<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Novel Conjugated Polymers: Synthesis and\r\nApplication as Sensor Arrays for Detection and\r\nDiscrimination of Nitroaromatics"^^ . "This thesis evaluates three novel synthesized conjugated polymer series with respect to their\r\nsensitivity and selectivity in the detection of nitroaromatic analytes, especially in aqueous\r\nenvironments.\r\nCentral building blocks of the polymers are functionalized truxene or tetraphenylethene\r\ncenters, which are polycondensed with different diethinylaromatics by Sonogashira cross-\r\ncoupling.\r\nIn a first explorative study, Truxene-based hyper-branched polymers (HCPs) were compared\r\nwith related linear rod-shaped poly(p-phenylenethynylenes) (PPEs) with respect to their\r\nsensor performance of nitroaromatics (Chapter 2). By encapsulation with amphiphilic F-127\r\nin water-soluble micelles, 14 nitroaromatics could be distinguished with 100% accuracy in\r\nfluorescence quenching experiments. The HCPs display a better sensor performance than the\r\nsensor system for nitroaromatics previously known from PPE (Chapter 2). To increase the\r\nsensor performance, tetraphenylethene cores (TPEs) replaced the truxene units in the\r\npolymers in a follow-up study (Chapter 3). TPEs use aggregate-induced emission to detect\r\nthe analytes. A sensor field based on four TPE polymers was able to detect and distinguish\r\nnitroaromatics in water with excellent sensitivity (ppm range) compared to HCP or PPE\r\nsystems (Chapter 3). This improved system is able to detect the regioisomers of\r\nnitroaromatics in a specific way. Finally, the performance of the TPE system was improved\r\nby varying the TPE moiety with amino or nitro groups for aqueous detection (Chapter 4). The\r\nfunctional TPE polymers (F-TPEPs) also exhibit aggregate-induced emission, with enhanced\r\npH-specific (amino groups) or solvatochrome (nitro groups) sensor sensitivity. The presence\r\nof amino groups improves the sensory properties of F-TPEPs in the aqueous nitroaromatic\r\nsystem. The challenge of the detection of nitroaromatics in water could be mastered by the\r\nsystematic development of F-TPEPs sensor system from the well-known PPE sensor."^^ . "2019" . . . . . . . "Wei"^^ . "Huang"^^ . "Wei Huang"^^ . . . . . . "Novel Conjugated Polymers: Synthesis and\r\nApplication as Sensor Arrays for Detection and\r\nDiscrimination of Nitroaromatics (PDF)"^^ . . . "Dissertation of Wei Huang.pdf"^^ . . . "Novel Conjugated Polymers: Synthesis and\r\nApplication as Sensor Arrays for Detection and\r\nDiscrimination of Nitroaromatics (Other)"^^ . . . . . . "indexcodes.txt"^^ . . "HTML Summary of #26604 \n\nNovel Conjugated Polymers: Synthesis and \nApplication as Sensor Arrays for Detection and \nDiscrimination of Nitroaromatics\n\n" . "text/html" . . . "500 Naturwissenschaften und Mathematik"@de . "500 Natural sciences and mathematics"@en . . . "540 Chemie"@de . "540 Chemistry and allied sciences"@en . .