کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10601650 | 982350 | 2013 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Characterization of cellulose acetates according to DS and molar mass using two-dimensional chromatography
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Characterization of cellulose acetates according to DS and molar mass using two-dimensional chromatography Characterization of cellulose acetates according to DS and molar mass using two-dimensional chromatography](/preview/png/10601650.png)
چکیده انگلیسی
A two-dimensional liquid chromatographic method (2D LC) was developed to analyze the heterogeneities of cellulose acetates (CA) in the DS-range DSÂ =Â 1.5-2.9 with respect to both, molar mass and degree of substitution (DS). The method uses gradient liquid chromatography (HPLC) as the first dimension in order to separate by DS followed by separation of the different fractions by size (SEC) in the second dimension. The 2D experiments revealed different correlations between gradient and SEC elution volume. These correlations might arise from differences in the synthetic conditions. The newly developed 2D LC separation therefore provides new insights into the heterogeneity of CAs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 98, Issue 2, 6 November 2013, Pages 1430-1437
Journal: Carbohydrate Polymers - Volume 98, Issue 2, 6 November 2013, Pages 1430-1437
نویسندگان
Hewa Othman Ghareeb, Wolfgang Radke,