1 / 6

Core-Shell Particle Model: Concentration Effects in Pluronic Spherical Micelles

Explore the cross-section structure factor and fit results of P85 Pluronic micelles in solvent regions, shedding light on the core-shell particle model with hard-core interactions. Material balance equation reveals micelle details.

phudspeth
Télécharger la présentation

Core-Shell Particle Model: Concentration Effects in Pluronic Spherical Micelles

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chapter 44 – SANS FROM A PLURONIC 44:3. THE CORE-SHELL PARTICLE MODEL 44:4. CONCENTRATION EFFECTS 44:5. FIT RESULTS 44:7. RESULTS FOR THE 10 % P85 IN D2O AT 40 oC

  2. RA A RB B 44:3. THE CORE-SHELL PARTICLE MODEL Single-particle: Spherical Bessel function:

  3. 44:4. CONCENTRATION EFFECTS Structure factor: Hard sphere interactions (Percus-Yevick): Where: Cross section:

  4. 44:5. FIT RESULTS

  5. solvent region C shell region B In the core: 2,392 PO monomers 1,648 EO monomers 1,213 D2O molecules core region A In the shell: 1,462 EO monomers 38,642 D2O molecules = 6.400*10-6 Å-2 = 5.940*10-6 Å-2 = 7.563*10-7 Å-2 RA = 43.96 Å RB = 72.91 Å 44:7. RESULTS FOR THE 10 % P85 IN D2O AT 40 oC

  6. COMMENTS -- P85 Pluronic is formed of a triblock PEO-PPO-PEO. -- P85 Pluronic forms micelles above the Critical Micelle Temperature (CMT). -- Spherical micelles contain PPO core (hydrophobic) and PEO shell (hydrophilic). -- Core-shell form factor and hard-core interaction potential yield model for the cross section. -- Material balance equation gives detailed results about the spherical micelles.

More Related