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Title: Dynamic Control over Aqueous Poly(butadiene- b-ethylene oxide) Self-Assembly through Olefin Metathesis

Abstract

Here, we show that olefin metathesis can be used in an extremely simple process to rapidly alter the morphology of self-assembled poly(butadiene-b-ethylene oxide) (PB–PEO) dispersions in situ. The addition of a water-insoluble Hoveyda–Grubbs catalyst to aqueous assemblies of PB–PEO leads to degradation of the hydrophobic PB block by well-established metathesis pathways and a concomitant change in the composition of the block copolymer. This phenomenon drives morphological transitions characterized by rapidly decreasing sizes of the self-assembled aggregates, the ultimate extent of which is readily controlled by catalyst concentration. Exemplary cases are presented in which transitions from worm-like micelles to spherical micelles or from vesicles to worm-like micelles can be accomplished within minutes.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [2];  [1]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1465387
Alternate Identifier(s):
OSTI ID: 1484666
Report Number(s):
SAND-2018-8649J; LA-UR-18-28617
Journal ID: ISSN 0024-9297; 666957
Grant/Contract Number:  
AC04-94AL85000; 89233218CNA000001
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Macromolecules
Additional Journal Information:
Journal Volume: 51; Journal Issue: 17; Journal ID: ISSN 0024-9297
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; Material Science

Citation Formats

Jones, Brad H., Bachand, George D., Shin, Sun Hae Ra, Firestone, Millicent A., and Paxton, Walter F. Dynamic Control over Aqueous Poly(butadiene-b-ethylene oxide) Self-Assembly through Olefin Metathesis. United States: N. p., 2018. Web. doi:10.1021/acs.macromol.8b01417.
Jones, Brad H., Bachand, George D., Shin, Sun Hae Ra, Firestone, Millicent A., & Paxton, Walter F. Dynamic Control over Aqueous Poly(butadiene-b-ethylene oxide) Self-Assembly through Olefin Metathesis. United States. doi:10.1021/acs.macromol.8b01417.
Jones, Brad H., Bachand, George D., Shin, Sun Hae Ra, Firestone, Millicent A., and Paxton, Walter F. Thu . "Dynamic Control over Aqueous Poly(butadiene-b-ethylene oxide) Self-Assembly through Olefin Metathesis". United States. doi:10.1021/acs.macromol.8b01417. https://www.osti.gov/servlets/purl/1465387.
@article{osti_1465387,
title = {Dynamic Control over Aqueous Poly(butadiene-b-ethylene oxide) Self-Assembly through Olefin Metathesis},
author = {Jones, Brad H. and Bachand, George D. and Shin, Sun Hae Ra and Firestone, Millicent A. and Paxton, Walter F.},
abstractNote = {Here, we show that olefin metathesis can be used in an extremely simple process to rapidly alter the morphology of self-assembled poly(butadiene-b-ethylene oxide) (PB–PEO) dispersions in situ. The addition of a water-insoluble Hoveyda–Grubbs catalyst to aqueous assemblies of PB–PEO leads to degradation of the hydrophobic PB block by well-established metathesis pathways and a concomitant change in the composition of the block copolymer. This phenomenon drives morphological transitions characterized by rapidly decreasing sizes of the self-assembled aggregates, the ultimate extent of which is readily controlled by catalyst concentration. Exemplary cases are presented in which transitions from worm-like micelles to spherical micelles or from vesicles to worm-like micelles can be accomplished within minutes.},
doi = {10.1021/acs.macromol.8b01417},
journal = {Macromolecules},
issn = {0024-9297},
number = 17,
volume = 51,
place = {United States},
year = {2018},
month = {8}
}

Journal Article:
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