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Thermal Transport in Ampholytic Polymers : The Role of Hydrogen Bonding and Water Uptake

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00005746
URN to cite this document: urn:nbn:de:bvb:703-epub-5746-9

Title data

Hummel, Patrick ; Lechner, Anna M. ; Herrmann, Kai ; Biehl, Philip ; Rössel, Carsten ; Wiedenhöft, Lisa ; Schacher, Felix H. ; Retsch, Markus:
Thermal Transport in Ampholytic Polymers : The Role of Hydrogen Bonding and Water Uptake.
Bayreuth , 2020 . - 32 S.
DOI der Verlagsversion: https://doi.org/10.1021/acs.macromol.0c00596

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Name: accpted_version_Ampholytic_Polymers.pdf
Version: Accepted Version
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Abstract

The low thermal conductivity of amorphous polymers typically prevents their usage in thermal management applications. Therefore, increasing their intrinsic thermal conductivity poses an exciting scientific challenge. One approach is to promote attractive interchain interactions. Here, we investigate the thermal conductivity of several ampholytic polymers. This unique class of polymers offers H bond donor and acceptor groups in each repeat unit and constitutes a one-component system. We use IR spectroscopy to characterize the bonding strength and motifs based on the carbonyl peak. For the dry ampholytic polymers, we find a correlation between H bond strength and thermal conductivity. We also characterized the influence of hydration under various relative humidity conditions, which mostly led to an increase in thermal conductivity. This increase can be rationalized by the formation of a water–polymer nanocomposite material and can be described by volume-weighted mixing models.

Further data

Item Type: Preprint, postprint
Additional notes (visible to public): Erscheint in: Macromolecules. Bd. 53 (24 Juni 2020) Heft 13 . - S. 5528-5537
This document is the Accepted Manuscript version of a Published Work that appeared in final form in Macromolecules, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see Macromolecules 2020, 53, 13, 5528–5537, Publication Date:June 24, 2020
https://doi.org/10.1021/acs.macromol.0c00596
Keywords: Thermal conductivity; Plastics; Carbonyls; Humidity; Polymers
DDC Subjects: 500 Science > 540 Chemistry
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Physical Chemistry I > Chair Physical Chemistry I - Univ.-Prof. Dr. Markus Retsch
Profile Fields > Advanced Fields > Polymer and Colloid Science
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions > Research Centres > Bayreuth Center for Colloids and Interfaces - BZKG
Research Institutions > Affiliated Institutes > Bavarian Polymer Institute (BPI)
Research Institutions > Collaborative Research Centers, Research Unit > SFB 840 Von partikulären Nanosystemen zur Mesotechnologie > SFB 840 - TP B 7
Research Institutions > EU Research Projects > VISIRday
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 Physical Chemistry I
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Research Institutions > Affiliated Institutes
Research Institutions > Collaborative Research Centers, Research Unit
Research Institutions > Collaborative Research Centers, Research Unit > SFB 840 Von partikulären Nanosystemen zur Mesotechnologie
Research Institutions > EU Research Projects
Language: English
Originates at UBT: Yes
URN: urn:nbn:de:bvb:703-epub-5746-9
Date Deposited: 23 Sep 2021 09:48
Last Modified: 23 Sep 2021 09:48
URI: https://epub.uni-bayreuth.de/id/eprint/5746

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