The influence of modification and vacuum/supercritical CO2 (scCO(2)) 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 MR 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
AU - Đokić, Veljko
AU - Marinković, Aleksandar
PY - 2017
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3741
AB - The influence of modification and vacuum/supercritical CO2 (scCO(2)) 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 MR 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 Sci Ltd, Oxford
T2 - Carbohydrate Polymers
T1 - Novel modified nanocellulose applicable as reinforcement in high-performance nanocomposites
EP - 74
SP - 64
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 and Đokić, Veljko and Marinković, Aleksandar",
year = "2017",
abstract = "The influence of modification and vacuum/supercritical CO2 (scCO(2)) 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 MR 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 Sci Ltd, Oxford",
journal = "Carbohydrate Polymers",
title = "Novel modified nanocellulose applicable as reinforcement in high-performance nanocomposites",
pages = "74-64",
volume = "164",
doi = "10.1016/j.carbpol.2017.01.086"
}
Rusmirović, J., Ivanović, J., Pavlović, V. B., Rakić, V. M., Rančić, M., Đokić, V.,& Marinković, A.. (2017). Novel modified nanocellulose applicable as reinforcement in high-performance nanocomposites. in Carbohydrate Polymers
Elsevier Sci Ltd, Oxford., 164, 64-74.
https://doi.org/10.1016/j.carbpol.2017.01.086
Rusmirović J, Ivanović J, Pavlović VB, Rakić VM, Rančić M, Đokić V, Marinković A. Novel modified nanocellulose applicable as reinforcement in high-performance nanocomposites. in Carbohydrate Polymers. 2017;164:64-74.
doi:10.1016/j.carbpol.2017.01.086 .
Rusmirović, Jelena, Ivanović, Jasna, Pavlović, Vladimir B., Rakić, Vesna M., Rančić, Milica, Đokić, Veljko, Marinković, Aleksandar, "Novel modified nanocellulose applicable as reinforcement in high-performance nanocomposites" in Carbohydrate Polymers, 164 (2017):64-74,
https://doi.org/10.1016/j.carbpol.2017.01.086 . .
