Evaluation of fabricated IR absorbing films of polymer nanocapsules

The objective of this study was to synthesize polymeric nanocapsules by microemulsions method that doping by different amines compounds to improve the properties of the polymer which consists of (dispersed) phase from ethyl acetate it inside, and the polymers is dissolved in it. In external (continuous) phase from water, these mix the two phases by surfactant etyltri methyl ammonium bromide (CTABr). In this study, the structures of polymer nanocapsules were identified by using X-Ray diffractogram (XRD) to calculate crystallite sizes (D) of the samples that were calculated using the Scherrer formula ranging up to the nano-size 17-50 nm. Likewise, studying the surface forms, morphology, and diameters of polymer nanoparticles by Scanning Electron Microscope (SEM) technology as well as the morphology of nanocapsule with highresolution images of the sample, these images gave spherical and irregular shapes with the particles size and different diameter of 20-200 nm. Besides, using Infrared Spectroscopy (FT-IR) to characterize the functional groups of polyacrylicnanocapsule doped, proved the existence of new functional group C=O amide back to the reaction between polymer and amines. Proved the films of polymer pure and doped polymer nanocapsule have absorption photothermal properties by capability to absorb IR rays and calculate the temperatures by used thermometer device T-type to measure the amount of IR rays. The disparity in temperature back to pulling and propellant groups which direct the samples to absorb more or less IR rays. The nano samples are arranged according to their absorption of sunlight and IR lamp. They are arranged from the highest absorption to the lowest to sample of nanocapsul in IR sunlight and IR lamp: SA1 SA2 SA3 SA4 SA.