Selective Degradation of End-of-Life Poly(lactide) via Alkali-Metal-Halide Catalysis

被引：38

作者：

Alberti, Christoph ^{[1
]}

Damps, Nicole ^{[1
]}

Meissner, Roderich R. R. ^{[1
]}

Hofmann, Melanie ^{[1
]}

Rijono, Desiree ^{[1
]}

Enthaler, Stephan ^{[1
]}

机构：

[1] Univ Hamburg, Inst Anorgan & Angew Chem, Martin Luther King Pl 6, D-20146 Hamburg, Germany

来源：

ADVANCED SUSTAINABLE SYSTEMS | 2020年 / 4卷 / 01期

关键词：

catalysis; degradation; green chemistry; polymers; recycling; LACTIC-ACID; DIMETHYL CARBONATE; POLYLACTIC ACID; IONIC LIQUIDS; PLASTIC WASTE; ALKYL LACTATE; DEPOLYMERIZATION; POLYCARBONATE; HYDROLYSIS; BIODEGRADATION;

D O I：

10.1002/adsu.201900081

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The recycling of poly(lactide) (PLA) is studied. Using methanol and alkali-metal-halides as catalyst, PLA is degraded to produce methyl lactate, which is a suitable chemical for the regeneration of PLA. An excellent degree of degradation (conversions: >99%, yields: >99%) is achieved in less than 20 min utilizing microwave heating. Remarkably, PLA goods are successfully converted into methyl lactate.

引用

页数：9

共 83 条

[1]

Aguado J., 1999, FEEDSTOCK RECYCLING

[2] Depolymerization of End-of-Life Poly(bisphenol A carbonate) via Alkali-Metal-Halide-Catalyzed Methanolysis [J].