synthesized. This new UV absorber exhibits a wider absorption range and better thermal stability compared to either Tinuvin‐PS and HBP and a higher absorption efficiency in the UV‐C range. Theoretical studies reveal that the UV‐C absorption arises from the electron density transfer from the Tinuvin‐PS moiety to the HBP moiety and the enhanced absorption efficiency is ascribed to the presence of the carbonyl's
基于两个已公开的紫外线吸收分子2-(5'-叔-丁基-2'-羟基)苯并三唑(Tinuvin-PS)和羟基
二苯甲酮(HBP),两者均具有特征吸收能力,一种精制的UV吸收剂2-(3'合成了苯甲酰基-2'羟基-5 '
叔丁基苯基)苯并三唑。与Tinuvin‐PS和HBP相比,这种新型UV吸收剂具有更宽的吸收范围和更好的热稳定性,并且在UV–C范围内具有更高的吸收效率。理论研究表明,UV-C吸收是由于电子密度从Tinuvin-PS部分转移到HBP部分而引起的,吸收效率的提高归因于羰基π系统的存在。