SYNTHESIS,POLYMERIZATION AND FLUORESCENCE BEHAVIOR OF 3-METHACRYLAMIDO-9-ETHYLCARBAZOLE

GAO Qingyu; CUI Yuanchen; LIU Cuiyun; YU Xianda; DU Fusheng

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SYNTHESIS,POLYMERIZATION AND FLUORESCENCE BEHAVIOR OF 3-METHACRYLAMIDO-9-ETHYLCARBAZOLE

Research Bulletin | 更新时间：2021-03-19

- SYNTHESIS,POLYMERIZATION AND FLUORESCENCE BEHAVIOR OF 3-METHACRYLAMIDO-9-ETHYLCARBAZOLE
- Acta Polymerica Sinica Issue 3, Pages: 392-394(2001)
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- Published：20 June 2001，
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GAO Qingyu, CUI Yuanchen, LIU Cuiyun, YU Xianda, DU Fusheng. SYNTHESIS,POLYMERIZATION AND FLUORESCENCE BEHAVIOR OF 3-METHACRYLAMIDO-9-ETHYLCARBAZOLE. [J]. Acta Polymerica Sinica (3):392-394(2001)
DOI：

GAO Qingyu, CUI Yuanchen, LIU Cuiyun, YU Xianda, DU Fusheng. SYNTHESIS,POLYMERIZATION AND FLUORESCENCE BEHAVIOR OF 3-METHACRYLAMIDO-9-ETHYLCARBAZOLE. [J]. Acta Polymerica Sinica (3):392-394(2001) DOI：

摘要

含供电子芳杂环的丙烯酰类功能性单体的合成、聚合及光化学行为一直吸引着人们的兴趣 .原因之一是由于这类单体可用一般的自由基引发剂引发聚合

其聚合物表现出包括荧光及光引发行为的光化学性质甚被瞩目[1

2 ] .在以往的工作中发现

这类给电子性生色团的丙烯酰类单体在相同生色团浓度下的荧光强度明显低于其聚合物或饱和模型化合物

即表现出荧光结构自猝灭效应(ＳＳＱＥ) [3～ 5] .咔唑是一个强给电子性芳香杂环化合物 .虽?...

Abstract

An acrylic monomer bearing carbazole-moiety

3-methacrylamido-9-ethylcarbazole (MAECz) was synthesized and polymerized radically．Fluorescence studies showed that at the same chromophore concentration

the fluorescence intensity of the polymer (P(MAECz) was much stronger than that of the monomer．This can be explained by what we termed fluorescence“Structural Self-Quenching Effect”(SSQE). The stem—volmer constants of P(MAECz) in solution quenched by several electron deficient vinyl monomers were obtained．It was found that the quenching efficiency of the quenchers was relevant to the degree of the electron deficiency. Also

the photopolymerization of acrylonitrile (AN) initiated by MAECz was investigated kinetically and a tentative initiation mechanism was proposed．

关键词

3甲基丙烯酰胺基9乙基咔唑荧光光谱结构自猝灭效应光聚合

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