PMID- 16730019
OWN - NLM
STAT- MEDLINE
DCOM- 20070928
LR  - 20131121
IS  - 0021-9797 (Print)
IS  - 0021-9797 (Linking)
VI  - 301
IP  - 1
DP  - 2006 Sep 1
TI  - Surface characterization by XPS, contact angle measurements and ToF-SIMS of 
      cellulose fibers partially esterified with fatty acids.
PG  - 205-9
AB  - The topochemistry of the controlled heterogeneous esterification of cellulose 
      fibers with fatty acid chlorides of different chain length, both in swelling and 
      non-swelling media, was assessed by X-ray Photoelectron Spectroscopy (XPS), 
      Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS) and contact angle 
      measurements. On the one hand, the results provided by the combined use of these 
      three powerful techniques showed unambiguously the occurrence of the reaction at 
      the fibers' surface and, on the other hand, the XPS results showed that the 
      surface coverage with the fatty acid moieties increased with their chain length, 
      but was only modestly affected by the degree of substitution (DS), suggesting 
      that when the esterification yield was increased (higher DS values), an in-depth 
      reaction also occurred, particularly when DMF was used as a cellulose swelling 
      medium, involving the OH groups buried below the fibers' surface.
FAU - Freire, Carmen S R
AU  - Freire CS
AD  - CICECO and Department of Chemistry, University of Aveiro, Campus de Santiago, 
      3810-193 Aveiro, Portugal. cfreire@dq.ua.pt
FAU - Silvestre, Armando J D
AU  - Silvestre AJ
FAU - Pascoal Neto, Carlos
AU  - Pascoal Neto C
FAU - Gandini, Alessandro
AU  - Gandini A
FAU - Fardim, Pedro
AU  - Fardim P
FAU - Holmbom, Bjarne
AU  - Holmbom B
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20060429
PL  - United States
TA  - J Colloid Interface Sci
JT  - Journal of colloid and interface science
JID - 0043125
RN  - 0 (Biocompatible Materials)
RN  - 0 (Fatty Acids)
RN  - 0 (Formamides)
RN  - 8696NH0Y2X (Dimethylformamide)
RN  - 9004-34-6 (Cellulose)
SB  - IM
MH  - Adsorption
MH  - Biocompatible Materials/*chemistry
MH  - Cellulose/*chemistry
MH  - Dimethylformamide
MH  - Esterification
MH  - Fatty Acids/*chemistry
MH  - Formamides/chemistry
MH  - Materials Testing/*methods
MH  - Spectrometry, Mass, Secondary Ion
MH  - *Spectrum Analysis
MH  - Surface Properties
MH  - X-Rays
EDAT- 2006/05/30 09:00
MHDA- 2007/09/29 09:00
CRDT- 2006/05/30 09:00
PHST- 2006/03/13 00:00 [received]
PHST- 2006/04/26 00:00 [revised]
PHST- 2006/04/27 00:00 [accepted]
PHST- 2006/05/30 09:00 [pubmed]
PHST- 2007/09/29 09:00 [medline]
PHST- 2006/05/30 09:00 [entrez]
AID - S0021-9797(06)00390-0 [pii]
AID - 10.1016/j.jcis.2006.04.074 [doi]
PST - ppublish
SO  - J Colloid Interface Sci. 2006 Sep 1;301(1):205-9. doi: 
      10.1016/j.jcis.2006.04.074. Epub 2006 Apr 29.