Journal
LANGMUIR
Volume 31, Issue 44, Pages 12170-12176Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.langmuir.5b01763
Keywords
-
Funding
- Academy of Finland [259500]
- Aalto University (Aalto University Starting Grant)
- WoodWisdom-Net (Tunable Films project)
- Academy of Finland (AKA) [259500, 259500] Funding Source: Academy of Finland (AKA)
Ask authors/readers for more resources
Despite the relevance of water interactions, explicit analysis of vapor adsorption on biologically derived surfaces is often difficult. Here, a system was introduced to study the vapor uptake on a native polysaccharide surface; namely, cellulose nanocrystal (CNC) ultrathin films were examined with a quartz crystal microbalance with dissipation monitoring (QCM-D) and spectroscopic ellipsometry (SE). A significant mass uptake of water vapor by the CNC films was detected using the QCM-D upon increasing relative humidity. In addition, thickness changes proportional to changes in relative humidity were detected using SE. Quantitative analysis of the results attained indicated that in preference to being soaked by water at the point of hydration each individual CNC in the film became enveloped by a 1 nm thick layer of adsorbed water vapor, resulting in the detected thickness response.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available