2015
DOI: 10.1016/j.eurpolymj.2015.07.002
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Thickness dependence of the porosity of PPy/DDS films

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Cited by 6 publications
(4 citation statements)
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References 33 publications
(56 reference statements)
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“…RSAXS revealed the ionic domain spacing ( d -spacing = 2π/ q p,max , where q p corresponding to the ionic domain spans between 1.5 and 3.5 nm –1 ). In addition, a subsequent least-squares fit of the ionic domain peaks using in Nanosolver , (a built-in software of Rigaku Smartlab Diffractometer) gave the average size of ionic domains ( d id ) in all ionomer films at dry and humid conditions, where the experimentally calculated d -spacing for a film was used as an input parameter. By analyzing the nanoscale morphology (of the dry ionomer films using bright-field transmission electron microscopy), water uptake (λ w , quartz crystal microbalance), pH (fluorescence), proton concentration (fluorescence), and ionic domain size (fluorescence, RSAXS) within ionomer films, we rationalized the observed extent of proton conduction ( I d / I p ) in sub-μm thick ionomer films, and evaluated the most important parameters impacting the proton conduction under nanoconfinement.…”
Section: Introductionmentioning
confidence: 99%
“…RSAXS revealed the ionic domain spacing ( d -spacing = 2π/ q p,max , where q p corresponding to the ionic domain spans between 1.5 and 3.5 nm –1 ). In addition, a subsequent least-squares fit of the ionic domain peaks using in Nanosolver , (a built-in software of Rigaku Smartlab Diffractometer) gave the average size of ionic domains ( d id ) in all ionomer films at dry and humid conditions, where the experimentally calculated d -spacing for a film was used as an input parameter. By analyzing the nanoscale morphology (of the dry ionomer films using bright-field transmission electron microscopy), water uptake (λ w , quartz crystal microbalance), pH (fluorescence), proton concentration (fluorescence), and ionic domain size (fluorescence, RSAXS) within ionomer films, we rationalized the observed extent of proton conduction ( I d / I p ) in sub-μm thick ionomer films, and evaluated the most important parameters impacting the proton conduction under nanoconfinement.…”
Section: Introductionmentioning
confidence: 99%
“…53 This fact is related to the polymer chain opening and, consequently, the increase in the pores present in the films. In parallel, the literature 73 shows a dependence between thickness and porosity of polypyrrole and dodecyl sulfate films. Thus, the film thicknesses must be considered, as they indirectly influence the permeability coefficient.…”
Section: Drug Permeation Proceduresmentioning
confidence: 88%
“…where is the porosity. Taking the porosity of NPG of ∼ 0.7 and PPy film density of ρ PPy = 1.5 g/cm 3 [65,66], τ was estimated to be 1.08, 1.10, and 1.17 for NPG, NPG/PPy(10 nm), and NPG/PPy(30 nm), respectively. As has been reported, the change in Poisson's ratio of nanoporous gold with ligament size of 120∼180 nm, which embraces the ligament size in the present work, was smaller than 0.025 when the NPG was compressed up to 20% [67].…”
Section: Discussionmentioning
confidence: 99%