Radical polymerization of N-phenylitaconimide

✍ Scribed by T. Sato; K. Morino; H. Tanaka; T. Ota

• Book ID: 103075579
• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 232 KB
• Volume: 25
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(89)90094-3

✦ Synopsis

A~tract--N-Phenylitaconimide (NPII), a cyclic analogue of N,N-disubstituted methacrylamide, is easily polymerized using radical initiators; the number-average molecular weights of the resulting polymers are in the range of 6000-18,000. The polymerization of NPII with dimethyl 2,2'-azobisisobutyrate (MAIB) was studied kinetically in THF at 50 ~. The polymerization rate (Rp) was given by the equation; R~ =k[MAIB] °52 [NPII] z~. The polymerization had a low overall activation energy of 51 kJ/mol. Thermogravimetry revealed that thermal degradation of poly(NPII) occurred at 320 ° and the residue at 500" was 40% of the initial polymer. Copolymerization of NPII(M 0 and styrene (M:) in THF at 50 ° gave monomer reactivity ratios of r t = 0.88 and r 2 = 0.06, leading to Q and e values of NPII of 4.0 and +0.90 respectively, indicating that NPII is a conjugative electron-accepting monomer.