Conclusions The composition an unknown polymer sample can be easily characterized by means of combined TGA/DSC-FTIR measurements. Table 1 summarizes the results obtained from the TGA measurement and the IR spectra for the particular sample investigated. The polymers in the unknown material were identif...
FTIR spectra of standard poly (3-hydroxybutyric acid) (B) and the polymer isolated from the reactor (A).doi:10.1371/journal.pone.0116230.g007Jena JyotsnaraniK. RavindraD. AnshumanP. SonyDas TruptiPLOS ONE
FTIR Spectra of Milled Wood Lignins and Lignin Polymer Models (DHP's) with Enhanced Resolution Obtained by Deconvolution. J. Wood Chem. Technol. 1988, 8, 502-522.Faix, O.; Banhoff, O., 1988: FTIR spectra of milled wood lignins and lignin polymers models (DHP´s) with enhan- ced ...
The diffusion of low molecular weight penetrants through films of a PMDA-ODA polyimide and a corresponding polyimide-silica bicontinuous nanocomposite (organic–inorganic hybrid) was monitored using time-resolved FTIR spectroscopy and gravimetric analysis. A reacting and a non-reacting penetrant, ammonia ...
Figure 3. FTIR spectra of ATP and PPy/Ag/ATP nanocomposite (S-3). note that the N/Ag atomic ratio gradually decreased with increasing feeding concentration of ATP, although the initial feeding ratio of pyrrole/AgNO3 was kept as a constant (Table 2). Electrical conductivity. The ...
b FTIR spectra, c thermogravimetry curves, and d XRD patterns of PUU-X. Full size image Table 1 Physical and chemical data of the synthesized PUU-X samples Full size table Mechanical properties of PUU-X. The enhancement of mechanical properties in PUU-X by hydrogen and coordination bonds was...
TPUs were analyzed by ATR-FTIR (NicoletTM iS50, Thermo Fisher Scientific) before and after HME, as well as hot pressing. Spectra was acquired at 4000–525 cm−1 wavenumber with 4 cm−1 spectral resolution at room temperature. 16 co-added scans were averaged. Potassium bromide (KBr...
Fourier transform infrared spectroscopy (FTIR) indicated that these hybrid polymers are held together by electrostatic, H-bonding, and pi–pi interactions. The circular dichroism spectra of the hybrid polymers indicated that the dsRNA underwent a small distortion in conformation from the canonical A-...
FTIR spectra were recorded on a Bruker Vertex 70 spectrometer. Direct examination of the products was done by attenuated total reflectance (ATR) using the Bruker ATR platinum set-up. The recorded spectra were analyzed by the OPUS software Absorption values are expressed as wavenumbers (cm−1);...
In order to obtain the independent variables consisting the input, the samples were examined by Thermogravimetric Analysis and Differential Thermal Analysis TGA/DTG, and FTIR spectra. Large-scale fire tests were not conducted, and the sample size were as small as a few milligrams to perform TGA ...