The Depolymerization of Poly(ethylene terephthalate) (PET) Using N-Heterocyclic Carbenes from Ionic Liquids

2010 ◽  
Vol 87 (5) ◽  
pp. 519-521 ◽  
Author(s):  
Nahrain E. Kamber ◽  
Yasuhito Tsujii ◽  
Kate Keets ◽  
Robert M. Waymouth ◽  
Russell C. Pratt ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Ethylene Terephthalate ◽  
Heterocyclic Carbenes ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

Mechanistic Insight toward the Roles of Anions and Cations in the Degradation of Poly (ethylene terephthalate) Catalyzed by Ionic Liquids

2021 ◽  
Author(s):  
Zhaoyang Ju ◽  
Lei Zhou ◽  
Xingmei Lu ◽  
Yao Li ◽  
Xiaoqian Yao ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Ionic Liquids ◽  
Ethylene Terephthalate ◽  
High Catalytic Activity ◽  
Mechanistic Insight ◽  
Poly Ethylene Terephthalate ◽  
Anions And Cations ◽  
Poly Ethylene

Ionic liquids (ILs) have shown high catalytic activity in the degradation of poly (ethylene terephthalate) (PET), but the effects of anions and cations as well as the mechanism remain ambiguous....

scholarly journals Theoretical studies on glycolysis of poly(ethylene terephthalate) in ionic liquids

RSC Advances ◽  
2018 ◽  
Vol 8 (15) ◽  
pp. 8209-8219 ◽  
Author(s):  
Zhaoyang Ju ◽  
Weihua Xiao ◽  
Xingmei Lu ◽  
Xiaomin Liu ◽  
Xiaoqian Yao ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Ethylene Terephthalate ◽  
Theoretical Studies ◽  
Π Stacking ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

Co-interaction lead to glycolysis of ethylene terephthalate (PET) in ionic liquids (ILs): H-bonds and π-stacking.

Cu- and Zn-acetate-containing ionic liquids as catalysts for the glycolysis of poly(ethylene terephthalate)

2014 ◽  
Vol 110 ◽  
pp. 364-377 ◽  
Author(s):  
A.M. Al-Sabagh ◽  
F.Z. Yehia ◽  
A.M.F. Eissa ◽  
M.E. Moustafa ◽  
Gh. Eshaq ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Ethylene Terephthalate ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Cu And Zn

Degradation of poly(ethylene terephthalate) catalyzed by metal-free choline-based ionic liquids

2020 ◽  
Vol 22 (10) ◽  
pp. 3122-3131 ◽  
Author(s):  
Yachan Liu ◽  
Xiaoqian Yao ◽  
Haoyu Yao ◽  
Qing Zhou ◽  
Jiayu Xin ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Ethylene Terephthalate ◽  
Metal Free ◽  
Poly Ethylene Terephthalate ◽  
Free Choline ◽  
Poly Ethylene

Glycolysis of PET is a prospective way for degradation of PET to its monomer bis(hydroxyethyl)terephthalate (BHET) which can be polymerized again to form new qualified PET materials, and hence provides possibilities for a permanent loop recycling.

Synthesis of poly(ethylene terephthalate) in benzyl imidazolium ionic liquids

2012 ◽  
Vol 61 (9) ◽  
pp. 1470-1476 ◽  
Author(s):  
Junyan Dou ◽  
Zhengping Liu ◽  
Khalid Mahmood ◽  
Yuntao Zhao
Keyword(s):  
Ionic Liquids ◽  
Ethylene Terephthalate ◽  
Imidazolium Ionic Liquids ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

Glycolysis of poly(ethylene terephthalate) catalyzed by ionic liquids

2009 ◽  
Vol 45 (5) ◽  
pp. 1535-1544 ◽  
Author(s):  
Hui Wang ◽  
Yanqing Liu ◽  
Zengxi Li ◽  
Xiangping Zhang ◽  
Suojiang Zhang ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Ethylene Terephthalate ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

scholarly journals Metal-Containing Ionic Liquids: Highly Effective Catalysts for Degradation of Poly(Ethylene Terephthalate)

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Qun Feng Yue ◽  
Hua Guang Yang ◽  
Mi Lin Zhang ◽  
Xue Feng Bai
Keyword(s):  
Ionic Liquids ◽  
Ethylene Glycol ◽  
Qualitative Analysis ◽  
Reaction Temperature ◽  
Ethylene Terephthalate ◽  
Main Product ◽  
Local Market ◽  
Pet Waste ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

Poly(ethylene terephthalate) (PET) waste from local market was depolymerized by ethylene glycol (EG) in the presence of metal-containing ionic liquids, and the qualitative analysis showed that the bis(hydroxyethyl) terephthalate (BHET) was the main product in this process. Compared with other metal-containing ionic liquids, [Bmim]ZnCl3was considered the best catalyst in the glycolysis of PET. When the reaction temperature was 180°C, the conversion of PET reached 97.9% and the BHET was yielded to 83.3% within 5 h. At the same time, [Bmim]ZnCl3could be reused for six times without obvious decrease in the yield of BHET. Additional, the effects of waste PET’s source and size were investigated.

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