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(AB)n Segmented Copolyetherimides for 4D Printing

Title data

Jin, Minde ; Stihl, Markus ; Giesa, Reiner ; Neuber, Christian ; Schmidt, Hans-Werner:
(AB)n Segmented Copolyetherimides for 4D Printing.
In: Macromolecular Materials and Engineering. Vol. 306 (2021) Issue 1 . - No. 2000473.
ISSN 1439-2054
DOI: https://doi.org/10.1002/mame.202000473

Official URL: Volltext

Abstract in another language

Abstract The fourth dimension in 4D printing comprises the ability of materials to recover their shape with time by utilizing 3D printing in combination with shape memory polymers. The focus of this work is on 3D printing of physically crosslinked thermoplastic polymers, which allow a reversible transformation from a temporary to an original shape by an external stimulus temperature, thus realize 4D printing. In this context, (AB)n segmented copolyetherimides consisting of perylene and poly(ethylene glycol) (PEG) segments are synthesized and characterized regarding their thermal and rheological properties in view of 3D printing. The perylene imide segments act as reversible physical crosslinks which disassemble between 100 and 200 °C. The PEG segments exhibit a low melting temperature around 40 to 60 °C and are semi-crystalline at room temperature. The results show that this type of (AB)n segmented copolyetherimide combines reliable 3D printing performance, which is indicated by low warp deformation and excellent interlayer bonding. With a blend of two copolymers, it is able to realize 4D printing.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: 3D printing; 4D printing; (AB)n segmented copolymers; Extrusion-based additive manufacturing; Shape memory
Institutions of the University: Faculties
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 > Chair Macromolecular Chemistry I
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry I > Chair Macromolecular Chemistry I - Univ.-Prof. Dr. Hans-Werner Schmidt
Profile Fields > Advanced Fields > Polymer and Colloid Science
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions
Research Institutions > Affiliated Institutes
Research Institutions > Affiliated Institutes > Bavarian Polymer Institute (BPI)
Profile Fields
Profile Fields > Advanced Fields
Result of work at the UBT: Yes
DDC Subjects: 500 Science
500 Science > 540 Chemistry
Date Deposited: 11 Dec 2020 07:29
Last Modified: 16 Feb 2021 06:40
URI: https://eref.uni-bayreuth.de/id/eprint/60966