Abstract
Hydrophobic modification of hydroxyethyl cellulose is carried out in ionic liquids homogeneously, with bromododecane as the etherification agent. FTIR, XRD, XPS, and DSC analysis are used to characterize the obtained products. The effect of reaction temperature, time and the content of bromododecane on the viscosity of the aqueous solution of the modified product are discussed in detail. It is found that when hydroxyethyl cellulose is modified with the optimal conditions (at 80°C for 6 h), the crystalline structure changes to amorphous completely, the degree of substituent is 0.27, the glass transition point increases from 102.1 to 128.6°C. The thickening property, viscosity temperature resistance and salt tolerance before and after grafting long alkyl chain into the molecular chains are compared. It concludes that by hydrophobically modifying hydroxyethyl cellulose with long alkyl chains, all the above properties can be significantly improved, which may extremely expand the applications of hydroxyethyl cellulose.
REFERENCES
D. Klemm, B. Heublein, H.-P. Fink, and A. Bohn, Angew. Chem. Int. Ed. 44, 3358 (2005).
Y. Zhang, A. Xu, B. Lu, Z. Li, and J. Wang, Carbohydr. Polym. 117, 666 (2015).
H. Yokoi, R. Maki, J. Hirose, and S. Hayashi, Biomass Bioenerg. 22, 389 (2002).
X. Wang, M. Wu, B. Zhang, Y. Zhang, C. Hu, L. Shi, Y. Lv, and R. Ran, Colloid Surf., A 562, 383 (2019).
R. P. Swatloski, S. K. Spear, J. D. Holbrey, and R. D. Rogers, J. Am. Chem. Soc. 124, 4974 (2002).
R. De Silva, K. Vongsanga, X. G. Wang, and N. Byrne, Cellulose 22, 2845 (2015).
A. R. Xu and Y. B. Zhang, J. Mol. Struct. 1088, 101 (2015).
R. Sescousse, K. A. Le, M. E. Ries, and T. Budtova, J. Phys. Chem. B 114, 7222 (2010).
T. Heinze, K. Schwikal, and S. Barthel, Macromol. Biosci. 5, 520 (2005).
J. Miao, Y. Yu, Z. Jiang, and L. Zhang, Cellulose 23, 1209 (2016).
S. Montes, I. Azcune, G. Cabanero, H. J. Grande, I. Odriozola, and J. Labidi, Materials 9, 499 (2016).
J. Ren, X. Peng, L. Zhong, F. Peng, and R. Sun, Carbohydr. Polym. 89, 152 (2012).
Z. F. Zhang, J. G. Li, Q. G. Zhang, W. Guan, and J. Z. Yang, J. Chem. Eng. Data 53, 1196 (2008).
J. G. Huddleston, A. E. Visser, W. M. Reichert, H. D. Willauer, G. A. Broker, and R. D. Rogers, Green Chem. 3, 156 (2001).
Funding
The authors are grateful to the financial support of Basic research project of colleges and Universities of Liaoning Provincial Department of Education (JYTMS20230194) and Open Research Fund Program of Institute of cosmetic regulatory science (Beijing Technology and Business University) (CRS-2021-03).
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Mingwei Du, Men, S. & Jin, Y. Homogeneous Hydrophobic Modification of Hydroxyethyl Cellulose in Ionic Liquids. Polym. Sci. Ser. B 65, 786–791 (2023). https://doi.org/10.1134/S1560090424600049
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DOI: https://doi.org/10.1134/S1560090424600049