期刊
JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY
卷 50, 期 11, 页码 1149-1156出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/10601325.2013.830004
关键词
PET bottle waste; recycling; diethanolamine; N-1; N-1; N-4; N-4-tetrakis (2-hydroxyethyl) terephthalamide (THETA); terephthalic acid (TPA)
资金
- Council of Scientific and Industrial Research (CSIR), New Delhi, India
Chemical depolymerization of poly(ethylene terephthalate) (PET) waste is a possible remedy to huge amount of solid waste generation as it results in degradation products that possess a potential of recyclability. PET bottle waste was depolymerized by aminolysis using diethanolamine. Novel synthesis of N-1, N-1,N-4,N-4-tetrakis (2-hydroxyethyl) terephthalamide (THETA) with 73-76% yield and terephthalic acid (TPA) with 78-82% yield was achieved. The purified products were analyzed by FTIR, melting point, DSC, DTG and H-1-NMR. THETA has various applications in the synthesis of rigid polyurethane foam, unsaturated polyester resins and also as a cross linking agent/ hardener for epoxy resins.
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