Corrigendum to “Elevated temperature nanoindentation characterization of poly(para-phenylene vinylene) conjugated polymer films” [Polym. Test. 41 (2015) 17–25]

Patel, Nimitt G.; Sreeram, Arvind; Venkatanarayanan, Ramaswamy I.; Krishnan, Sitaraman; Yuya, Philip A.

doi:10.1016/j.polymertesting.2015.01.001

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“…The data for PPV showed a second order transition at 143 °C, which is evidently associated with the glass transition. The T g of 143 °C predicted by MD simulations is consistent with our elevated temperature nanoindentation measurements that indicated that the T g for PPV was higher than 100 °C . It is also in agreement with the observation of Chatterjee et al that the T g of PPV derivatives were in the range of 60–150 °C.…”

Section: Resultssupporting

confidence: 92%

“…We recently reported nanoindentation studies on PPV films synthesized using a modified Wessling method . Poly( p ‐phenylene tetrahydrothiophenium ethylene chloride) (PPTHTEC) precursor films were converted to PPV films at different T conv temperatures, and the conversion‐temperature dependent reduced, storage, and loss moduli were measured at room temperature.…”

Section: Resultsmentioning

confidence: 99%

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Simulated Dilatometry and Static Deformation Prediction of Glass Transition and Mechanical Properties of Polyacetylene and Poly(para‐phenylene vinylene)

Venkatanarayanan

Krishnan

Sreeram

et al. 2016

Macro Theory & Simulations

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Thermophysical and mechanical properties of two conjugated polymers, poly(p‐phenylene vinylene) (PPV) and polyacetylene (PA), are predicted using molecular dynamics simulations and compared with results obtained from differential scanning calorimetry, nanoindentation, and dynamic mechanical analysis experiments. Glass transition temperature (Tg) is calculated from the changes in the slopes of the specific volume versus temperature and cohesive energy density versus temperature plots, obtained from constant pressure and constant temperature simulations (NPT ensemble). The effects of temperature on the torsion angle distributions and characteristic ratio are analyzed. PPV is found to have a Tg of 416 ± 8 K. PA does not exhibit a glass transition in the temperature range of 120 to 500 K. Using the static deformation method, the values of Young's modulus are calculated to be 1.81 ± 0.34 GPa for PA and 9.20 ± 0.57 GPa for PPV at 298 K. These values are in good agreement with the experimental measurements, validating the suitability of these techniques in the prediction of the polymer properties.

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Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 99%