study:

  • To investigate the formation of lamella microphases in symmetric neutral-ionic block copolymers.
  • To characterize the order-disorder transition (ODT) using molecular dynamics simulations.
  • To analyze the role of counterions in microphase formation and diffusion.

Main Methods:

  • Constant volume-constant temperature (NVT) molecular-dynamics computer simulations.

Related Experiment Videos

  • Utilized a generic coarse-grain model for neutral-ionic block copolymers.
  • Analyzed counterion diffusion, pressure tensor, and structure factor anisotropy.

    • Main Results:

    • Strong counterion condensation observed on ionic blocks above the ODT.
    • Formation of a perforated lamella structure due to slight volume imbalance.
    • Counterion diffusion becomes decoupled from chain motion and anisotropic below the ODT.
    • High counterion mobility linked to a low glass transition temperature of ionic blocks.

    Conclusions:

    • Counterion condensation is a critical factor in dictating microphase morphology in these systems.
    • The observed perforated lamella structure and anisotropic diffusion highlight the influence of ionic interactions.
    • The study provides insights into the relationship between molecular structure, dynamics, and macroscopic properties.