Study on Effect of the Polyethylene Terephthalate/Nanoclay Nanocomposite Film on the Migration of Terephthalic Acid into the Yoghurt Drinks Simulant

2015 ◽  
Vol 40 (1) ◽  
pp. e12324 ◽  
Author(s):  
N. Dardmeh ◽  
A. Khosrowshahi ◽  
H. Almasi ◽  
M. Zandi



2017 ◽  
Vol 19 (14) ◽  
pp. 3263-3271 ◽  
Author(s):  
Toni Pfennig ◽  
Robert L. Johnson ◽  
Brent H. Shanks

Diels–Alder cycloaddition of biomass-derived 2-pyrone coumalic acid (CMA) with propylene provides an alternative pathway to produce toluic acid (TA), a precursor to terephthalic acid (TPA) which is a key component in the manufacture of polyethylene terephthalate (PET).



1977 ◽  
Vol 9 (1) ◽  
pp. 30-33
Author(s):  
V. V. Shevchenko ◽  
L. P. Repina ◽  
�. M. Aizenshtein ◽  
T. A. Polyakova


2011 ◽  
Vol 233-235 ◽  
pp. 1628-1631 ◽  
Author(s):  
Qing Hua Tang ◽  
Yong Shuai Ma ◽  
Dong Zhang

The effects of different temperatures on catalytic hydrolysis of polyethylene terephthalate(PET) by zinc sulfate as a catalyst under microwave irradiation were studied, and in the meantime, the relation between the depolymerization rate of PET and the yield of terephthalic acid(TPA) under the same temperature was investigated. The results suggested that the reaction temperature was an important influencing factor for the depolymerization reaction of PET, and the concentration of depolymerization product TPA and the depolymerization rate of PET became coherence under the same temperature.



Author(s):  
Pietro Sartorelli ◽  
Gabriele d'Hauw ◽  
Donatella Spina ◽  
Luca Volterrani ◽  
Maria Antonietta Mazzei


1989 ◽  
Vol 72 (3) ◽  
pp. 468-470 ◽  
Author(s):  
Timothy H Begley ◽  
Henry C Hollifield

Abstract A precipitation procedure and liquid chromatography (LC) were used to measure the residual reactants and reaction by-products in polyethylene terephthalate (PET) polymers and food packages. The polymer is dissolved in l,l,l,3,3,3-hexafluoro-2-propanol/methyIene chloride and then precipitated with acetone. The filtered solution is evaporated almost to dryness, and the concentrate is diluted with dimethylacetamide for LC analysis. Recoveries for terephthalic acid (TA), bis(2-hydroxyethyl) terephthalate (BHET), and the PET cyclic trimer averaged 95,104, and 98%, respectively. The residual levels of TA, BHET, monohydroxy ethylene terephthalic acid, and the PET cyclic trimer were measured in commercial resins and food packages.



2021 ◽  
Vol 135 ◽  
pp. 267-274
Author(s):  
Weisheng Yang ◽  
Rui Liu ◽  
Chang Li ◽  
Yang Song ◽  
Chaoquan Hu


1977 ◽  
Vol 8 (5) ◽  
pp. 510-511
Author(s):  
T. L. Baranova ◽  
E. B. Kremer


1975 ◽  
Vol 7 (4) ◽  
pp. 211-219 ◽  
Author(s):  
A. B. Ijzermans ◽  
F. J. Pluijm ◽  
F. J. Huntjens ◽  
J. F. Repin


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