at Google ScholarTitle data
Qiang, Xiaolian ; Franzka, Steffen ; Dai, Xuezhi ; Gröschel, André H.:
Multicompartment Microparticles of SBT Triblock Terpolymers through 3D Confinement Assembly.
In: Macromolecules.
Vol. 53
(2020)
Issue 11
.
- pp. 4224-4233.
ISSN 1520-5835
DOI: https://doi.org/10.1021/acs.macromol.0c00806
Abstract in another language
Self-assembly of block copolymers in three-dimensional (3D) soft confinement has become a versatile method for the preparation of functional microparticles. While the morphological behavior of AB diblock copolymers in confinement is fairly well understood, only sporadic examples exist for ABC triblock terpolymers. Considering the more complex morphological space of terpolymers, a better understanding of their behavior in confinement would be desirable to gain access to a large variety of multicompartment microparticles (MMs). Here, we report on the 3D confinement self-assembly of MMs from a library of polystyrene-block-polybutadiene-block-poly(tert-butyl methacrylate) (PS-b-PB-b-PT or SBT) triblock terpolymers with widely different block volume fractions (ϕ), which can be mapped into a ternary microphase diagram. Equal-sized end blocks (ϕS ≈ ϕT) result in MMs with lamella–lamella (LL) morphology and a tulip-bulb or pinecone shape, irrespective of ϕB. For asymmetric end blocks (ϕS > ϕT) at low ϕB, prolate ellipsoids develop a hexagonally packed core–shell ring (HCR) morphology, which changes with increasing ϕB to a transition structure between HCR and a concentric sphere-in-lamella (CSL) morphology. Further increasing ϕB to ϕS ≈ ϕB at low ϕT, the structure transforms entirely to CSL in an onion-like shape. Selective cross-linking of the PB middle block and disassembly of the MMs give access to a variety of nanostructures such as core–shell rings, Janus nanobowls, and nanocups.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Institutions of the University: | Research Institutions > Central research institutes > Bayerisches Zentrum für Batterietechnik - BayBatt Research Institutions Research Institutions > Central research institutes Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Polymer Materials for Electrochemical Storage > Chair Polymer Materials for Electrochemical Storage - Univ.-Prof. Dr. André Gröschel |
| Result of work at the UBT: | No |
| DDC Subjects: | 500 Science > 540 Chemistry |
| Date Deposited: | 28 Jul 2023 07:28 |
| Last Modified: | 02 Aug 2023 07:53 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/86390 |