Hydrogen-transfer polymerization of vinyl monomers derived from 4-methylbenzoyl isocyanate and acrylamide derivatives

✍ Scribed by Takeru Iwamura; Ikuyoshi Tomita; Masato Suzuki; Takeshi Endo

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 194 KB
• Volume: 37
• Category: Article
• ISSN: 0887-624X
• DOI: 10.1002/(sici)1099-0518(19990215)37:4<465::aid-pola10>3.0.co;2-3

✦ Synopsis

The anionic polymerization of N-acryloyl-NЈ-(4-methylbenzoyl)urea (1) was carried out at 80°C for 24 h in DMF, DMSO, acetonitrile, or toluene by t-BuOK or DBU (3 mol %) as an initiator to obtain polymer 3 in a good yield. The structure of 3 was dependent upon the initiator used, in which t-BuOK selectively conducted the hydrogen-transfer polymerization, while DBU partially induced the vinyl polymerization (16 -20%). Likewise, N-acryloyl-N-methyl-NЈ-(4-methylbenzoyl)urea (2, i.e., an N-methylated derivative of 1) was subjected to the hydrogen-transfer polymerization. Although the yield of the polymer was lower in comparison with 1, the structure of the obtained polymer 4 was similarly governed by the initiator.