文献类型：期刊文献

英文题名：Synthesis kinetics of B-COPNA resin monitored by the transformation of functional groups using in-situ FTIR spectroscopy

作者：Zhang, Yuan-Qin[1];Cui, Ling-Rui[1];Shen, Hong-Yan[1];Shen, Jun-Ping[1,2];Ma, Hong-Fang[1];Xu, Jun[1,3];Cao, Fa-Hai[1,3]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China;[2]Aksu Ind Polytech Coll, Dept Energy Chem Engn, Aksu 842000, Xinjiang, Peoples R China;[3]East China Univ Sci & Technol, Large Ind Reactor Engn Res Ctr, Minist Educ, Shanghai 200237, Peoples R China

年份：2025

卷号：22

期号：10

起止页码：4282

外文期刊名：PETROLEUM SCIENCE

收录：;EI(收录号：20254119298540);WOS:【SCI-EXPANDED(收录号:WOS:001616958700001)】；

基金：This research is financially supported by the National Natural Science Foundation of China (52174023) , National Natural Science Foundation of P. R. China (22308104) , and China Petroleum Engi-neering Corp., Ltd. (CPEC) (2021ZYGC-01-01) . The authors also would like to thank the Research Center of Analysis and Test of East China University of Science and Technology for the help on the characterization of FT-IR spectra.

语种：英文

外文关键词：Ethylene tar light fraction; B-COPNA resin; In-situ FTIR; Synthesis kinetics

摘要：B-COPNA resin, synthesized from the light fraction of ethylene tar (ETLF), is a superior precursor of the carbon materials. An in-depth understanding of the COPNA resin preparation process and strict control of crosslinking degree are crucial for controlling carbon materials performance. Therefore, the synthesis kinetics of B-COPNA resin prepared from ETLF was investigated using in-situ FTIR in this work. The synthesis kinetic models of B-COPNA resin were established for the first time. To express the kinetic model, the concentration changes of C-H in aromatic rings and O-H in PXG monitored by in-situ FTIR were selected as two indicators to calculate concentration of other compounds and describe the synthesis kinetics. Then confirmatory experiments were conducted, and the rho(2) (>0.9900), F-values (>10F(0.05)) and parameter errors (below 3%) of kinetic models verify that concentration changes of C-H and O-H can be used to describe synthesis kinetics of B-COPNA resin. Based on the results of confirmatory experiments, the synthesis kinetic model of B-COPNA resin in the ETLF system is established successfully using concentration changes of O-H as an indicator, whose appropriateness and feasibility are proved by the rho(2) (0.9960) and F-values (>10F(0.05)). These models could accurately describe the synthesis rate of B-COPNA resin. (c) 2025 The Authors. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-ncnd/4.0/).