石油化工2025，Vol.54Issue(7)：972-978,7.DOI:10.3969/j.issn.1000-8144.2025.07.010
乙烯/甲基丙烯酸型离聚物的碱处理制备与性能研究
Synthesis and properties of poly(ethylene-co-methacrylic acid)-based ionomer treated by alkali
吴映雪 1李肖夫 1李汝贤 1宋文波1
作者信息
- 1. 中石化(北京)化工研究院有限公司,北京 100013
- 折叠
摘要
Abstract
Ionic polymer(ionomer)resins exhibit excellent mechanical and optical properties and are of great value in academic research and industrial applications.Through the solution method,a series of ionomers with different degrees of neutralization were synthesized by alkali treatment using poly(ethylene-co-methacrylic acid)(EMAA)as the precursor.The microstructure and macroscopic properties of the ionomers were characterized by FTIR,DSC,SAXS,XPS,and rheological and mechanical property tests and compared with the commercial Surlyn 8940 product.The experimental results show that with the increase in the degree of neutralization,the crosslinking degree of the EMAA-based ionomers increases,while the melt index and melting point show a general decreasing trend,accompanied by significant increases in the complex viscosity,storage modulus,and mechanical strength.When the theoretical degree of neutralization reaches 70%,the haze increases significantly.The EMAA-based ionomer with a 30%theoretical degree of neutralization prepared by the solution method exhibits structure and properties quite similar to those of the commercial Surlyn 8940 resin.关键词
离子型聚合物/溶液法/乙烯/甲基丙烯酸共聚物/中和度Key words
ionic polymer/solution method/poly(ethylene-co-methacrylic acid)/degree of neutralization分类
化学化工引用本文复制引用
吴映雪,李肖夫,李汝贤,宋文波..乙烯/甲基丙烯酸型离聚物的碱处理制备与性能研究[J].石油化工,2025,54(7):972-978,7.
