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

Melting kinetics in polymers.

D R Lippits1, S Rastogi, G W H Höhne

  • 1The Dutch Polymer Institute/Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.

Physical Review Letters
|June 29, 2006
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

Synergy between Paenibacillus lentimorbus and Pseudomonas putida mediates ecological benefit to chickpea by decrementing Fusarium oxysporum f. sp. ciceris.

Plant biology (Stuttgart, Germany)·2026
Same author

Beyond the throat: Imaging of parapharyngeal space lesions.

Clinical radiology·2024
Same author

Bench-to-bedside imaging in brain metastases: a road to precision oncology.

Clinical radiology·2024
Same author

Clinicopathological Profile and Survival Outcomes in Patients with Localised Extremity Synovial Sarcomas.

Clinical oncology (Royal College of Radiologists (Great Britain))·2024
Same author

Novel trial designs for patients with gastrointestinal stromal tumor.

ESMO open·2024
Same author

Post-treatment imaging of gliomas: challenging the existing dogmas.

Clinical radiology·2023

Polymer single crystals melt by segment detachment. Chains with topological constraints require higher temperatures or longer times to detach and melt, indicating distinct melting behaviors.

Area of Science:

  • Polymer science
  • Materials science
  • Physical chemistry

Background:

  • Polymers can form single crystals from single chains.
  • Melting of these crystals involves chain segment detachment and diffusion into the melt.

Purpose of the Study:

  • To investigate the complexities in polymer crystal melting when chains are shared between crystals.
  • To differentiate melting processes based on activation energies and topological constraints.

Main Methods:

  • Experimental observation of polymer crystal melting.
  • Analysis of activation energies for chain segment detachment.
  • Comparison of melting behaviors for free vs. constrained chain segments.

Main Results:

Related Experiment Videos

  • Distinct melting processes were observed, correlating with activation energy differences.
  • Free chain segments detached at the predicted melting temperature (Gibbs-Thomson equation).
  • Chains with topological constraints required significantly higher temperatures or longer times for detachment.

    • Conclusions:

    • The melting behavior of polymer single crystals is influenced by topological constraints.
    • Activation energy analysis reveals differences between unhindered and constrained chain segment detachment.
    • Understanding these melting dynamics is crucial for polymer processing and material design.