| POLYMERS AND POLYMER MATRIX COMPOSITES |
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| Synthesis and Evaluation of Aromatic Poly(amino acids) Demulsifiers |
| WANG Huanjiang1,*, YANG Qiliang1, ZHANG Yuchen1, WU Zhuyu1, LYU Yu1, ZHOU Guoyong1, REN Sili2,*
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1 Key Laboratory of Low-Dimensional Materials and Big Data, Guizhou Minzu University, Guiyang 550025, China
2 School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Key Laboratory of Mining Engineering of Jiangxi Pro-vince, Ganzhou 341000, Jiangxi, China |
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Abstract A series of high-performance aromatic and amphiphilic polyamides poly(L-phenylalanine)-block-poly (L-asparticacid-benzyl ester) (PPA-b-PBAA) demulsifiers were synthesized by the ring opening polymerization (ROP) of hydrophobic phenylalanine and hydrophilic aspartic acid N-carboxyanhydrides (NCA) monomer. The structure and molecular weight of the PBAA were characterized and gel permeation chromatography (GPC). The demulsification performance of PPA-b-PBAA demulisifers was evaluated by bottle test. The results showed that PPA-b-PBAA shows excellent low temperature demulsification capability, which can effectively separate oil in water emulsions with pH=6.0—11.0 and oil content of 1.0wt%—10.0wt% within 2 min at room temperature. The best demulsification efficiency of PPA-b-PBAA for treating 1.0wt% emulsion was as high 99.98%, corresponding to the residual oil content in the separated water was as low as 8.50 mg/L. The demulsification mechanism study indicated that when PPA-b-PBAA adding into the emulsion, which not only can quickly migrate to oil-water interface, and interact with and/or displace the stabilizers (asphaltenes/resins) of the emulsion. Finally, promote the dispersion of oil drops through flocculation and achieve oil and water separation. The interaction behavior between PPA-b-PBAA and asphaltenes was investigated by quantum chemical calculation and non-covalent interactions analysis (NCIs). The results revealed that PPA-b-PBAA has a stronger adsorbability for asphaltene molecules by van der Waals force. Due to the strong interaction between the demulsifiers and the asphaltenes, the protective film stabilizing the oil-in-water emulsion was more easily destroyed, thus promoting the oil droplets to coalesce to realize the separation of oil from water at room temperature.
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Published: 25 June 2024
Online: 2024-07-17
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| Fund:National Natural Science Foundation of China (22262008, 22078138), Guizhou Provincial Science and Technology Projects (ZK[2021]051), and National College Students Innovation and Entrepreneurship Training Plan(202051020102, S202110672045). |
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1 Jia C Z. Acta Petrolei Sinica, 2020, 41(12), 1445 (in Chinese).
贾承造. 石油学报, 2020, 41(12), 1445.
2 Hu W R, Bao J W. Journal of China University of Petroleum, 2018, 42(4), 1 (in Chinese).
胡文瑞, 鲍敬伟. 中国石油大学学报(自然科学版), 2018, 42(4), 1.
3 Liu J, Zhao Y P, Hu B, et al. Chemical Industry and Engineering Progress, 2013, 32(4), 891 (in Chinese).
刘娟, 赵亚溥, 胡斌, 等. 化工进展, 2013, 32(4), 891.
4 Wang D, Yang D L, Huang C, et al. Fuel, 2021, 286, 119390.
5 Zolfaghari R, Fakhru'l-Razi A, Abdullah L C, et al. Separation and Purification Technology, 2016, 170, 377.
6 Sun N N, Sun H N, Shen L N, et al. Chemical Industry and Engineering Progress, 2022, 41(6), 3127 (in Chinese).
孙娜娜, 孙会娜, 沈莉莎, 等. 化工进展, 2022, 41(6), 3127.
7 Hu G J, Li J B, Zeng G M. Journal of Hazardous Materials, 2013, 261, 470.
8 Raya S A, Saaid I M, Ahmed A A, et al. Journal of Petroleum Exploration and Production Technology, 2020, 10(4), 1711.
9 Zhang Z J, Feng X M, Zeng G X, et al. Energy & Fuels, 2021, 35(4), 3095.
10 Xu Y M, Wu J Y, Dabros T, et al. The Canadian Journal of Chemical Engineering, 2004, 82(4), 829.
11 Liu J, Li X C, Liu J, et al. Journal of Dispersion Science and Technology, 2020, 41(13), 1991.
12 Wang H J, Yang Q L, Zhang Y C, et al. Materials Reports, 2023, 37(4), 21070242 (in Chinese).
王环江, 杨启亮, 张雨晨, 等. 材料导报, 2023, 37(4), 21070242.
13 Wang T, Yang D L, Huang C, et al. Fuel, 2021, 286(1), 119390.
14 Nguyen D, Balsamo V, Phan J. Energy & Fuels, 2014, 28(3), 1641.
15 Wang D L, Lin M Q, Dong Z X, et al. Energy & Fuels, 2016, 30(3), 1947.
16 Abdulredha M M, Aslina H S, Luqman C A, et al. Arabian Journal of Chemistry, 2020, 13(1), 3403.
17 Hoque J, Gonuguntla S, Yarlagadda V, et al. Physical Chemistry Chemical Physics 2014, 16, 11279.
18 Wang H J, Liu J, Xu H Y, et al. RSC Advances, 2016, 6, 106297.
19 Liu J, Wang H J, Li X C, et al. Fuel, 2017, 189(1), 79.
20 Wang H J, Xu H Y, Jia W H, et al. Energy & Fuels, 2017, 31(3), 2488.
21 Wang H J, Xu H Y, Jia W H, et al. Journal of Dispersion Science and Technology, 2018, 39(4), 497.
22 Mahjour B, Shen Y N, Liu W B, et al. Nature, 2020, 580, 71.
23 Tian Z Y, Zhang Z C, Wang S, et al. Nature Communications, 2018, 39(4), 497.
24 Liu H, Cheng Y L, Chen J J, et al. Acta Biomaterialia, 2018, 73, 103.
25 Park S B, Sung M H, Uyama H, et al. Progress in Polymer Science, 2021, 113, 101341.
26 Kim M S, Dayananda K, Choi E K, et al. Polymer, 2009, 50(10), 2252.
27 Feng X H, Xu Z H, Masliyah J. Energy & Fuels, 2009, 23(1), 451.
28 Neese F, Wenmohs F, Beckerr U, et al. The Journal of Chemical Phy-sics, 2020, 152(22), 224108.
29 Martinez L, Andrade R, Birgin E G, et al. Journal of Computational Chemistry, 2009, 30(13), 2157.
30 Liu R Z, Shang F J, Xiong Y, et al. Physical Chemistry Chemical Phy-sics, 2021, 23, 20718.
31 Lu T, Chen F W. Journal of Computational Chemistry, 2012, 33(5), 580.
32 Humphrey W, Dalke A, Schukten K. Journal of Molecular Graphics, 1996, 14(1), 33.
33 Bossion A, Nicolas J. European Polymer Journal, 2020, 140(5), 110033.
34 Wang K, Luo G F, Liu Y, et al. Polymer Chemistry, 2012, 3, 1084.
35 Liu W F, Li L H, Qiao P, et al. Journal of International Pharmaceutical Research, 2016, 43(4), 718 (in Chinese).
刘伟芬, 李禄辉, 乔鹏, 等. 国际药学研究杂志, 2016, 43(4), 718.
36 Hou S S, Fan N S, Tseng Y C, et al. Macromolecules, 2018, 51(20), 8054. |
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2024, Vol. 38 
