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首页> 外文期刊>Journal of Applied Polymer Science >Characterization of Bisphenol A-Based Epoxy Resins by HPLC,GPC,GPC-MALLS,VPO,Viscometry,and End Group Analysis:On the Identification of 2,3-Dihydroxypropyl-Containing Compounds,Determination of Molar Mass Distribution,and Branching
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Characterization of Bisphenol A-Based Epoxy Resins by HPLC,GPC,GPC-MALLS,VPO,Viscometry,and End Group Analysis:On the Identification of 2,3-Dihydroxypropyl-Containing Compounds,Determination of Molar Mass Distribution,and Branching

机译：HPLC，GPC，GPC-MALLS，VPO，粘度分析和端基分析表征双酚A基环氧树脂：关于含2,3-二羟丙基化合物的鉴定，摩尔质量分布的测定和分支

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Reversed-phase high performance liquid chromatography (HPLC),conventional gel permeation chromatography (GPC),and gel permeation chromatography coupled with a multiangle laser light scattering photometer (GPC0MALLS) were used for the analysis of epoxy resins based on bisphenol A.Compounds containing 2,3-dihydroxypropyl group were identified in HPLC chromatograms by means of the derivatization of sample by acetone.The presence of branched molecules was proved by GPC-MALLS using a molar mass versus root mean square 9RMS) radius plot or molar mass versus elution volume plot.The molar mass distribution determined by HPLC was compared with that obtained by GPC-MALLS.Molar mass averages measured by means of GPC,GPC-MALLS,vapor pressure osmometry (VPO),and end group analysis (EG) were compared and the differences of results obtained by particular methods were discussed.An appropriate GPC calibration was found on the basis of literature data and the comparison of molar mass averages measured by GPC,VPO,and GPC-MALLS.The refractive index increment of epoxy resins was determined.
机译：反相高效液相色谱（HPLC），常规凝胶渗透色谱（GPC）和凝胶渗透色谱结合多角度激光散射光度计（GPC0MALLS）用于分析基于双酚A的环氧树脂。含2的化合物通过丙酮衍生化样品在HPLC色谱图中鉴定出3,3-二羟丙基基团。使用摩尔质量对均方根的9RMS）半径图或摩尔质量对洗脱体积图，通过GPC-MALLS证明了支链分子的存在比较了HPLC测定的摩尔质量分布与GPC-MALLS测定的摩尔质量分布。比较了GPC，GPC-MALLS，蒸汽渗透压（VPO）和端基分析（EG）测定的摩尔质量平均值。讨论了通过特定方法获得的结果。基于文献数据和测得的摩尔质量平均值的比较，找到了合适的GPC校准b y GPC，VPO和GPC-MALLS。确定环氧树脂的折射率增量。

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