Tetraphenylethylene (TPE)-containing 4-amino-2,2,6,6-tetramethylpiperidine-1-oxyl (NH₂-TEMPO) and 3-(((2-cyanopropan-2-yl)oxy)(cyclohexyl)amino)-2,2-dimethyl-3-phenylpropanenitrile (Dispolreg 007) were synthesized and utilized to mediate/initiate NMP in both homogeneous and heterogeneous polymerization systems. The introduction of TPE groups decreased the C–O bond dissociation energy (BDE) of NH₂-TEMPO-St and led to more efficient NMP with a higher reaction rate, even at lower temperatures. Moreover, for both solution polymerization and miniemulsion polymerization, quantitative information of the polymerization process could be easily acquired with the naked eye without destroying the reaction system, by building the relationship between the increased photoluminescence (PL) intensity of the system and monomer conversion as well as the molecular weight (M_n).

中文翻译：

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用于硝基氧介导的均相和非均相聚合的新型四苯基乙烯（TPE）-官能化的氮氧化物/烷氧基胺

含四苯基乙烯（TPE）的4-氨基-2,2,6,6-四甲基哌啶-1-氧基（NH ₂ -TEMPO）和3-（（（（2-cyanopropan-2-yl）oxy）（cyclohexyl）amino）合成了-2,2-二甲基-3-苯基丙腈（Dispolreg 007），并用于在均相和非均相聚合体系中介导/引发NMP。TPE基团的引入降低了NH ₂的C–O键解离能（BDE）-TEMPO-St，即使在较低温度下，也能以更高的反应速率产生更有效的NMP。此外，对于溶液聚合和细乳液聚合，通过建立体系增加的光致发光（PL）强度与单体转化率之间的关系，也可以用肉眼轻松地获得聚合过程的定量信息，而不会破坏反应系统作为分子量（M _n）。