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Controlling the Organization of PEDOT:PSS on Cellulose Structures
Linkoping Univ, Dept Sci & Technol, Lab Organ Elect, S-60174 Norrkoping, Sweden.;RISE Acreo, RISE Res Inst Sweden, Div ICT, S-60117 Norrkoping, Sweden..
Tech Univ Denmark, Dept Energy Convers & Storage, DK-4000 Roskilde, Denmark..
Linkoping Univ, Dept Phys Chem & Biol, S-58183 Linkoping, Sweden..
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology. KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Centres, Wallenberg Wood Science Center.
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2019 (English)In: ACS APPLIED POLYMER MATERIALS, ISSN 2637-6105, 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 are actively 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-ethylene-dioxythiophene):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 GIVVAXS measurements show that when mixed with 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 of PEDOT: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
AMER CHEMICAL SOC , 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:kth:diva-261326DOI: 10.1021/acsapm.9b00444ISI: 000486361400010OAI: oai:DiVA.org:kth-261326DiVA, id: diva2:1358280
Note

QC 20191007

Available from: 2019-10-07 Created: 2019-10-07 Last updated: 2019-10-07Bibliographically approved

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Malti, AbdellahWågberg, Lars
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