A spectroscopic approach to assess transport properties of water vapor in PLA. (July 2015)
- Record Type:
- Journal Article
- Title:
- A spectroscopic approach to assess transport properties of water vapor in PLA. (July 2015)
- Main Title:
- A spectroscopic approach to assess transport properties of water vapor in PLA
- Authors:
- De Santis, Felice
Gorrasi, Giuliana
Pantani, Roberto - Abstract:
- Abstract: The aim of this work is to describe in detail an experimental approach to quantitatively investigate water vapor transport properties in Poly (lactic acid), PLA. The approach is based on in situ time resolved Fourier Transform Infrared Spectroscopy, FTIR, in transmission mode, and provides a mean for monitoring accurately the penetrant sorption kinetics. FTIR spectra were analyzed by a deconvolution procedure, and the area of a specific peak (at 3651 cm -1 ) was directly correlated to the amount of water inside the sample. The time evolution of this area was first normalized by using a peak uninfluenced by the amount of water and then interpolated to obtain the diffusivity parameter. The results were in good agreement with those obtained by more classical, and more complex microgravimetric methods.
- Is Part Of:
- Polymer testing. Volume 44(2015:Jun.)
- Journal:
- Polymer testing
- Issue:
- Volume 44(2015:Jun.)
- Issue Display:
- Volume 44 (2015)
- Year:
- 2015
- Volume:
- 44
- Issue Sort Value:
- 2015-0044-0000-0000
- Page Start:
- 15
- Page End:
- 22
- Publication Date:
- 2015-07
- Subjects:
- Poly(Lactic acid) -- FTIR -- Crystallinity -- Diffusivity -- Water vapor
Polymers -- Testing -- Periodicals
Polymères -- Tests -- Périodiques
620.1920287 - Journal URLs:
- http://www.sciencedirect.com/science/journal/01429418 ↗
http://www.elsevier.com/journals ↗ - DOI:
- 10.1016/j.polymertesting.2015.03.015 ↗
- Languages:
- English
- ISSNs:
- 0142-9418
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 6547.740500
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 9042.xml