Efficient Conversion of Polyamides to ω-Hydroxyalkanoic Acids: A New Method for Chemical Recycling of Waste Plastics

被引：42

作者：

Kamimura, Akio ^{[1
]}

Ikeda, Kosuke ^{[1
]}

Suzuki, Shuzo ^{[1
]}

Kato, Kazunari ^{[1
]}

Akinari, Yugo ^{[1
]}

Sugimoto, Tsunemi ^{[2
]}

Kashiwagi, Kohichi ^{[2
]}

Kaiso, Kouji ^{[1
,2
]}

Matsumoto, Hiroshi ^{[1
,2
]}

Yoshimoto, Makoto ^{[1
]}

机构：

[1] Yamaguchi Univ, Grad Sch Med, Dept Appl Mol Biosci, Ube, Yamaguchi 7558611, Japan

[2] Ube Ind, Ube Lab, Ube, Yamaguchi 7558633, Japan

来源：

CHEMSUSCHEM | 2014年 / 7卷 / 09期

关键词：

chemical recycling; nucleophilic substitution; polyamides; supercritical fluids; value-adding depolymerization; THERMAL-DEGRADATION; SUPERCRITICAL WATER; IONIC LIQUIDS; HYDROTHERMAL DEPOLYMERIZATION; CATALYTIC DEPOLYMERIZATION; ALIPHATIC POLYAMIDES; EPSILON-CAPROLACTAM; N-METHYLATION; GEL FORMATION; NYLON-6;

D O I：

10.1002/cssc.201402125

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An efficient transformation of polyamides to omega-hydroxy alkanoic acids was achieved. Treatment of nylon-12 with supercritical MeOH in the presence of glycolic acid gave methyl omega-hydroxydodecanoate in 85% yield and the alcohol/alkene selectivity in the product was enhanced to up to 9.5:1. The use of O-18-enriched acetic acid for the reaction successfully introduced an O-18 atom at the alcoholic OH group in the product. This strategy may provide a new and economical solution for the chemical recycling of waste plastics.

引用

页码：2473 / 2477

页数：5

共 64 条

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