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

Power laws in polymer solution dynamics.

T Uematsu1, C Svanberg, M Nydén

  • 1Department of Applied Physics, Chalmers University of Technology, SE-412 96 Göteborg, Sweden. uematsu@fy.chalmers.se

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|December 20, 2003
PubMed
Summary

Researchers studied polymer solutions and found distinct concentration-dependent behaviors. These findings challenge existing models for concentrated polymer solutions, offering new insights into polymer dynamics.

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

Correlation of postoperative thickening of the sinus mucosa in cone beam computed tomography with decreased voxel brightness of the regenerated bone after sinus floor augmentation: a prospective study.

International journal of oral and maxillofacial surgery·2025
Same author

Graphene oxide/waterborne polyurethane nanocoatings: effects of graphene oxide content on performance properties.

Journal of coatings technology and research·2020
Same author

Microstructure of a granular amorphous silica ceramic synthesized by spark plasma sintering.

Journal of microscopy·2016
Same author

Polymerization of room-temperature ionic liquid monomers by electron beam irradiation with the aim of fabricating three-dimensional micropolymer/nanopolymer structures.

Langmuir : the ACS journal of surfaces and colloids·2014
Same author

Estimation of mass thickness response of embedded aggregated silica nanospheres from high angle annular dark-field scanning transmission electron micrographs.

Journal of microscopy·2014
Same author

Erratum to: Hydrodynamic dispersion in β-lactoglobulin gels measured by PGSE NMR.

The European physical journal. E, Soft matter·2011

Area of Science:

  • Polymer Science
  • Solution Chemistry
  • Physical Chemistry

Background:

  • Understanding polymer solution behavior is crucial for materials science.
  • Concentration effects on polymer chain interactions are complex.
  • Existing models for concentrated solutions may be oversimplified.

Purpose of the Study:

  • To investigate the dynamical screening length in poly(methyl methacrylate) solutions.
  • To identify and characterize concentration-dependent regimes in polymer solutions.
  • To experimentally validate predicted crossovers in polymer solvent behavior.

Main Methods:

  • Photon correlation spectroscopy (PCS).
  • Pulsed field gradient nuclear magnetic resonance (PFG-NMR).
  • Analysis of dynamical screening length (xi(h)) as a function of polymer volume fraction (phi).

Related Experiment Videos

Main Results:

  • Observed crossovers in concentration dependence of dynamical screening length (xi(h) ~ phi(-alpha)) with alpha values of approximately 0.5, 1, and 2.
  • Experimental validation of crossovers between marginal and theta solvent behavior (alpha=0.5 to 1).
  • Identification of a new regime (alpha=2) in highly concentrated solutions, suggesting limitations of the rigid rod model.

Conclusions:

  • The study provides experimental evidence for predicted crossovers in polymer solution behavior.
  • The rigid rod model is an oversimplification for concentrated polymer solutions, valid only at very high concentrations.
  • A flexible rodlike segment model is proposed for highly concentrated polymer solutions.