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1045

Ionic liquids as Efficient Catalysts for The Glycolysis of Polyethylene Terephthalate

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Last updated: 22 Jan 2023

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Abstract

THE GLYCOLYSIS of polyethylene terephthalate (PET) was …… studied using several ionic liquids as catalysts. The Lewis base ionic liquid, 1-butyl-3-methylimidazolium acetate [Bmim][OAc], exhibits higher catalytic activity for the glycolysis of PET, compared with 1-butyl-3 methylimidazolium chloride ([Bmim]Cl) and 1-butyl-3-methylimidazolium bromide ([Bmim]Br). The results revealed that the [Bmim][OAc] has a PET conversion of 75.1% and bis (2-hydroxyethyl) terephthalate (BHET) yield of 46.4% under the conditions of 1.0 g of [Bmim] [OAc] with 20 g of ethylene glycol in the presence of 2.0 g of PET at 180ºC after 2 hr of glycolysis. The main glycolysis product (BHET) was analyzed using XRD, NMR, EI-MS, FTIR, TGA and DSC.

DOI

10.21608/ejchem.2014.1045

Keywords

Catalysis, Ionic liquid, Glycolysis, Polyethylene terephthalate and Recycling

Volume

57

Article Issue

4

Related Issue

250

Issue Date

2014-08-01

Receive Date

2014-08-26

Publish Date

2014-08-31

Page Start

267

Page End

280

Print ISSN

0449-2285

Online ISSN

2357-0245

Link

https://ejchem.journals.ekb.eg/article_1045.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=1045

Order

2

Type Code

292

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

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Article

Created At

22 Jan 2023