Table 2 Properties of butenolide polymers.

Polymer properties of alkoxybutenolide-based polymers BP2, BP3, HP2, HP3, IP2, IP3, MP2, and MP3 and butyl acrylate polymers homopolymer BAP1 and copolymer with VeoVa-10 BAP2 for comparison; molecular weights, length, and glass transition temperature (Tg).

Polymer*Monomer 1Monomer 2Mn (g/mol)Mw (g/mol)DnTg (°C)
BP2Embedded ImageEmbedded Image11652,7892.398.9312
BP3Embedded ImageEmbedded Image16114,8823.0314.69−62
HP2Embedded ImageEmbedded Image12423,2642.638.54−27
HP3Embedded ImageEmbedded Image15484,5872.9611.57−72
IP2Embedded ImageEmbedded Image15723,1742.029.3212
IP3Embedded ImageEmbedded Image17644,2952.4312.12−67
MP2Embedded ImageEmbedded Image11513,1012.697.1124
MP3Embedded ImageEmbedded Image15844,7112.9710.4616
BAP1Embedded Image/402215,8603.94123.72−39
BAP2Embedded ImageEmbedded Image280610,7663.8433.00−50

*Reaction conditions: 1:1 ratio of monomers, Trigonox 42S (6 mol %), 2.15 M in 1-methoxy-2-propanol, reflux, 10 min to 4 hours.

†Polydispersity (D) is calculated by dividing Mw by Mn.

‡Average amount of units in the polymer chain (n) is calculated through dividing number average molecular weight (Mn) by average mass of unit (mass monomer 1 + mass monomer 2).