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Self-Assembly of Amphiphilic Triblock Terpolymers Mediated by Multifunctional Organic Acids : Vesicles, Toroids, and (Undulated) Ribbons

Title data

Betthausen, Eva ; Hanske, Christoph ; Müller, Melanie ; Pochan, Darrin J. ; Fery, Andreas ; Schacher, Felix H.:
Self-Assembly of Amphiphilic Triblock Terpolymers Mediated by Multifunctional Organic Acids : Vesicles, Toroids, and (Undulated) Ribbons.
In: Macromolecules. Vol. 47 (March 2014) Issue 5 . - pp. 1672-1683.
ISSN 0024-9297
DOI: https://doi.org/10.1021/ma402555c

Official URL: Volltext

Abstract in another language

The self-assembly of block copolymers in the presence of additives represents an elegant strategy to adjust micellar morphologies in solution and to design complex structures that are not accessible otherwise. Herein, we use linear ABC triblock terpolymers comprising a polyamine block: polybutadiene-block-poly(tert-butyl methacrylate)-block-poly(2-(dimethylamino)ethyl methacrylate) (PB-b-PtBMA-b-PDMAEMA) terpolymers coassembled with organic di- or triacids in mixtures of THF and water. The interactions between the organic multiacids and the hydrophilic PDMAEMA block can be adjusted via the chain architecture, amount, and functionality of added acid, the solvent quality, and the PDMAEMA block length. Consequently, these parameters allow a certain level of control over the resulting micellar morphology. Characterization by (cryogenic) transmission electron microscopy and atomic force microscopy revealed the formation of spherical, disk-shaped, and toroidal structures, alongside ribbons featuring enlarged end-caps. In the latter case, changing the solvent composition or the amount/type of organic diacid induced the formation of undulated ribbons and, eventually, partition into spherical particles.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Former Professors > Chair Physical Chemistry II - Univ.-Prof. Dr. Andreas Fery
Research Institutions > Collaborative Research Centers, Research Unit > SFB 840 Von partikulären Nanosystemen zur Mesotechnologie
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Physical Chemistry II
Research Institutions
Research Institutions > Collaborative Research Centers, Research Unit
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Former Professors
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 500 Natural sciences
500 Science > 530 Physics
500 Science > 540 Chemistry
Date Deposited: 05 Dec 2014 09:58
Last Modified: 05 Dec 2014 09:58
URI: https://eref.uni-bayreuth.de/id/eprint/3927