Synthesis and characterization of magnetic and fluorescent styrene co‐polymer nanofiber

Abstract

Fluorescent and magnetic poly(styrene) (PS) based random co-polymer nanofiber was synthesized in a controlled manner via chemical polymerization in three steps. A fluorescent and magnetic nanohybrid {Fe 3 O 4 /Congored (CR)} was separately prepared and chemically grafted onto the epichlorohydrin (ECH) units of the random co-polymer. Characterizations of the above synthesized polymers were done with the help of Fourier transform infrared (FTIR) spectroscopy, UV-visible spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, fluorescence emission spectroscopy, field emission scanning electron microscopy (FESEM), scanning electron microscopy (SEM), vibrating sample magnetometer (VSM) measurement, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and gel permeation chromatography (GPC) like analytical techniques. The FESEM results indicated that after the grafting of nanohybrid onto the random co-polymer backbone, the polymer exhibited a nanofiber like morphology. Due to the surface functionalization and encapsulation reactions, the magnetic moment value of the nanohybrid and its nanocomposites were found to be reduced. Synthesis and characterization of magnetic and fluorescent random co-polymer based nanofiber is the primary target of the present investigation and its application is extended to the catalysis field.

Synthesis, Characterization, Catalytic Reduction, and Splinting Activity of Poly(ε‐caprolactone–co–morpholine)/Ag Nanocomposite

“…A broad peak at 1440 cm −1 is ascribed to the C–H bending vibration. The ester C–O–C linkage is observed at 1025 cm −1 . The C–H out‐of‐plane bending vibration (OPBV) is noted at 885 cm −1 .…”

“…The ester C-O-C linkage is observed at 1025 cm −1 . 23,24 The C-H out-of-plane bending vibration (OPBV) is noted at 885 cm −1 . By observing these FTIR spectra, one can conclude that (i) in the MAA system, one S-H and one -CO 2 H group are present and any one of them can initiate the ROP of CL and Mor; and (ii) in the case of Mor, one -NH group is present and the same can act as an effective initiator toward the ROP of CL.…”