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of the glass transition temperature, T g , and the determination of morphology by electron microscopy. By means T g it is possible to distinguish between immiscible or partial miscible systems, and miscible systems. In the first case, the
at 100 °C. Techniques A differential scanning calorimeter (DSC-7, Perkin Elmer) was used to measure the glass transition temperatures and the heats of reaction. Unreacted samples of about 5 mg were subjected to two
glass transition temperature, T g , in fragile ChG leading to their significant radiation-induced physical aging comparable with ∼tens of years storage at the ambient conditions [ 13 – 15 ]. This effect has been comprehensively studied in Se
resistance of the polymer to an influence of low temperatures. From the analysis of DSC data of the synthesized PMVBSs, it results that their glass transition temperatures ( T g ) are different ( Table 5 ), but they are distinctly lower than those for
temperature were measured by Archimedes method by dual weighting in air and in distilled water. Thermal expansion and glass transition temperature were measured by thermodilatometry. Refractive index was measured on polished prismatic glass samples by Abbe
seen that the glass transition temperature of uncured DGEBA/BABB system is lower than DGEBA/DABP system. This is probably due to the incorporation of methylene unit for DGEBA/BABB system, which leads greater degree of freedom for the segmental motion in
selecting a composite material for design engineering and manufacture of products. The HDT can be basically correlated with the glass-transition temperature of the matrix polymer. The effect of the type and quantity of the reinforcing material on
strong compacts [ 15 ]. Moreover the analysis of effect of water on bulk polymer properties is fundamental for many activities related to coating technology [ 16 ], like the prediction of glass transition temperature, T g [ 17 ]. The correlation between
scanning calorimetry The structural and enthalpy relaxation at the glass transition temperature ( T g ) is given by Moynihan et al. [ 16 ]: (1) where q is the heating rate, R the gas constant and E s the activation energy for structural
160–170 °C, and a glass transition temperature between 55 and 60 °C. Modification of cellulose Both celluloses (MCC and CLF) were soaked in NaOH for intra-crystalline swelling and then oxidized using hydrogen
