Topic
Differential scanning calorimetry
About: Differential scanning calorimetry is a research topic. Over the lifetime, 50315 publications have been published within this topic receiving 1152335 citations. The topic is also known as: DSC.
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TL;DR: The crystalline structures associated with melting and crystallization behaviors of monodisperse linear polyethylene confined in cylindrical nanopores were investigated by X-ray diffraction and differential scanning calorimetry as mentioned in this paper.
Abstract: The crystalline structures associated with melting and crystallization behaviors of monodisperse linear polyethylene confined in cylindrical nanopores were investigated by X-ray diffraction and differential scanning calorimetry. The crystalline structures, melting, and crystallization behaviors of PE under the imposed cylindrical confinement were noticeably different from those of the bulk state. The isothermal crystallization experiments showed that the overall crystallization of polyethylene in cylindrical nanopores was dominated by the nucleation rather than the growth of crystallites. The c- and a-axes of orthorhombic PE crystals developed in nanoporous alumina were preferentially oriented perpendicular to the long axis of cylindrical nanopore while the b-axis was parallel to the pore axis. The melting temperature of polyethylene in the nanopores was substantially depressed, and it was analyzed with the Thomson−Gibbs equation. The crystallinity of linear polyethylene in cylindrical nanopores was less ...
175 citations
TL;DR: In this article, the influence of both temperature and CYD concentration on complex solubility was studied using the method of Higuchi and Connors (Adv. Anal. Chem., 4 (1965) 117-212).
175 citations
TL;DR: In this paper, the authors quantitatively measured the heat capacity of pure dry silk fibroin films cast from water solution, and containing bound water, and found that the total solid specific heat capacity is in good agreement with the calculated solid baseline in the low-temperature region below about 240 K.
175 citations
TL;DR: In this paper, a series of new organic semiconductors for organic thin-film transistors (OTFTs) using dithieno[3,2-b:2,3'-d]thiophene as the core are synthesized.
Abstract: A series of new organic semiconductors for organic thin-film transistors (OTFTs) using dithieno[3,2-b:2',3'-d]thiophene as the core are synthesized. Their electronic and optical properties are investigated using scanning electron microscopy (SEM), X-ray diffraction (XRD), UV-vis and photoluminescence spectroscopies, thermal gravimetric analysis (TGA), and differential scanning calorimetry (DSC). The compounds exhibit an excellent field-effect performance with a high mobility of 0.42 cm 2 V - 1 s - 1 and an on/off ratio of 5 ×10 6 . XRD patterns reveal these films, grown by vacuum deposition, to be highly crystalline, and SEM reveals well-interconnected, microcrystalline domains in these films at room temperature. TGA and DSC demonstrate that the phenyl-substituted compounds possess excellent thermal stability. Furthermore, weekly shelf-life tests (under ambient conditions) of the OTFTs based on the phenyl-substituted compounds show that the mobility for the bis(diphenyl)-substituted thiophene was almost unchanged for more than two months, indicating a high environmental stability.
175 citations
TL;DR: In this article, a twin-screw cooker extruder was used to extrude granular particles of gluten, wheat starch, and waxy maize starch, conditioned to a range of moisture contents.
175 citations