| Author(s) | Collection number | Pages | Download abstract | Download full text |
|---|---|---|---|---|
| Shybanov V. V. | № 1 (71) | 91-97 |
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The results of study of the effect of plasticizers of different nature on physic-mechanical and optical properties of films made from thermoelastics, namely styrene butadiene and styrene isoprene elastomers have been shown. We have studied individual styrene-diene block copolymers and their mixtures with different components (monomers, photoinitiators, dyes, inhibitors), which are part of photopolimeryzation materials. It was established that all researched plasticizers soften both styrene-diene thermoelastics and photopolimeryzation compositions based on them. Among the studied plasticizers dinonyl phthalate was the most effective. It combines well with the polymer matrix, as evidenced by the low optical density of films from these materials. The second group of studied plasticizers were monomers and oligomers reactionable in the photopolymerization processes. By the magnitude of the elastic and plastic de-formation it was found the following row of decreasing plasticizer-monomers plastic action: Ethylene glycol dimethylacrylate (EGDMA) > triethylene glycol dimethacrylate (TREGDMA) >> acrylic acid (AA) = bis-(triethylene glycol) phthalate dimethacrylate (MTF 9) > bis-(diethylene glycol) phthalate dimethacrylate (MDF 2). Monomers ethylene glycol methylacrylate (EGMA) and oligocarbonate-methacrylate (ОCМ 2) revealed antiplasticizing effect, that is evident from the decreasing of plastic deformation and increasing of optical density. A similar behavior was observed in the case of styrene iso-prene thermoelastomers and their compositions.
Keywords: plastification, styrene-diene block copolymers, elastic and plastic deformation, oligoester (meth)acrylate, photopolymerization.
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