ノート
Radical Copolymerization of Ferulic Acid Derivatives with Ethylenic Monomers
2016 年 72 巻 3 号 p. 74-79
詳細
2016 年 72 巻 3 号 p. 74-79
Bio‐based ferulic acid (FA), (E)‐3‐(4‐hydroxy‐3‐methoxyphenyl)prop‐2‐enoic acid was converted to 1,2‐disubstituted ethylenic monomer (FA1) via methyl esterification followed by silylation with tert‐butyldimethylsilyl chloride. Radical copolymerization of FA1 with styrene (St), methyl methacrylate (MMA), and 4‐acetoxy‐3‐methoxystyrene (FA2) prepared from FA were carried out using azobisisobutyronitrile as an initiator at 80℃. It is found that FA1 was copolymerized with St and FA2, but not with MMA. The formation of copolymers was confirmed by 1H‐ and 13C‐NMR analyses. The reactivity ratios of FA1 and St estimated by the Fineman‐Ross method are rFA1=0.12 and rSt=2.46. In the case of the copolymerization of FA1 with FA2, the reactivity ratios, rFA1=0.13 and rFA2=2.66 were determined.
