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Surfactant softenin...
Surfactant softening of plant leaf cuticle model wax : a Differential Scanning Calorimetry (DSC) and Quartz Crystal Microbalance with Dissipation (QCM-D) study
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- Fagerström, Anton (författare)
- Malmö högskola,Institutionen för biomedicinsk vetenskap (BMV)
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- Kocherbitov, Vitaly (författare)
- Malmö högskola,Institutionen för biomedicinsk vetenskap (BMV)
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Westbye, Peter (författare)
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Bergström, Karin (författare)
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- Arnebrant, Thomas (författare)
- Malmö högskola,Institutionen för biomedicinsk vetenskap (BMV)
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- Engblom, Johan (författare)
- Malmö högskola,Institutionen för biomedicinsk vetenskap (BMV)
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(creator_code:org_t)
- Elsevier, 2014
- 2014
- Engelska.
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Ingår i: Journal of Colloid and Interface Science. - : Elsevier. - 0021-9797 .- 1095-7103. ; 426, s. 22-30
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The aim was to quantify the softening effect that two surfactants (C10EO7 and C8G1.6) have on a plant leaf cuticle model wax. Effects on the thermotropic phase behavior and fluidity of the wax (C22H45OH/C32H66/H2O) were determined. The model wax is crystalline at ambient conditions, yet it is clearly softened by the surfactants. Both surfactants decreased the transition temperatures in the wax and the G″/G' ratio of the wax film increased in irreversible steps following surfactant exposure. C10EO7 has a stronger fluidizing effect than C8G1.6 due to stronger interaction with the hydrophobic waxes. Intracuticular waxes (IW) comprise both crystalline and amorphous domains and it has previously been proposed that the fluidizing effects of surfactants are due to interactions with the amorphous parts. New data suggests that this may be a simplification. Surfactants may also absorb in crevices between crystalline domains. This causes an irreversible effect and a softer cuticle wax.
Nyckelord
- Crystalline domains
- Differential Scanning Calorimetry (DSC
- Fluidizing effect
- Plant leaf cuticle
- Quartz Crystal Microbalance with Dissipation (QCM-D)
- Surfactant softening
- Wax film
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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