Ali Karbasi, Reza Darvishi, AmirHossein Enayati Gerdroodbar, Ghasem Payam
{"title":"单宁酸(TA)与l -赖氨酸二异氰酸酯(LDI)体系反应动力学分析","authors":"Ali Karbasi, Reza Darvishi, AmirHossein Enayati Gerdroodbar, Ghasem Payam","doi":"10.1155/2023/6616752","DOIUrl":null,"url":null,"abstract":"The kinetics of the synthesis of green polyurethane from the reaction between tannic acid (TA) and L-lysine diisocyanate (LDI) were investigated using the differential scanning calorimeter (DSC) technique and dynamic rheological tests. The evaluation of the reaction behavior of the prepared samples was carried out using nonisothermal conditions at dynamic heating rates of 5, 10, 15, and 20°C/min. The evolution of the activation energy with conversion was computed through the five isoconversional methods of Ozawa-Flynn-Wall and Kissinger-Akahira-Sunose (KAS), the Ozawa-Flynn-Wall method (OFW), Friedman (FR), Starink, and Vyazovkin. The average activation energy calculated from these methods was estimated at 46.5, 46.8, 47.2, 47.3, and 51.4 KJ/mol, respectively. The preexponential factor was evaluated at <span><svg height=\"11.786pt\" style=\"vertical-align:-0.3499002pt\" version=\"1.1\" viewbox=\"-0.0498162 -11.4361 32.221 11.786\" width=\"32.221pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g transform=\"matrix(.013,0,0,-0.013,0,0)\"></path></g><g transform=\"matrix(.013,0,0,-0.013,6.24,0)\"></path></g><g transform=\"matrix(.013,0,0,-0.013,9.204,0)\"></path></g><g transform=\"matrix(.013,0,0,-0.013,15.444,0)\"></path></g><g transform=\"matrix(.013,0,0,-0.013,24.59,0)\"></path></g></svg><span></span><svg height=\"11.786pt\" style=\"vertical-align:-0.3499002pt\" version=\"1.1\" viewbox=\"35.076183799999995 -11.4361 17.683 11.786\" width=\"17.683pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g transform=\"matrix(.013,0,0,-0.013,35.126,0)\"></path></g><g transform=\"matrix(.013,0,0,-0.013,41.366,0)\"><use xlink:href=\"#g113-49\"></use></g><g transform=\"matrix(.0091,0,0,-0.0091,47.653,-5.741)\"></path></g></svg></span> 1/s. The overall reaction order (<span><svg height=\"7.35473pt\" style=\"vertical-align:-0.3499303pt\" version=\"1.1\" viewbox=\"-0.0498162 -7.0048 17.063 7.35473\" width=\"17.063pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g transform=\"matrix(.013,0,0,-0.013,0,0)\"></path></g><g transform=\"matrix(.013,0,0,-0.013,9.432,0)\"></path></g></svg><span></span><span><svg height=\"7.35473pt\" style=\"vertical-align:-0.3499303pt\" version=\"1.1\" viewbox=\"19.9181838 -7.0048 10.448 7.35473\" width=\"10.448pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g transform=\"matrix(.013,0,0,-0.013,19.968,0)\"></path></g></svg>)</span></span> was also found to be around 1.8912. The results of the combination of the model-free method and model-fitting approach exhibited that the reaction mechanism was an autocatalytic type, implying the autocatalytic effect of the urethane groups formed during the reaction. The obtained kinetic for TA/LDI was verified through its good agreement with the experimental data. Moreover, the results found from the isothermal rheological test show that with increasing temperature, the gelation time decreases.","PeriodicalId":14283,"journal":{"name":"International Journal of Polymer Science","volume":null,"pages":null},"PeriodicalIF":3.4000,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Kinetic Analysis of the Reaction between Tannic Acid (TA) and L-Lysine Diisocyanate (LDI) Systems\",\"authors\":\"Ali Karbasi, Reza Darvishi, AmirHossein Enayati Gerdroodbar, Ghasem Payam\",\"doi\":\"10.1155/2023/6616752\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The kinetics of the synthesis of green polyurethane from the reaction between tannic acid (TA) and L-lysine diisocyanate (LDI) were investigated using the differential scanning calorimeter (DSC) technique and dynamic rheological tests. The evaluation of the reaction behavior of the prepared samples was carried out using nonisothermal conditions at dynamic heating rates of 5, 10, 15, and 20°C/min. The evolution of the activation energy with conversion was computed through the five isoconversional methods of Ozawa-Flynn-Wall and Kissinger-Akahira-Sunose (KAS), the Ozawa-Flynn-Wall method (OFW), Friedman (FR), Starink, and Vyazovkin. The average activation energy calculated from these methods was estimated at 46.5, 46.8, 47.2, 47.3, and 51.4 KJ/mol, respectively. The preexponential factor was evaluated at <span><svg height=\\\"11.786pt\\\" style=\\\"vertical-align:-0.3499002pt\\\" version=\\\"1.1\\\" viewbox=\\\"-0.0498162 -11.4361 32.221 11.786\\\" width=\\\"32.221pt\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\" xmlns:xlink=\\\"http://www.w3.org/1999/xlink\\\"><g transform=\\\"matrix(.013,0,0,-0.013,0,0)\\\"></path></g><g transform=\\\"matrix(.013,0,0,-0.013,6.24,0)\\\"></path></g><g transform=\\\"matrix(.013,0,0,-0.013,9.204,0)\\\"></path></g><g transform=\\\"matrix(.013,0,0,-0.013,15.444,0)\\\"></path></g><g transform=\\\"matrix(.013,0,0,-0.013,24.59,0)\\\"></path></g></svg><span></span><svg height=\\\"11.786pt\\\" style=\\\"vertical-align:-0.3499002pt\\\" version=\\\"1.1\\\" viewbox=\\\"35.076183799999995 -11.4361 17.683 11.786\\\" width=\\\"17.683pt\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\" xmlns:xlink=\\\"http://www.w3.org/1999/xlink\\\"><g transform=\\\"matrix(.013,0,0,-0.013,35.126,0)\\\"></path></g><g transform=\\\"matrix(.013,0,0,-0.013,41.366,0)\\\"><use xlink:href=\\\"#g113-49\\\"></use></g><g transform=\\\"matrix(.0091,0,0,-0.0091,47.653,-5.741)\\\"></path></g></svg></span> 1/s. The overall reaction order (<span><svg height=\\\"7.35473pt\\\" style=\\\"vertical-align:-0.3499303pt\\\" version=\\\"1.1\\\" viewbox=\\\"-0.0498162 -7.0048 17.063 7.35473\\\" width=\\\"17.063pt\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\" xmlns:xlink=\\\"http://www.w3.org/1999/xlink\\\"><g transform=\\\"matrix(.013,0,0,-0.013,0,0)\\\"></path></g><g transform=\\\"matrix(.013,0,0,-0.013,9.432,0)\\\"></path></g></svg><span></span><span><svg height=\\\"7.35473pt\\\" style=\\\"vertical-align:-0.3499303pt\\\" version=\\\"1.1\\\" viewbox=\\\"19.9181838 -7.0048 10.448 7.35473\\\" width=\\\"10.448pt\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\" xmlns:xlink=\\\"http://www.w3.org/1999/xlink\\\"><g transform=\\\"matrix(.013,0,0,-0.013,19.968,0)\\\"></path></g></svg>)</span></span> was also found to be around 1.8912. The results of the combination of the model-free method and model-fitting approach exhibited that the reaction mechanism was an autocatalytic type, implying the autocatalytic effect of the urethane groups formed during the reaction. The obtained kinetic for TA/LDI was verified through its good agreement with the experimental data. Moreover, the results found from the isothermal rheological test show that with increasing temperature, the gelation time decreases.\",\"PeriodicalId\":14283,\"journal\":{\"name\":\"International Journal of Polymer Science\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.4000,\"publicationDate\":\"2023-11-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Polymer Science\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1155/2023/6616752\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"POLYMER SCIENCE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Polymer Science","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1155/2023/6616752","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
Kinetic Analysis of the Reaction between Tannic Acid (TA) and L-Lysine Diisocyanate (LDI) Systems
The kinetics of the synthesis of green polyurethane from the reaction between tannic acid (TA) and L-lysine diisocyanate (LDI) were investigated using the differential scanning calorimeter (DSC) technique and dynamic rheological tests. The evaluation of the reaction behavior of the prepared samples was carried out using nonisothermal conditions at dynamic heating rates of 5, 10, 15, and 20°C/min. The evolution of the activation energy with conversion was computed through the five isoconversional methods of Ozawa-Flynn-Wall and Kissinger-Akahira-Sunose (KAS), the Ozawa-Flynn-Wall method (OFW), Friedman (FR), Starink, and Vyazovkin. The average activation energy calculated from these methods was estimated at 46.5, 46.8, 47.2, 47.3, and 51.4 KJ/mol, respectively. The preexponential factor was evaluated at 1/s. The overall reaction order () was also found to be around 1.8912. The results of the combination of the model-free method and model-fitting approach exhibited that the reaction mechanism was an autocatalytic type, implying the autocatalytic effect of the urethane groups formed during the reaction. The obtained kinetic for TA/LDI was verified through its good agreement with the experimental data. Moreover, the results found from the isothermal rheological test show that with increasing temperature, the gelation time decreases.
期刊介绍:
The International Journal of Polymer Science is a peer-reviewed, Open Access journal that publishes original research articles as well as review articles on the chemistry and physics of macromolecules.