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The significance of...
The significance of the zero-concentration diffusivity value obtained from integral desorption data
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- Hedenqvist, Mikael S. (författare)
- KTH,Polymerteknologi
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Doghieri, F. (författare)
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(creator_code:org_t)
- 2002
- 2002
- Engelska.
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Ingår i: Polymer. - 0032-3861 .- 1873-2291. ; 43:1, s. 223-226
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- n-Hexane zero-concentration diffusivity in high density polyethylene obtained 'indirectly' from integral desorption measurements using the free volume concept was compared with the zero-concentration diffusivity obtained directly at low-n-hexane activities using a quartz-ring system. The difference between the results obtained by the indirect and direct methods was within the experimental error. The concentration dependence of the diffusivity predicted by the Cohen-Turnll-Fujita free volume theory was in accordance with experimental data.
Nyckelord
- diffusion
- sorption
- desorption
- small-molecule penetrants
- free-volume
- coefficients
- polyethylene
- membranes
- kinetics
- polymers
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- ref (ämneskategori)
- art (ämneskategori)
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