硫化
生物降解
聚酯纤维
解聚
单体
天然橡胶
材料科学
溶剂分解
弹性体
聚合物
有机化学
高分子科学
化学
高分子化学
复合材料
水解
作者
Simon T. Schwab,Taylor F. Nelson,Stefan Mecking
标识
DOI:10.1021/acssuschemeng.3c08435
摘要
The cross-linked nature of vulcanized rubbers as used in tire and many other applications prohibits an effective closed-loop mechanical or chemical recycling. Moreover, vulcanization significantly retards the material's biodegradation. Here, we report a recyclable and biodegradable rubber that is generated by the vulcanization of amorphous, unsaturated polyesters. The elastic material can be broken down via solvolysis into the underlying monomers. After removal of the vulcanized repeat units, the saturated monomers, constituting the major share of the material, can be recovered in overall recycling rates exceeding 90%. Respirometric biodegradation experiments by 13CO2 tracking under environmental conditions via the polyesters' diol monomer indicated depolymerization and partial mineralization of the vulcanized polyester rubbers.
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