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Efficient Conversion of Polyamides to ω‐Hydroxyalkanoic Acids: A New Method for Chemical Recycling of Waste Plastics
Author(s) -
Kamimura Akio,
Ikeda Kosuke,
Suzuki Shuzo,
Kato Kazunari,
Akinari Yugo,
Sugimoto Tsunemi,
Kashiwagi Kohichi,
Kaiso Kouji,
Matsumoto Hiroshi,
Yoshimoto Makoto
Publication year - 2014
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201402125
Subject(s) - polyamide , chemistry , organic chemistry , alkene , yield (engineering) , acetic acid , supercritical fluid , selectivity , alcohol , glycolic acid , materials science , catalysis , lactic acid , biology , bacteria , metallurgy , genetics
An efficient transformation of polyamides to ω‐hydroxy alkanoic acids was achieved. Treatment of nylon‐12 with supercritical MeOH in the presence of glycolic acid gave methyl ω‐hydroxydodecanoate in 85 % yield and the alcohol/alkene selectivity in the product was enhanced to up to 9.5:1. The use of 18 O‐enriched acetic acid for the reaction successfully introduced an 18 O 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.