Aggregation induced emission and amplified explosive detection of tetraphenylethylene-substituted polycarbazoles

被引：127

作者：

Dong, Wenyue ^{[1
,2
]}

Fei, Teng ^{[3
]}

Palma-Cando, Alex ^{[1
,2
]}

Scherf, Ullrich ^{[1
,2
]}

机构：

[1] Berg Univ Wuppertal, Macromol Chem Grp Buwmakro, D-42097 Wuppertal, Germany

[2] Berg Univ Wuppertal, Inst Polymer Technol, D-42097 Wuppertal, Germany

[3] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China

来源：

POLYMER CHEMISTRY | 2014年 / 5卷 / 13期

关键词：

ELECTROLUMINESCENT CONJUGATED POLYMERS; CHEMICAL SENSORS; ENHANCED EMISSION; SOLID-STATE; LIGHT; CHEMOSENSORS; CARBAZOLE; COPOLYMERS; MOIETIES; POLYMERIZATION;

D O I：

10.1039/c4py00251b

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理];

摘要：

Novel conjugated polymers based on 3,6-carbazole repeat units were synthesized by nickel-catalyzed Yamamoto coupling under microwave heating. The resulting poly(3,6-carbazole)s contain tetraphenylethylene (TPE) units in their side chains. The resultant polymers show aggregation induced emission (AIE) behavior. Hereby, the photoluminescence (PL) intensity of PCzTPE0.5 in 90% water-THF is 35 times higher than that in pure THF, connected to the introduction of TPE side chains. The ability of polymer PCzTPE0.5 for explosive sensing was also studied. A maximum Stern-Volmer quenching constant of 1.26 x 10(6) M-1 was observed for PL quenching of PCzTPE0.5 aggregates by trinitrobenzene (TNB). A solid state paper strip test based on PCzTPE0.5 and PCzTPE also demonstrates effective PL quenching towards both TNB vapor and solution.

引用

页码：4048 / 4053

页数：6

共 54 条

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