苯基硒代马来酰亚胺与苯乙烯的共聚反应及其氧化消除行为
Copolymerization of Phenylselenide-Substituted Maleimide with Styrene and Its Oxidative Elimination Behavior.
作者信息
Liu Qian, Lv Xinghua, Li Na, Pan Xiangqiang, Zhu Jian, Zhu Xiulin
机构信息
State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
出版信息
Polymers (Basel). 2018 Mar 15;10(3):321. doi: 10.3390/polym10030321.
Selenium-containing monomer monophenyl maleimide selenide (MSM) was synthesized and copolymerized with styrene (St) using reversible addition-fragmentation chain transfer (RAFT) polymerization. Copolymers with controlled molecular weight and narrow molecular weight distribution were obtained. The structure of the copolymer was characterized by nuclear magnetic resonance, matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrum, Fourier transform infrared spectroscopy (FT-IR) and Ultraviolet⁻visible spectroscopy (UV-vis) spectroscopy. The copolymer can be oxidized by H₂O₂ to form carbon-carbon double bonds within the main chain due to the unique sensitivity of selenide groups in the presence of oxidants. Such structure changing resulted in an interesting concentration-related photoluminescence emission enhancement.
含硒单体单苯基马来酰亚胺硒化物（MSM）通过可逆加成-断裂链转移（RAFT）聚合反应合成，并与苯乙烯（St）共聚。得到了分子量可控且分子量分布窄的共聚物。通过核磁共振、基质辅助激光解吸/电离飞行时间（MALDI-TOF）质谱、傅里叶变换红外光谱（FT-IR）和紫外可见光谱（UV-vis）对共聚物的结构进行了表征。由于硒化物基团在氧化剂存在下具有独特的敏感性，该共聚物可被H₂O₂氧化，在主链内形成碳-碳双键。这种结构变化导致了有趣的与浓度相关的光致发光发射增强。
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