Polybutadiene content and microstructure in high impact polystyrene

✍ Scribed by J. Lacoste; F. Delor; J. F. Pilichowski; R. P. Singh; A. Vishwa Prasad; S. Sivaram

• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 499 KB
• Volume: 59
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(19960207)59:6<953::aid-app7>3.0.co;2-o

✦ Synopsis

The polybutadiene (PB) content and its microstructure in different grades of high impact polystyrene (HIPS) has been studied by various spectroscopic techniques. P B is characterized by deformation bands in FTIR spectroscopy at 994, 967, 912, and 729 cm-'. FT-Raman was used for higher constant resolution over the range of wave numbers. It provides reasonable signal to noise ratios in near IR excited Raman. Proton and 13C-NMR spectroscopy was utilized for the determination of polybutadiene content in HIPS and tacticity, and reactivity ratios.