A naturally abundant terpene, limonene (A), was radically polymerized with a maleimide derivative (B) and methacrylate (C) in a fluorinated alcohol to give terpolymers with unprecedented BAB-random-C sequences in which the BAB monomer sequence was randomly copolymerized with a C unit. In each binary system, limonene was hardly copolymerized with methacrylate while it was efficiently copolymerized with maleimide to result in a 1:2-alternating BAB periodic sequence, in part due to the penultimate effects and hydrogen-bonding interactions with fluoroalcohol. Methacrylate and maleimide were randomly copolymerized to give copolymers rich in methacrylate units with minimal amounts of maleimide-maleimide sequences. Their terpolymerization resulted in a BAB-r-C sequence as a consequence of the selective BAB polymerization between limonene and maleimide, the random copolymerization between methacrylate and maleimide, and the lack of copolymerization between limonene and methacrylate.

An aturally abundant terpene,l imonene (A), was radically polymerized with am aleimide derivative (B) and methacrylate (C) in af luorinated alcohol to give terpolymers with unprecedented BAB-random-C sequences in whicht he BABm onomer sequence was randomly copolymerized with aC unit. In eachb inary system, limonene was hardly copolymerized with methacrylate while it was efficiently copolymerized with maleimide to result in a1 :2-alternating BABp eriodic sequence,i np art due to the penultimate effects and hydrogen-bonding interactions with fluoroalcohol. Methacrylate and maleimide were randomly copolymerized to give copolymers rich in methacrylate units with minimal amounts of maleimide-maleimide sequences.T heir terpolymerization resulted in aB AB-r-C sequence as ac onsequence of the selective BABp olymerization between limonene and maleimide,the random copolymerization between methacrylate and maleimide,a nd the lacko fc opolymerization between limonene and methacrylate.

Eines der häufigsten Terpene in der Natur, Limonen (A), kann in einem fluorierten Alkohol radikalisch mit Maleimid (B) und Methacrylat (C) zu Terpolymeren mit nie dagewesenen BAB‐random‐C‐Sequenzen copolymerisiert werden. In der Zuschrift auf S. 1815 ff. zeigen K. Satoh, M. Kamigaito und M. Ojika, dass die Sequenz das Ergebnis einer selektiven BAB‐Polymerisation von Limonen und Maleimid, einer fast ausschließlichen Homopolymerisation von Methacrylat während der Limonen‐Methacrylat‐Copolymerisation und einer Zufalls‐Copolymerisation von Methacrylat und Maleimid ist.

One of the most naturally abundant terpenes, limonene (A), can be radically copolymerized with maleimide (B) and methacrylate (C) in a fluorinated alcohol to result in a terpolymer with unprecedented BAB‐random‐C sequences. In their Communication on page 1789 ff., K. Satoh, M. Kamigaito, and M. Ojika show that the sequence is a consequence of selective BAB polymerization between limonene and maleimide, almost exclusive homopolymerization of methacrylate during copolymerization of limonene and methacrylate, and random copolymerization between methacrylate and maleimide.