1988 Volume 7 Issue 1 Pages 111-116
The compositions of four proprietary tissue conditioners were investigated by infrared spectrophotometry.The effect of polymers and plasticizers on the dynamic viscoelastic properties of tissue conditioners were examined using two proprietary polymer powders(polymethacrylate and vinyl chloride-vinyl acetate copolymer)and four plasticizers.The proprietary liquid was a mixture of a phthalic ester plasticizers(such as butyl phthalyl butyl glycolate, dibutyl phthalate, benzyl butyl phthalate)with up to 20% ethyl alcohol.The phthalic ester plasticizers used in common proprietary liquids did not appreciably affected the storage modulus G′ and dynamic viscosity η′ of tissue conditioners.The factor influencing the dynamic viscoelastic properties of materials was the structure of the polymer powder.
