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On the Compatibility of Polysaccharide/Maleic Copolymers Blends. IV. Thermal Behavior of Hydroxypropyl Cellulose Containing Blends

Domenii publicaţii > Chimie + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: G. G. Bumbu, C. Vasile, M.- C. Popescu, H. Darie, G. C. Chiţanu, Gh. Singurel, A. Carpov

Editorial: J. Appl. Polym. Sci., 88, p.2585-2597, 2003.

Rezumat:

The compatibility of the hydroxypropyl cellulose
(HPC) with maleic acid–vinyl acetate copolymer in the solid state was studied by thermogravimetry, thermooptical analysis, differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR), and optical microscopy. It was established that physical interactions are prevalent in blends with a high content of HPC, whereas chemical interactions predominate in blends with a medium and low content of HPC. By increasing the temperature, the thermochemical reactions are favored. Thermal properties are dependent on the mixing ratio of the components.

Cuvinte cheie: blends; compatibility; thermal properties; morphology