Thermal conductivity and thermal properties of POSS/polytriazole organic–inorganic hybrid material

Abstract

To decrease the thermal conductivity of polytriazole‐based fiber reinforced composites, an organic–inorganic POSS/polytriazole hybrid resin was obtained. The influences of various proportions of POSS on thermal conductivity and the thermal properties of hybrid materials were emphatically investigated. The results show that POSS incorporation resulted in not only decreased thermal conductivity but also increased Tg and thermal decomposition temperature. The enhancement was ascribed to the nanoscale effect of POSS structure and the fact that the POSS framework has a high heat resistance property. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41967.

Real‐time Raman spectroscopy measurements to study the uniaxial tension of isotactic polypropylene: a global overview of microstructural deformation mechanisms

“…Due to its recent instrumental improvements in particular the advent of laser radiations and the development of couple charge device detectors, Raman spectroscopy is adapted for polymer microstructure characterization with reliability, rapidity and commodity. [34][35][36] It gives access to the vibrational frequencies of the covalent chemical bonds of polymers and allows analysis of molecular species at different scales, from the chemical repetitive unit to the conformational architecture of the macromolecular chain. [37,38] In this paper, we propose to apply this experimental setup in a practical application, e.g.…”

Efficient, Robust, and Flame-Retardant Electrothermal Coatings Based on a Polyhedral Oligomeric Silsesquioxane-Functionalized Graphene/Multiwalled Carbon Nanotube Hybrid with a Dually Cross-Linking Structure

“…The dually cross-linking structure formed in the hybrid coating endows them with excellent service stability, and meanwhile, significantly improves their thermal resistance, as found in the foregoing Figures and . The effects of the POSS moieties on improving the thermal resistance of various polymer materials also have been intensively reported in the literature. − …”

Development of advanced antimicrobial and sterilized plasma polypropylene grafted muga (antheraea assama) silk as suture biomaterial

“…From Raman spectra presented in Figures 1a and 1b, it appears that the peak at 1246 cm 21 that corresponds to amorphous random coil conformation shifts toward lower wavenumber (1242 cm 21 ). [41][42][43] However, in the Raman spectrum of PP-AASF, the intensity of the peak is observed to be increased and the peak further shifts toward lower wavenumber (1234 cm 21 ) that corresponds to b-sheet conformation. [41][42][43] From this finding, it is apparent that plasma grafting of PP onto AASF Ar leads to random coil !…”

“…[41][42][43] However, in the Raman spectrum of PP-AASF, the intensity of the peak is observed to be increased and the peak further shifts toward lower wavenumber (1234 cm 21 ) that corresponds to b-sheet conformation. [41][42][43] From this finding, it is apparent that plasma grafting of PP onto AASF Ar leads to random coil ! b-sheet conformation transition that enhances semicrystalline nature of PP-AASF as compared to AASF and AASF Ar .…”