Block copolymers include a poly β-methyl-δ-valerolactone (PMVL) block. The PMVL blocks can be formed from biosynthesized β-methyl-δ-valerolactone (MVL). The PMVL block may be formed from biosynthesized β-methyl-δ-valerolactone (MVL) with a 14C/12C ratio greater than zero. The block copolymers can include hard blocks. The block copolymers can be thermoplastic elastomers. The block copolymers may include a polylactic acid (PLA) block.
嵌段共聚物包括聚 β-甲基-
δ-戊内酯(PMVL)嵌段。PMVL 嵌段可由
生物合成的 β-甲基-
δ-戊内酯(MVL)形成。PMVL 嵌段可由 14C/12C 比率大于零的
生物合成的 β-甲基-
δ-戊内酯(MVL)形成。嵌段共聚物可包括硬块。嵌段共聚物可以是热塑性弹性体。嵌段共聚物可包括聚
乳酸(P
LA)嵌段。