CAJ | 학술논문

以乙二醇二丙酸酯为重点,研究了乙二醇二羧酸酯的合成与性能。用乙二醇和丙酸直接酯化合成乙二醇二丙酸酯,在单因素实验的基础上,用正交法探讨较佳合成条件。采用红外、核磁对产物进行表征。结果表明,n(丙酸)∶n(乙二醇)=2．5∶1,对甲苯磺酸和甲苯分别占反应物总质量的1．0%和10%,反应时间3 h,乙二醇二丙酸酯收率可达87．4%。并结合其他乙二醇二羧酸酯,通过与常见高沸点溶剂性能的比较分析,表明该产物溶解力强,相对环保安全,在涂料、塑料等工业中具有潜在的应用价值。
이을이순이병산지위중점,연구료을이순이최산지적합성여성능。용을이순화병산직접지화합성을이순이병산지,재단인소실험적기출상,용정교법탐토교가합성조건。채용홍외、핵자대산물진행표정。결과표명,n(병산)∶n(을이순)=2．5∶1,대갑분광산화갑분분별점반응물총질량적1．0%화10%,반응시간3 h,을이순이병산지수솔가체87．4%。병결합기타을이순이최산지,통과여상견고비점용제성능적비교분석,표명해산물용해력강,상대배보안전,재도료、소료등공업중구유잠재적응용개치。
This article focuses on the preparation and properties of ethylene glycol dipropionate( EGDP) ,and EGDP was synthesized from ethanediol and propanoic acid by direct esterification method. For purpose of an optimum reaction conditions,orthogonal meth-od was employed on the basis of single-factor test. The structure of EGDP was determined by fourier transform infrared( FT-IR) and nuclear magnetic resonance(NMR). The results indicated that molar ratio of propionic acid to ethanediol was 2. 5∶1,p-toluene sul-fonic acid and toluene accounted for 1. 0%and 10%of the total mass,respectively,reaction time was 3. 0 h,the yield of EGDP was up to 87. 4%. Compared with the performance of common high boiling-point solvents,ethylene glycol dipropionate was environmen-tally friendly,which had high capability for dissolving,and had potential application in coating and plastic industry as well.