Synthesis of epoxy-terminated polymers by radical polymerization using α-(t-butylperoxymethyl)styrene as chain transfer agent

✍ Scribed by K. Shanmugananda Murthy; K. Kishore

• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 420 KB
• Volume: 34
• Category: Article
• ISSN: 0887-624X
• DOI: 10.1002/(sici)1099-0518(199606)34:8<1415::aid-pola4>3.0.co;2-z

✦ Synopsis

Epoxy-terminated polystyrene has been synthesized by radical polymerization using a-( tbutylperoxymethyl) styrene (TPMS) as the chain transfer agent. The chain transfer constants were found to be 0.66 and 0.80 at 60 and 70°C, respectively. The presence of epoxy end groups was confirmed by functional group modification of epoxide to aldehyde by treatment with BF3.Et20. Thermal stability of TPMS was followed by differential scanning calorimetry and iodimetry. Thermal decomposition of TPMS in toluene follows first order kinetics with an activation energy of 23 kcal/mol. 0 1996 John Wiley & Sons, Inc.