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| Synthesis and Application of Yellowing Inhibitor based on Naphthalimide Fluorescent Brightening Agent |
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| DOI： |
| Key Words:yellowing inhibitor; naphthalimide fluorescent brightening agent; 2,4-dihydroxy-benzophenone; brightness stability |
| Fund Project:本课题为陕西省自然科学基金项目——高分子FBS的制备及作用机理研究，项目编号：2009JM2010。 |
| Author Name | Affiliation | | 张光华 | 陕西科技大学教育部轻化工化学与技术重点实验室，陕西西安，710021 | | 郭锦鸽* | 陕西科技大学教育部轻化工化学与技术重点实验室，陕西西安，710021 | | 徐海龙 | 陕西科技大学教育部轻化工化学与技术重点实验室，陕西西安，710021 | | 刘国俊 | 陕西科技大学教育部轻化工化学与技术重点实验室，陕西西安，710021 | | 赵 方 | 陕西科技大学教育部轻化工化学与技术重点实验室，陕西西安，710021 |
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| Abstract: |
| The naphthalimide fluorescent brightening agent was synthesized through amidation of 4-bromo-1,8-naphthalic anhydride and ethanolamine, and introducing ethoxy electron-donating group into 4-bit of naphthalene ring. With cyanuric chloride as the crosslinking monomer, a new yellowing inhibitor for high-yield pulp was synthesized through introducing the ultraviolet absorber 2,4-dihydroxy-benzophenone and naphthalimide fluorescent brighteners to the same molecule. The molecular structure was characterized by IR spectra; the yellowing inhibition mechanism was investigated through UV spectra and fluorescence spectra, their yellowing inhibition effect was studied by UV accelerated aging experiments. The results showed that the effect of the yellowing inhibitor was better than benzophenone monomer. |
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