Preparation of heteroatom doped poly(o-phenylenediamine) fluorescent nanospheres: Tunable fluorescent spectrum and sensing performance

Theoretical calculation based synthesis of a poly(p-phenylenediamine)–Fe3O4composite: a magnetically recyclable photocatalyst with high selectivity for acid dyes

“…The peaks at 1239 and 1370 cm À1 were associated with C-N stretching in the benzenoid and quinoid imine units. [37][38][39][40] The peaks at 900 and 830 cm À1 can be attributed to the out-of-plane deformation of C-H on a 1, 2, 4-tetrasubstituted benzene ring, which implied that the polymers had a basic phenazine skeleton. Moreover, the bands at 754 and 593 cm À1 , characteristic of C-H out-ofplane bending vibrations of benzene nuclei in the phenazine skeleton, were also observed.…”

Quantum size effect of poly(o-phenylenediamine) quantum dots: From controllable fabrication to tunable photoluminescence properties

“…However, the absorption peak of p-p* transition red shifted obviously, the peak located at 414, 450 and 485 nm when the size is 2, 3 and 5 nm (PoQD-2, PoQD-3 and PoQD-4), respectively. It is clear that, the size of PoQDs have a strong effect on the p-p* transition between N and conjugated system [24,61]. Fig.…”

“…2a. It is clear that, the peaks at 758 and 563 cm À1 , characteristic of C-H out-of-plane bending vibrations of benzene nuclei in the phenazine skeleton [59,61]. The peaks at 902 and 831 cm À1 can be due to the out-ofplane deformation of C-H on a 1, 2, 4, 5-tetrasubstituded benzene ring, which implied that the polymers had the basic phenazine skeleton.…”

“…As sensitive fluorescent sensing platforms, these CPs nano-particles played an important role in fluorescence detection [57]. Moreover, we also have demonstrated the extensive application prospect of poly(pphenylenediamine) (PpPD) nano-particles in fluorescence detection [59][60][61][62][63][64]. The PpPD nanofibers show high-efficiency effects in enhancing the PL properties of thiols through the fluorescence resonance energy transfer [63].…”

Diaminium salt as reactive amphiphile for the synthesis of poly(m-phenylenediamine) and paraffin microencapsulation

“…Likewise, polyaniline (PAni), depending on polymerization conditions, PPDA presents oxidation isomers [4]. Modifications to polymerization conditions, dopant, oxidizing agent, or pH allows improving PPDA properties, which has permitted to develop applications in, for example, biosensing or metal ion adsorption [3,[5][6][7][8][9][10].…”