Work

Alkaline hydrolysis of poly(ethylene terephthalate) in presence of a phase transfer catalyst

Year: 2007

Type: article

Abstract: Poly(ethylene terephthalate) (PET) powder was hydrolyzed at atmospheric pressure in 5-10 wt% aqueous NaOH at 95°C for 100 min using some phase transfer catalysts (PTC) with an intention to recover the starting monomers from the waste PET. The intent behind attempting new PTC was to carry out the reaction at milder conditions than those reported in the literature. One of the monomers, terephthalic acid (TPA) was produced in the presence of a PTC during the alkaline hydrolysis of PET. The TPA yield agreed with the degree of hydrolysis of PET. Benzalkonium chloride (BKC) was found to be the most effective catalyst among the ones studied. Operating parameters such as NaOH concentration, catalyst concentration and reaction temperature were optimized.

Source: Indian Journal of Chemical Technology

Authors: J. Das, A.B. Halgeri, Vandana Devi Sahu, Parimal A. Parikh

Language: English

Topic: Polymer crystallization and properties

Subfield: Polymers and Plastics

Field: Materials Science

Domain: Physical Sciences

SDG: Responsible consumption and production

Open Access status: diamond

OpenAlex ID: W2467181754

FWCI: 1.032

Cites:

Cited by: 26

Related to: 10