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Cylindrical micelles from the living crystallization-driven self-assembly of poly(lactide)-containing block copolymers
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Petzetakis, Nikos, Dove, Andrew P. and O'Reilly, Rachel K. (2011) Cylindrical micelles from the living crystallization-driven self-assembly of poly(lactide)-containing block copolymers. Chemical Science, Vol.2 (No.5). pp. 955-960. doi:10.1039/c0sc00596g ISSN 2041-6520.
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Official URL: http://dx.doi.org/10.1039/C0SC00596G
Abstract
The synthesis and self-assembly of poly(lactide)-b-poly(acrylic acid) and poly(lactide)-b-poly(dimethylaminoethylacrylate) block copolymers by a combination of ring-opening polymerization and reverse-addition fragmentation chain transfer (RAFT) polymerization is reported. Self-assembly of block copolymers containing enantiopure homochiral poly(lactide), PLA, by a simple direct dissolution methodology results in core-crystallization to afford micelles with a cylindrical morphology. Amorphous atactic PLA cores and conditions that did not promote crystallization resulted in spherical micelles. Cylindrical micelles were characterized by transmission electron microscopy (TEM) with cryo-TEM, small angle neutron scattering (SANS) and angular dependent dynamic light scattering (DLS) proving that the cylindrical morphology was persistent in solution. Manipulation of the assembly conditions enabled the length and dispersity of the resultant cylindrical micelles to be controlled.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QD Chemistry T Technology > TA Engineering (General). Civil engineering (General) |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||
Library of Congress Subject Headings (LCSH): | Micelles, Diblock copolymers, Light -- Scattering, Self-assembly (Chemistry), Nanostructured materials, Stereochemistry, Polymerization | ||||
Journal or Publication Title: | Chemical Science | ||||
Publisher: | Royal Society of Chemistry | ||||
ISSN: | 2041-6520 | ||||
Official Date: | May 2011 | ||||
Dates: |
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Volume: | Vol.2 | ||||
Number: | No.5 | ||||
Page Range: | pp. 955-960 | ||||
DOI: | 10.1039/c0sc00596g | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Funder: | Engineering and Physical Sciences Research Council (EPSRC), Research Councils UK (RCUK) , Advantage West Midlands (AWM) , European Regional Development Fund (ERDF) | ||||
Grant number: | EP/G004897/1 (EPSRC) | ||||
Version or Related Resource: | Petzetakis, N., et al. (2011). Cylindrical micelles from the living crystallization-driven self-assembly of Poly(lactide)-containing block copolymers. American Chemical Society. Abstracts of Papers (at the National Meeting), 242, meeting abstract no. 78-PMSE. http://wrap.warwick.ac.uk/id/eprint/41991 | ||||
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