کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5180048 | 1502530 | 2015 | 9 صفحه PDF | دانلود رایگان |
- Acceptor-substituted polycarbazoles and polytriphenylamines showing both AIE and ICT behavior have been synthesized.
- Dispersions containing polymer aggregates have been used for optical detection of 1,3,5-trinitrobenzene.
- Amplified PL quenching was observed with a maximum PL quenching constant of 5.5Â ÃÂ 105Â Mâ1.
- One polymer (PTPATPAN) was used as PL-sensitive dopant in the Tg-detection of polystyrene.
Acceptor-substituted polycarbazoles (PCzTPAN) and polytriphenylamines (PTPATPAN) bearing electron-deficient 2,3,3-triphenylacrylonitrile (TPAN) side groups have been successfully synthesized. Both of them are aggregation-induced emission (AIE)-active and show intramolecular charge transfer (ICT) behavior. PCzTPAN and PTPATPAN aggregates in 90% water/THF were used for the detection of 1,3,5-trinitrobenzene (TNB) as prototypical nitroaromatic compound. They show amplified PL quenching upon addition of TNB with a maximum quenching constant of 5.5Â ÃÂ 105Â Mâ1. As additional application example, the detection of the glass transition temperature of polystyrene (PS) was accomplished for PTPATPAN blended into PS at doping concentrations of 0.1-1.0Â wt%.
Polycarbazoles (PCzTPAN) or polytriphenylamines (PTPATPAN) decorated with 2,3,3-triphenylacrylonitrile side groups have been synthesized and characterized for the occurrence of aggregation-induced emission (AIE) and intramolecular charge transfer (ICT) effects. PCzTPAN and PTPATPAN dispersions in 90% water/THF were further used for the high sensitivity detection of 1,3,5-trinitrobenzene (TNB) as prototypical nitroaromatic analyte, showing amplified PL quenching with a maximum quenching constant of 5.5Â ÃÂ 105Â Mâ1. Moreover, PTPATPAN was used as AIE-active fluorescent probe for detection of the glass transition temperature of a polystyrene (PS) film, exhibiting a very reliable response to the glass transition of PS, up to low probe concentration of 0.1Â wt%.191
Journal: Polymer - Volume 76, 12 October 2015, Pages 173-181