Filler–polymer interactions in both silica and carbon black-filled styrene–butadiene rubber compounds

✍ Scribed by Sung-Seen Choi

• Publisher: John Wiley and Sons
• Year: 2001
• Tongue: English
• Weight: 132 KB
• Volume: 39
• Category: Article
• ISSN: 0887-6266
• DOI: 10.1002/1099-0488(20010215)39:4<439::aid-polb1016>3.0.co;2-3

✦ Synopsis

Bound rubber in a filled rubber compound is formed by physical adsorption and chemisorption between the rubber and the filler. Styrene-butadiene rubber (SBR) is composed of four components of styrene, cis-1,4-, trans-1,4-, and 1,2-units. Fillerpolymer interactions in both silica and carbon black-filled SBR compounds were studied by analyzing microstructures of the bound rubbers with pyrolysis-gas chromatography. Differences in the filler-polymer interactions of the styrene, cis-1,4-, trans-1,4-, and 1,2-units were investigated. The filler-polymer interactions of the butadiene units were found to be stronger than that of the styrene unit. The interactions of the cis-1,4-and trans-1,4-units were stronger with carbon black than with silica, whereas the 1,2-unit interacted more strongly with silica than with carbon black.