纺织科学与工程学报2026，Vol.43Issue(2)：48-57,73,11.DOI:10.3969/j.issn.2096-5184.2026.02.007
丙烯酸乙酯-甲基丙烯酸甲酯共聚物结构中红外光谱研究
Study on the Infrared Spectroscopy ofEthyl Acrylate-Methyl Methacrylate Polymer Structure
摘要
Abstract
The synthesis process of ethyl acrylate-methyl methacrylate(EA-MMA)copolymer aqueous dis-persion was explored.The structure of the freeze-dried powder of EA-MMA copolymer aqueous dispersion(hereinafter referred to as EA-MMA copolymer)was studied by using mid infrared(MIR)spectroscopy.The experiments found that the infrared absorption modes of EA-MMA copolymer structure mainly included:EA-MMA copolymer C=O functional group stretching vibration mode(νC=O-EA-MMA copolymer),EA-MMA copolymer CH3 functional group asymmetric bending vibration mode(δas CH3-EA-MMA copolymer),EA-MMA copolymer CH3 func-tional group symmetric bending vibration mode(δs CH3-EA-MMA copolymer),emulsifier aryl C=C functional group stretc-hing vibration mode(νC=C-emulsifier),and a mixed mode of EA-MMA copolymer and emulsifier C-O functional group stretching vibration(νC-O-emulsifier+νC-O-EA-MMA copolymer).The structures of EA-MMA copolymers from differ-ent manufacturers were basically similar.A systematic structure study was conducted on common emulsifiers,and it was concluded that the emulsifiers in the samples mainly included nonylphenol polyoxyethylene ether and octyl-phenol polyoxyethylene ether.Further semi-quantitative research was carried out on emulsifiers in EA-MMA co-polymers.There were also certain differences in the types and relative contents of emulsifiers in EA-MMA copol-ymers.MIR spectroscopy can quickly conduct research on the synthesis process of special medical textile materi-als EA-MMA copolymer aqueous dispersions.关键词
丙烯酸乙酯-甲基丙烯酸甲酯共聚物水分散体/结构/中红外光谱Key words
Ethyl acrylate-methyl methacrylate copolymer aqueous dispersion/structure/mid infrared spectroscopy分类
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李敏慧,段冰洁,于锐,李威,刘畅,刘佳灿,孔晓美,于宏伟..丙烯酸乙酯-甲基丙烯酸甲酯共聚物结构中红外光谱研究[J].纺织科学与工程学报,2026,43(2):48-57,73,11.基金项目
河北省省级科技计划项目(25292701D),石家庄学院大学生创新创业训练计划项目(2SCXM0040,SCXM0568),石家庄市高等教育科学研究项目(20251039). （25292701D）
