TY - JOUR A1 - Chabbah, T. A1 - Chatti, S. A1 - Zouaoui, F. A1 - Jlalia, A. A1 - Gaiji, H. A1 - Abderrazak, H. A1 - Casablanca, H. A1 - Mercier, R. A1 - Weidner, Steffen A1 - Errachid, A. A1 - Marestin, C. A1 - Jaffrezic-Renault, N. T1 - New poly(ether-phosphoramide)s sulfides based on green resources as sensitive films for the specific impedimetric detection of nickel ions JF - Talanta N2 - For the development of selective and sensitive chemical sensors, we have developed a new family of poly(etherphosphoramide) polymers. These polymers were obtained with satisfactory yields by nucleophilic aromatic polycondensation using isosorbide as green resources, and bisphenol A with two novel difluoro phosphinothioic amide monomers. Unprecedented, the thiophosphorylated aminoheterocycles monomers, functionalized with two heterocyclic amine, N-methylpiperazine and morpholine were successfully obtained by nucleophilic substitution reaction of P(S)–Cl compound. The resulting polymers were characterized by different analytical techniques (NMR, MALDI–ToF MS, GPC, DSC, and ATG). The resulting partially green polymers, having tertiary phosphine sulfide with P–N side chain functionalities along the main chain of polymers are the sensitive film at the surface of a gold electrode for the impedimetric detection of Cd, Ni, Pb and Hg. The bio-based poly(etherphosphoramide) functionalized with N-methylpiperazine modified sensor showed better analytical performance than petrochemical based polymers for the detection of Ni2+. A detection limit of 50 pM was obtained which is very low compared to the previously published electrochemical sensors for nickel detection. KW - Poly(ether-phosphoramide)s sulfides KW - Green chemistry KW - Polymer film KW - MALDI TOF MS PY - 2022 DO - https://doi.org/10.1016/j.talanta.2022.123550 VL - 247 IS - 123550 SP - 1 EP - 9 PB - Elsevier B.V. AN - OPUS4-54980 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Michalchuk, Adam A1 - Emmerling, Franziska T1 - Time-Resolved InSitu Monitoring of Mechanochemical Reactions JF - Angewandte Chemie International Edition N2 - Mechanochemical transformations offer environmentally benign synthesis routes, whilst enhancing both the speed and selec-tivity of reactions. In this light, mechanochemistry promises to trans-form the way in which chemistry is done in both academia and indus-try but is greatly hindered by a current lack in mechanistic understand-ing. The continued development and use of time-resolved in situ(TRIS) approaches to monitor mechanochemical reactions provides a new dimension to elucidatethese fascinating transformations. We here discuss recent trends in method development that have pushed the boundaries of mechanochemical research. New features of mech-anochemical reactions obtained by TRIS techniques are subse-quently discussed, shedding light on how different TRISapproaches have beenused. Emphasis is placed on the strength of combining complementary techniques. Finally, we outline our views for the po-tential of TRIS methods in mechanochemical research, towards es-tablishing a new, environmentally benign paradigm in the chemical sciences KW - Mechanochemistry KW - Material synthesis KW - Green chemistry PY - 2022 DO - https://doi.org/10.1002/anie.202117270 SN - 1433-7851 SP - 1 EP - 15 PB - Wiley-VCH CY - Weinheim AN - OPUS4-54321 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Belenguer, A A1 - Michalchuk, Adam A1 - Lampronti, G A1 - Sanders, J T1 - Using solid catalysts in disulfide-based dynamic combinatorial solution- and mechano-chemistry JF - Chemistry Sustainable Chemistry N2 - We here show for the first time that solid amines can act as catalysts for disulfide-based dynamic combinatorial chemistry by ball mill grinding. The mechanochemical Equilibrium for the two disulfide reactions studied is reached within one to three hours using ten different amine catalysts. This contrasts with the weeks to months to achieve solution equilibrium for most solid amine catalysts at 2%M at 2mM concentration in a suitable solvent. The final mechanochemical equilibrium is independent of the catalyst used, but varies with other ball mill grinding factors such as the presence of traces of solvent. The different efficiencies of the amines tested are discussed. KW - Mechanochemistry KW - Green chemistry KW - Catalysis PY - 2022 DO - https://doi.org/10.1002/cssc.202102416 SN - 1864-5631 VL - 15 IS - 3 SP - 1 EP - 10 PB - Wiley AN - OPUS4-53930 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -