title: Ultrasonic degradation of butadiene, styrene and their copolymers.
abstract: Ultrasonic degradation of commercially important polymers, styrene-butadiene (SBR) rubber, acrylonitrile-butadiene (NBR) rubber, styrene-acrylonitrile (SAN), polybutadiene rubber and polystyrene were investigated. The molecular weight distributions were measured using gel permeation chromatography (GPC). A model based on continuous distribution kinetics approach was used to study the time evolution of molecular weight distribution for these polymers during degradation. The effect of solvent properties and ultrasound intensity on the degradation of SBR rubber was investigated using different pure solvents and mixed solvents of varying volatility and different ultrasonic intensities.
authors: Department of Chemical Engineering, Indian Institute of Science, Bangalore 560 012, India.
authors: P S
authors: PS
authors: Sathiskumar
authors: Giridhar
authors: G
authors: Madras
mesh_terms: D002070:Butadienes / Q000737:chemistry* / Q000302:isolation & purification / Q000528:radiation effects*; D004785:Environmental Pollutants / Q000737:chemistry* / Q000302:isolation & purification / Q000528:radiation effects*; D019220:High-Energy Shock Waves; D007220:Industrial Waste / Q000517:prevention & control; D011108:Polymers / Q000737:chemistry / Q000302:isolation & purification / Q000528:radiation effects; D011829:Radiation Dosage; D012037:Refuse Disposal / Q000379:methods; D013010:Sonication / Q000379:methods*; D020058:Styrene / Q000737:chemistry* / Q000302:isolation & purification / Q000528:radiation effects*
chemical_list: D002070:Butadienes; D004785:Environmental Pollutants; D007220:Industrial Waste; D011108:Polymers; D020058:Styrene