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Title: Effect of Block Length and Side Chain Length Ratios on Determining a Multicompartment Micelle Structure

Abstract

Previous work has identified the importance of the lipophilic-fluorophilic block length ratio Rl in predicting the morphology of linear lipophilic-hydrophilic-fluorophilic (hereafter referred to as BAC) micelle systems. Here, a generalized form R of this structural parameter is developed that makes no assumption of BAC triblock copolymer linearity, while still providing accurate predictions of micelle morphology. Here, the morphologies of BAC micelles formed by triblock copolymers with R <<1 or R >>1 have similar features, with the only notable difference being an inversion of the lipophilic and fluorophilic regions. A destabilization of the single-core micelle structure occurs as R approaches unity from either direction. Finally, the extent to which micelle morphology depends on polymer architecture instead of composition alone is examined, with decreased patchiness observed in BAC systems with very long block lengths. Through modification of both the R-value and the polymer architecture, the micelle morphology can be effectively tuned for use in immobilized catalysis and nanoreactor applications.

Authors:
 [1];  [1];  [1];  [1]; ORCiD logo [1]
  1. Georgia Institute of Technology, Atlanta, GA (United States)
Publication Date:
Research Org.:
Georgia Inst. of Technology, Atlanta, GA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1657069
Grant/Contract Number:  
FG02-03ER15459
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Physical Chemistry. B, Condensed Matter, Materials, Surfaces, Interfaces and Biophysical Chemistry
Additional Journal Information:
Journal Volume: 123; Journal Issue: 22; Journal ID: ISSN 1520-6106
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 97 MATHEMATICS AND COMPUTING; Multicompartment Micelle; Effect of block length; Side chain length; Dissipative particle dynamics simulation; Polymers; Polymer morphology; Micelles; Morphology; Copolymers

Citation Formats

Callaway, Connor P., Lee, Seung Min, Mallard, Mackenzie, Clark, Benjamin, and Jang, Seung Soon. Effect of Block Length and Side Chain Length Ratios on Determining a Multicompartment Micelle Structure. United States: N. p., 2019. Web. doi:10.1021/acs.jpcb.9b02231.
Callaway, Connor P., Lee, Seung Min, Mallard, Mackenzie, Clark, Benjamin, & Jang, Seung Soon. Effect of Block Length and Side Chain Length Ratios on Determining a Multicompartment Micelle Structure. United States. doi:https://doi.org/10.1021/acs.jpcb.9b02231
Callaway, Connor P., Lee, Seung Min, Mallard, Mackenzie, Clark, Benjamin, and Jang, Seung Soon. Mon . "Effect of Block Length and Side Chain Length Ratios on Determining a Multicompartment Micelle Structure". United States. doi:https://doi.org/10.1021/acs.jpcb.9b02231. https://www.osti.gov/servlets/purl/1657069.
@article{osti_1657069,
title = {Effect of Block Length and Side Chain Length Ratios on Determining a Multicompartment Micelle Structure},
author = {Callaway, Connor P. and Lee, Seung Min and Mallard, Mackenzie and Clark, Benjamin and Jang, Seung Soon},
abstractNote = {Previous work has identified the importance of the lipophilic-fluorophilic block length ratio Rl in predicting the morphology of linear lipophilic-hydrophilic-fluorophilic (hereafter referred to as BAC) micelle systems. Here, a generalized form R of this structural parameter is developed that makes no assumption of BAC triblock copolymer linearity, while still providing accurate predictions of micelle morphology. Here, the morphologies of BAC micelles formed by triblock copolymers with R <<1 or R >>1 have similar features, with the only notable difference being an inversion of the lipophilic and fluorophilic regions. A destabilization of the single-core micelle structure occurs as R approaches unity from either direction. Finally, the extent to which micelle morphology depends on polymer architecture instead of composition alone is examined, with decreased patchiness observed in BAC systems with very long block lengths. Through modification of both the R-value and the polymer architecture, the micelle morphology can be effectively tuned for use in immobilized catalysis and nanoreactor applications.},
doi = {10.1021/acs.jpcb.9b02231},
journal = {Journal of Physical Chemistry. B, Condensed Matter, Materials, Surfaces, Interfaces and Biophysical Chemistry},
number = 22,
volume = 123,
place = {United States},
year = {2019},
month = {5}
}

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Cited by: 1 work
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