| Authors | حسین نعیمی,مریم فرحناک ضرابی |
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| Journal | RSC ADV |
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| Page number | 7400 |
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| Volume number | 9 |
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| IF | 3.049 |
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| Paper Type | Full Paper |
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| Published At | 2019-02-28 |
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| Journal Grade | Scientific - research |
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| Journal Type | Electronic |
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| Journal Country | Iran, Islamic Republic Of |
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| Journal Index | JCR |
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Abstract
A novel acid catalyst was prepared based on growing hyperbranched polyglycerol (HPG) on the surface of
graphene oxide. Then, the hydroxyl groups of HPG on graphene oxide were functionalized by sulfonate
groups to form an acid catalyst. The catalyst displayed a good loading level of acidic groups on the
surface because of coating graphene oxide with HPG. This new catalyst is demonstrated to be highly
effective in the preparation of benzo[a]pyrano[2,3-c]phenazine dyes.
