The influence of modification and vacuum/supercritical CO2 (scCO2) drying methods on the surface properties, morphology and thermal stability of cellulose nanocrystals (NC) was presented in this study. Introduction of reactive vinyl groups on NC surface was performed by either direct esterification with oleic acid, linseed or sunflower oil fatty acids; or by amidation of maleic acid/ethylene diamine with methyl ester of fatty acid. Obtained modified NC (m-NC) were characterized using FTIR and Raman spectroscopy; and by determination of acid, iodine and ester values. Structural analysis of m-NC showed varieties of forms, from spongy to nanostructural non-uniform layered morphology with observable agglomeration, which confirmed morphology dependence on modification/processing methods Thermogravimetry-MS spectrometry showed different thermal stability and degradation pathways of NC/m-NC. Incorporation of 1 wt% of reactive m-NC in unsaturated polyester lead to high performance nanocomposit...es and contributed to increase of stress at break in the range from 76 to 93%.
TY - JOUR
AU - Rusmirović, Jelena
AU - Ivanović, Jasna
AU - Pavlović, Vladimir B.
AU - Rakić, Vesna M.
AU - Rančić, Milica P.
AU - Đokić, Veljko
AU - Marinković, Aleksandar D.
PY - 2017
UR - http://dais.sanu.ac.rs/123456789/2380
AB - The influence of modification and vacuum/supercritical CO2 (scCO2) drying methods on the surface properties, morphology and thermal stability of cellulose nanocrystals (NC) was presented in this study. Introduction of reactive vinyl groups on NC surface was performed by either direct esterification with oleic acid, linseed or sunflower oil fatty acids; or by amidation of maleic acid/ethylene diamine with methyl ester of fatty acid. Obtained modified NC (m-NC) were characterized using FTIR and Raman spectroscopy; and by determination of acid, iodine and ester values. Structural analysis of m-NC showed varieties of forms, from spongy to nanostructural non-uniform layered morphology with observable agglomeration, which confirmed morphology dependence on modification/processing methods Thermogravimetry-MS spectrometry showed different thermal stability and degradation pathways of NC/m-NC. Incorporation of 1 wt% of reactive m-NC in unsaturated polyester lead to high performance nanocomposites and contributed to increase of stress at break in the range from 76 to 93%.
PB - Elsevier
T2 - Carbohydrate Polymers
T1 - Novel modified nanocellulose applicable as reinforcement in high-performance nanocomposites
SP - 64
EP - 74
VL - 164
DO - 10.1016/j.carbpol.2017.01.086
ER -
@article{
author = "Rusmirović, Jelena and Ivanović, Jasna and Pavlović, Vladimir B. and Rakić, Vesna M. and Rančić, Milica P. and Đokić, Veljko and Marinković, Aleksandar D.",
year = "2017",
url = "http://dais.sanu.ac.rs/123456789/2380",
abstract = "The influence of modification and vacuum/supercritical CO2 (scCO2) drying methods on the surface properties, morphology and thermal stability of cellulose nanocrystals (NC) was presented in this study. Introduction of reactive vinyl groups on NC surface was performed by either direct esterification with oleic acid, linseed or sunflower oil fatty acids; or by amidation of maleic acid/ethylene diamine with methyl ester of fatty acid. Obtained modified NC (m-NC) were characterized using FTIR and Raman spectroscopy; and by determination of acid, iodine and ester values. Structural analysis of m-NC showed varieties of forms, from spongy to nanostructural non-uniform layered morphology with observable agglomeration, which confirmed morphology dependence on modification/processing methods Thermogravimetry-MS spectrometry showed different thermal stability and degradation pathways of NC/m-NC. Incorporation of 1 wt% of reactive m-NC in unsaturated polyester lead to high performance nanocomposites and contributed to increase of stress at break in the range from 76 to 93%.",
publisher = "Elsevier",
journal = "Carbohydrate Polymers",
title = "Novel modified nanocellulose applicable as reinforcement in high-performance nanocomposites",
pages = "64-74",
volume = "164",
doi = "10.1016/j.carbpol.2017.01.086"
}
Rusmirović, J., Ivanović, J., Pavlović, V. B., Rakić, V. M., Rančić, M. P., Đokić, V.,& Marinković, A. D. (2017). Novel modified nanocellulose applicable as reinforcement in high-performance nanocomposites.
Carbohydrate PolymersElsevier., 164, 64-74.
https://doi.org/10.1016/j.carbpol.2017.01.086
Rusmirović Jelena, Ivanović Jasna, Pavlović Vladimir B., Rakić Vesna M., Rančić Milica P., Đokić Veljko, Marinković Aleksandar D., "Novel modified nanocellulose applicable as reinforcement in high-performance nanocomposites" 164 (2017):64-74,
https://doi.org/10.1016/j.carbpol.2017.01.086 .
