Introduction of hydroxymethyl groups into polystyrene and styrene
✍ Scribed by C.H Bamford; H Lindsay
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 326 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0032-3861
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The surface of polystyrene was modified by the introduction of CN groups. This was achieved by irradiating the polymer with UV light (254 nm) in the presence of gaseous cyanogen bromide (BrCN). X-ray photoelectron spectroscopy (XPS) and FTIR analysis showed that after irradiation both Br and CN grou
## Abstract The surface morphology of thermooxidative degraded polystyrene–isoprene–styrene (SIS) and polystyrene–butadiene–styrene (SBS) thermoplastic block copolymers was studied by scanning electron microscopy. Surface changes caused by heating the samples in a pyrolyzer for 15 and 30 min were p