Abstract
Well-defined surface chemistry and retained nanofibrillar
structure are crucial for gaining full performance of
nanocellulosic materials in modern material science.
Nevertheless there is evidence that pure never-dried
cellulose surfaces become contaminated and
nanofibrillated cellulose (NFC) aggregates when in
contact with air or other aprotic media, and as a
consequence the efficient use of the cellulosic material
is hampered. The aim of this work was to create a link
between surface chemistry and surface accessibility of
NFC. We demonstrate the effect of the amphiphilic nature
of cellulose on the interactions with various solvents.
For this purpose X-ray photoelectron spectroscopy, atomic
force microscopy and contact angle measurements are
combined. Special focus is laid on the changes in surface
energy of cellulose in different media. The findings are
general for cellulosic samples but critical for efficient
surface modification and use of NFC in various
applications and thus the experimental examples are on
NFC.
Original language | English |
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Title of host publication | 243rd ACS National Meeting & Exposition |
Publisher | American Chemical Society ACS |
Publication status | Published - 2012 |
Event | 243rd ACS National Meeting and Exposition - San Diego, United States Duration: 25 Mar 2012 → 29 Mar 2012 Conference number: 243 |
Publication series
Series | Abstracts of Papers: The American Chemical Society |
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Volume | 243 |
ISSN | 0065-7727 |
Conference
Conference | 243rd ACS National Meeting and Exposition |
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Country/Territory | United States |
City | San Diego |
Period | 25/03/12 → 29/03/12 |