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

Block copolypeptides. 2. Viscoelastic properties

T Hayashi, J M Anderson, P A Hiltner

    Macromolecules
    |March 1, 1977
    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

    Changes in lipoprotein(a) levels measured by six kit methods during growth hormone treatment of growth hormone-deficient adults.

    Growth hormone & IGF research : official journal of the Growth Hormone Research Society and the International IGF Research Society·2001
    Same author

    Shear stress-induced apoptosis of adherent neutrophils: a mechanism for persistence of cardiovascular device infections.

    Proceedings of the National Academy of Sciences of the United States of America·2000
    Same author

    High molecular weight kininogen inhibition of endothelial cell function on biomaterials.

    Journal of biomedical materials research·2000
    Same author

    Monocyte adhesion to platelet concentrate storage bags and cytokine production.

    Vox sanguinis·2000
    Same author

    Early diagnosis of right ventricular or posterior infarction associated with inferior wall left ventricular acute myocardial infarction.

    The American journal of cardiology·2000
    Same author

    CaCo-2 cells treated with Clostridium perfringens enterotoxin form multiple large complex species, one of which contains the tight junction protein occludin.

    The Journal of biological chemistry·2000
    Same journal

    Customizing Ionic Micelles by Dynamic Coassembly of Sequence-Defined Peptoid Block Copolymers.

    Macromolecules·2026
    Same journal

    Investigating Polyethylene Solubility for Solvent-Based Recycling: Experiments and SAFT‑γ Mie Predictions.

    Macromolecules·2026
    Same journal

    Molecular Dynamics Simulations of the Structural and Thermodynamic Properties of Poly(<i>l</i>‑lactic acid) in the Presence of Water.

    Macromolecules·2026
    Same journal

    From Solvent-Mediated Micellization to Packing in a Face-Centered Cubic Structure of Poloxamers.

    Macromolecules·2026
    Same journal

    Nonlocal Effect of Percolated Particle Networks on Viscoelasticity of Polymer-Filler Nanocomposites: A Mesoscale Simulation Study.

    Macromolecules·2026
    Same journal

    Helicity of a confined bottlebrush ring polymer.

    Macromolecules·2026
    See all related articles

    Block copolypeptides of gamma-benzyl L-glutamate and L-leucine exhibit phase-separated structures. The polymer morphology depends on the sequence, with gamma-benzyl L-glutamate often forming the matrix phase.

    Area of Science:

    • Polymer Science
    • Materials Science
    • Biomaterials

    Background:

    • Block copolypeptides are advanced materials with tunable properties.
    • Understanding their solid-state structure is crucial for material design.
    • Gamma-benzyl L-glutamate (G) and L-leucine (L) are key amino acid building blocks.

    Purpose of the Study:

    • To investigate the solid-state structure of gamma-benzyl L-glutamate (G) and L-leucine (L) block copolypeptides.
    • To elucidate the morphology and phase behavior of these polymers.
    • To correlate polymer sequence with structural characteristics.

    Main Methods:

    • Dynamic mechanical analysis (DMA) was employed to study viscoelastic behavior.
    • Wide-angle X-ray diffraction (WAXD) was used to analyze solid-state structure.

    Related Experiment Videos

  • Equivalent mechanical models were utilized to interpret elastic modulus data.

    • Main Results:

    • WAXD patterns indicated overlapping reflections, characteristic of individual homopolymers.
    • Viscoelastic behavior provided further evidence for a phase-separated morphology.
    • GLG-type polymers showed G as the matrix phase, while LGL-type polymers exhibited some phase inversion.

    Conclusions:

    • The solid-state structure of G-L block copolypeptides is characterized by phase separation.
    • The morphology is sequence-dependent, with potential for phase inversion.
    • These findings contribute to the understanding of block copolypeptide self-assembly.