Structural modification of expandable polystyrene. III. Copolymerization with siloxane‐based macroinitiator

Abstract

Conventional expandable polystyrene (EPS) was chemically modified by preparing copolymers containing 0.1%, 0.2%, and 0.5% siloxane-based macroinitiator. This was used to enhance the surface and thermal properties of EPS particles. Copolymeric expandable polystyrene samples were characterized with various techniques including 1 H-NMR, gel permeation chromatography, differential scanning calorimetry, scanning electron microscopy, and contact angle measurement.

Well-Architectured Poly(dimethylsiloxane)-Containing Copolymers Obtained by Radical Chemistry

“…More recently, Taskiran carried out the synthesis of PS- b -PDMS- b -PS copolymers to modify the properties of expandable PS. PDMS-filled expandable PS was synthesized using siloxane-containing peroxycarbamate macroinitiator 1 (Table ) by suspension polymerization.…”

“…Finally, according to Taskiran et al, , microscopy can give indications on the surface properties. Indeed, comparison between expandable poly(styrene) (EPS) and EPS modified by silicone acrylate showed a rough surface for the first one whereas the modified EPS appeared smooth and glossy.…”

Synthesis and properties of starch‐grafted polystyrene‐maleic anhydride copolymer

“…The higher T g of the matrix, the less residue of the blowing agent. Therefore, a lot of work4–6 has been done for raising the T g of EPS through copolymerization with different monomers, such as α‐Methylstyrene.…”