{"title":"甲基丙烯酸与环氧氯丙烷在丁香酸功能化介孔二氧化硅纳米复合材料上的酯化反应","authors":"Amit Dubey, P. B. Gourav, Harjinder Singh","doi":"10.1007/s11144-025-02798-z","DOIUrl":null,"url":null,"abstract":"<div><p>To achieve better selectivity of multiproduct conversion, syringic acid (SA) functionalized ordered mesoporous silica nanocomposites were synthesized and characterized via post grafted in-situ polymerization method for the liquid phase esterification of methacrylic acid with epichlorohydrin under environmentally friendly conditions. The physicochemical characterization results (PXRD, N<sub>2</sub>-adsorption desorption isotherm, SEM etc.) revealed the presence of mesoporous nature of the samples. The synthesized nanocomposites were then used as catalysts for the liquid phase esterification of methacrylic acid (MAA) with epichlorohydrin (ECH) to achieve high selectivity of the products. Exceptionally, higher activity and selectivity of the desired products could be achieved for optimized experimental conditions. Finally, the plausible mechanism is also proposed and explained for the formation of products.</p></div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"138 3","pages":"1439 - 1451"},"PeriodicalIF":1.7000,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Esterification of methacrylic acid with epichlorohydrin over syringic acid functionalized mesoporous silica nanocomposites\",\"authors\":\"Amit Dubey, P. B. Gourav, Harjinder Singh\",\"doi\":\"10.1007/s11144-025-02798-z\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>To achieve better selectivity of multiproduct conversion, syringic acid (SA) functionalized ordered mesoporous silica nanocomposites were synthesized and characterized via post grafted in-situ polymerization method for the liquid phase esterification of methacrylic acid with epichlorohydrin under environmentally friendly conditions. The physicochemical characterization results (PXRD, N<sub>2</sub>-adsorption desorption isotherm, SEM etc.) revealed the presence of mesoporous nature of the samples. The synthesized nanocomposites were then used as catalysts for the liquid phase esterification of methacrylic acid (MAA) with epichlorohydrin (ECH) to achieve high selectivity of the products. Exceptionally, higher activity and selectivity of the desired products could be achieved for optimized experimental conditions. Finally, the plausible mechanism is also proposed and explained for the formation of products.</p></div>\",\"PeriodicalId\":750,\"journal\":{\"name\":\"Reaction Kinetics, Mechanisms and Catalysis\",\"volume\":\"138 3\",\"pages\":\"1439 - 1451\"},\"PeriodicalIF\":1.7000,\"publicationDate\":\"2025-01-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Reaction Kinetics, Mechanisms and Catalysis\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11144-025-02798-z\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Reaction Kinetics, Mechanisms and Catalysis","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s11144-025-02798-z","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Esterification of methacrylic acid with epichlorohydrin over syringic acid functionalized mesoporous silica nanocomposites
To achieve better selectivity of multiproduct conversion, syringic acid (SA) functionalized ordered mesoporous silica nanocomposites were synthesized and characterized via post grafted in-situ polymerization method for the liquid phase esterification of methacrylic acid with epichlorohydrin under environmentally friendly conditions. The physicochemical characterization results (PXRD, N2-adsorption desorption isotherm, SEM etc.) revealed the presence of mesoporous nature of the samples. The synthesized nanocomposites were then used as catalysts for the liquid phase esterification of methacrylic acid (MAA) with epichlorohydrin (ECH) to achieve high selectivity of the products. Exceptionally, higher activity and selectivity of the desired products could be achieved for optimized experimental conditions. Finally, the plausible mechanism is also proposed and explained for the formation of products.
期刊介绍：
Reaction Kinetics, Mechanisms and Catalysis is a medium for original contributions in the following fields:
-kinetics of homogeneous reactions in gas, liquid and solid phase;
-Homogeneous catalysis;
-Heterogeneous catalysis;
-Adsorption in heterogeneous catalysis;
-Transport processes related to reaction kinetics and catalysis;
-Preparation and study of catalysts;
-Reactors and apparatus.
Reaction Kinetics, Mechanisms and Catalysis was formerly published under the title Reaction Kinetics and Catalysis Letters.
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