WebProperties of the pure substances for employing the Couchman-Karasz equation (Eq. (3.6), (3.7)) for physical mixtures are listed in Table 3.1. In most cases, the exper- imental Tg differed from the CK-equation, indicating specific interactions between the API and the polymer which cannot be explained by simple combinatorial mixing (Fig. 3.3a-d ... WebSep 1, 2000 · The Couchman–Karasz equation was, for instance, used to predict the T g of malto-oligomer/water mixtures (Orford, Parker, Ring & Smith, 1989). The Gordon–Taylor equation was particularly applied for fitting experimental T g values of different low-molecular weight sugars and food biopolymers (Roos and Karel, 1991a, Roos, 1995, …
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WebComparison of the Gordon-Taylor and Couchman-Karasz equations for prediction of the glass transition temperature of glass solutions of drug and polyvinylpyrrolidone … WebJun 7, 2024 · The mixtures' T g is systematically underestimated by means of the Couchman-Karasz model. A systematic, sigmoidal deviation behavior from the Gordon … does gatorade make g2 anymore
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WebApr 13, 2024 · When this equation is combined with R 0, we obtain the relative energy difference for the system: ... and the T g that can be calculated either by the Fox or the Gordon-Taylor equation or one of the Couchman-equations depending on the composition ... Couchman PR, Karasz FE. A classical thermodynamic discussion of the effect of … WebApr 13, 2024 · The experimental T g values were compared with the theoretical values calculated by the Gordon-Taylor and the Couchman-Karasz equations (equations … WebS5 Figure S5. (a) DSC scan and T g value of HMMM after thermal treatment at 200 °C for 30 min in a ventilated oven; (b) dependence of T g on lignin mass fraction as obtained from the Couchman- Karasz equation (k CK = 0.46) and from experimental DSC measurements. To correlate the T g of the crosslinked SAL/HMMM system to its … does gatlinburg tn have an airport