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J. Pigłowski

Products of acrylic esters grafting on poly(vinyl chloride) as impact strength modifiers

Polimery 1993, No 11, 519

DOI: dx.doi.org/10.14314/polimery.1993.519


The phase behaviour of poly(vinyl chloride) blends containing graft acrylic copolymers was studied. Crosslinking of elastomeric phase in copolymer causes phase separation. From a study of sorption of acetone vapour by PVC, PVC-graft-(MMA-co-BA) and their mixtures, the Gibbs free energy of mixing of the two investigated polymers was calculated. The values of ΔGM indicate a strong thermodynamic affinity of the mixture components. The sorption experiments show a good agreement with density determinations. The PVC/PVC-graft-(MMA-co-BA)-75 exihibits better impact strength than PVC.

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