WebMar 11, 2024 · The diffraction diagrams of the formed IC samples are presented in Figure 1, and the corresponding percent crystallinity is shown in Table 1. Based on the results, all ICs retained their original crystalline structure upon complexation regardless of the original starch type and mass ratio between starch and thymol. ... On DSC thermograms ... WebIndependent differential scanning calorimetry (DSC) crystallinity measurements were in broad agreement with the Raman measurements based on the normalized intensity of the 809 cm(-1) Raman band. By comparing the Raman with the DSC data a new value for the theoretical heat of fusion for the 100% crystalline iPP has been proposed.

How do I calculate crystallinity using a DSC curve?

WebApr 13, 2024 · The DSC curves were recorded on a TA Instruments Q2000 DSC cooled by an RCS 90 cooling unit. In most cases the samples were cooled at 2 °C min −1 and … WebUsing these values, the %crystallinity equation given above can be used to calculate approximate the crystalline and amorphous content of the sample. In this case, the area … northern tool charlotte nc

4.5: Crystallinity in Polymers - Chemistry LibreTexts

WebDSC of LDPE and HDPE. According to the literature, the energy requirement to melt a 100 percent crystalline polyethylene would be 290 J/g. To accurately measure the degree of crystallinity for a particular polyethylene, we compare the heat of fusion for the melting process to this ideal value of 290 J/g. WebTable 3 contains characteristics of the studied polymers extracted from the DSC data. The degree of crystallinity according to DSC, DC cal, is found relative to the molar enthalpy of fusion for trans PCDD crystals, Δ H µ, which is equal to 38,460 and 37,620 J/mol at 85% and 80% trans C=C content, respectively . WebFor example, we can verify if the parts are the proper material using FT-IR, check for contamination using DSC, and then determine if the parts are degraded using the melt … northern tool charlotte