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Controlling the Organization of PEDOT:PSS on Cellulose Structures
Linköping University, Sweden.
DTU Technical University of Denmark, Denmark.
Linköping University, Sweden.
KTH Royal institute of Technology, Sweden.
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2019 (English)In: ACS Applied Polymer Materials, Vol. 1, no 9, p. 2342-2351Article in journal (Refereed) Published
Abstract [en]

Composites of biopolymers and conducting polymers are emerging as promising candidates for a green technological future and areactively being explored in various applications, such as in energy storage ,bioelectronics, and thermoelectrics. While the device characteristics of these composites have been actively investigated, there is limited knowledge concerning the fundamental intracomponent interactions and the modes of molecular structuring. Here, by use of cellulose and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), it is shown that the chemical and structural makeup of the surfaces of the composite components are critical factors that determine the materials organization at relevant dimensions. AFM, TEM, and GIWAXS measurements show that when mixedwith cellulose nanofibrils, PEDOT:PSS organizes into continuous nanosized beadlike structures with an average diameter of 13 nm on the nanofibrils. In contrast, when PEDOT:PSS is blended with molecular cellulose, a phase-segregated conducting network morphology is reached, with a distinctly relatively lower electric conductivity. These results provide insight into the mechanisms ofPEDOT:PSS crystallization and may have significant implications for the design of conducting biopolymer composites for a vast array of applications.

Place, publisher, year, edition, pages
2019. Vol. 1, no 9, p. 2342-2351
Keywords [en]
nanocomposites, biomaterials, PEDOT, nanotechnology, energy materials, cellulose
National Category
Polymer Chemistry
Identifiers
URN: urn:nbn:se:ri:diva-40216DOI: 10.1021/acsapm.9b00444OAI: oai:DiVA.org:ri-40216DiVA, id: diva2:1358463
Available from: 2019-10-07 Created: 2019-10-07 Last updated: 2019-10-09Bibliographically approved

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Håkansson, Karl

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CiteExportLink to record
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  • apa
  • harvard1
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