Abstract
Polymeric films are prepared under UV radiation of urethane acrylate combined with functional monomers used as reactive diluents. Amount of photoinitiator and radiation does intensity were optimized UV-cured films were characterized by film hardness, gel content and tensile properties; these properties are correlated with glass transition temperatures (Tg) of the polymer films. The Tg of the film was calculated by using the Fox equation. Effect of comonomer diluents on these properties also was investigated in light of the changed Tg values of the polymeric films prepared in the presence of co-diluent. Polymers have diversified in applications in different fields and, as such, different types of polymers are being continuously developed to meet the universal demand of applications. As a result, various formulations are developed incorporating requisite reactive diluents to influence the film properties. Additives of different natures are important to monitor the characteristic properties of the film. This chapter is designed to correlate the rheological properties of the copolymers formed in the presence of different reactive diluents and codiluents with the glass transition temperatures of these films, calculated on the basics of Fox equation.
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