Using silane coupling agents to prepare raspberry-shaped polyaniline hollow microspheres with tunable nanoshell thickness

Preparation, characterization and properties of amine-functionalized silicon carbide/polyimide composite films

“…14 However, the surfaces of SiC NP tend to be very smooth and inactive, making the modication and improvement of surface activity by graing difficult. 15 In particular, when the SiC content is above 2 wt%, agglomerates of SiC NP limit the improvement in mechanical properties of the SiC/PI composites. 16 In the present study, activated SiC-SiO 2 NP were prepared by rst annealing at 700 C for 2 h. This process overcame the presence of inactivated surfaces, which limited the original SiC NP by thermal oxidation of the SiC NP surface.…”

In Situ Surface Engineering of Mesoporous Silica Generates Interfacial Activity and Catalytic Acceleration Effect

“…Figure a exhibits the spectra of MS, Pd/MS, MS-PAP-20, and Pd/MS-PAP-20. The broad absorption peaks at 3446 and 1084 cm –1 can be attributed to the surface-adsorbed water, −OH, and Si–O–Si stretching vibrations. , For MS-PAP-20 and Pd/MS-PAP-20 samples, the peaks at around 2933, 2858, and 1411 are ascribed to the C–H asymmetric, C–H symmetric, and C–H bending vibrations of −CH 2 groups, respectively, whereas the peak at 695 cm –1 is attributed to the C–H out-of-plane bending vibration of the benzene ring in the PAPTMS units . The band at 1608 cm –1 can be assigned to the N–H deformation vibration, confirming the presence of amine groups. , The loading amount and the thermal stability of the phenylaminopropyl (PAP) organic component are evaluated using TGA under a nitrogen atmosphere.…”

Facile synthesis of raspberry-like aniline oligomers with excellent adsorption–desorption properties

“…700 nm. 21 The reducing ability of the aniline oligomer can be utilized to construct metal-polymer composites. [29][30][31] For example, incubating the aniline oligomer in silver nitrate solution resulted in the Ag-aniline oligomer composites with Ag nanoparticles (d av = 3.6 nm) decorated on the whole surface or in the inner part of the aniline oligomer (Fig.…”

“…To achieve a raspberry-like nanostructure, a template was often used to provide sites for the polymerization of aniline to form nanoparticles that finally assemble into the raspberry-like structure. 21,22 However, the size of the product typically fell in the range of several hundred nanometers to a few micrometers and a template-removing process was required. Herein, we carried out the polymerization of aniline by using copper acetate as an oxidant in the presence of p-phenylenediamine without using any template.…”