Relaxational study of poly(vinylpyrrolidone-co-butyl acrylate) membrane by dielectric and dynamic mechanical spectroscopy

Pickering Emulsion Polymerization of Styrene-co-butyl Acrylate Nanoparticles by Using Cloisite Na+ as Surfactant

Cloisite Na+was used as a solid surfactant (stabilizer) in Pickering emulsion polymerization of styrene-co-butyl acrylate in presence of oil soluble initiator, azobisisobutyronitrile (AIBN) and water soluble initiator, potassium persulfate (KPS). Fourier transform infrared (FTIR) spectrum approved the corporation of Cloisite Na+ layers within the polymer matrix. Effect of clay content was a...

Calorimetric study of block-copolymers of poly(n-butyl acrylate) and gradient poly(n-butyl acrylate-co-methyl methacrylate)

The nanophase separation in diblock and triblock copolymers consisting of immiscible poly(n butyl acrylate) (block A) and gradient copolymers of methyl methacrylate (MMA) and n butyl acrylate (n BA) (block M/A) were investigated by means of their heat capacity, Cp, as a function of the composition of the blocks M/A and temperature. In all copolymers studied, both blocks are represented by their...

n-Butyl acrylate.

1.1.3 Chemical and physical properties of the pure substance From American Conference of Governmental Industrial Hygienists (1991) unless otherwise noted. (a) Description: Colourless, flammable liquid (b) Boiling-point: 145°C (Lide, 1997) (c) Melting-point: –64.6°C (Lide, 1997) (d) Solubility: Very slightly soluble in water (0.14% at 20°C); soluble in ethanol, diethyl ether and acetone (e) Vapo...

pickering emulsion polymerization of styrene-co-butyl acrylate nanoparticles by using cloisite na+ as surfactant

Thermomechanical, Dynamic Mechanical and Dielectric Methods

The dimensional and mechanical stability of materials is of paramount importance to their use in the everyday world where they may encounter a wide variation in temperature through design or by accident. Many polymers are processed at elevated temperatures so as to enable them to flow and be more amenable to fabrication. Food items are cooked, pasteurised or otherwise heated or frozen. Ceramics...