Chemical Kinetic Model and Thermodynamic Compensation Effect of Alkaline Hydrolysis of Waste Poly(ethylene terephthalate) in Nonaqueous Ethylene Glycol Solution

2006 ◽  
Vol 45 (24) ◽  
pp. 7985-7996 ◽  
Author(s):  
Adhemar Ruvolo-Filho ◽  
Priscila S. Curti
Keyword(s):  
Kinetic Model ◽  
Ethylene Glycol ◽  
Ethylene Terephthalate ◽  
Compensation Effect ◽  
Chemical Kinetic ◽  
Chemical Kinetic Model ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Glycol Solution ◽  
Hydrolysis Of

Catalytic property of poly(ethylene terephthalate-co-isophthalate) synthesized with a novel Sb/Al bimetallic compound catalyst

RSC Advances ◽  
2016 ◽  
Vol 6 (72) ◽  
pp. 67677-67684 ◽  
Author(s):  
Fuchen Zhang ◽  
Hongjun Kang ◽  
Yongping Bai ◽  
Bo Jiang ◽  
Yudong Huang ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Catalytic Property ◽  
Ethylene Terephthalate ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Hydrolysis Of

Our study investigated the hydrolysis of aluminum subacetate, and poly(ethylene terephthalate-co-isophthalate) was synthesized by using a compound catalyst made of its hydrolysate, γ-AlOOH, with ethylene glycol stibium.

Ethylene Glycol and Glycerin as the Solvent for Alkaline Treatment of Poly(ethylene Terephthalate) Fabrics

1997 ◽  
Vol 67 (10) ◽  
pp. 760-766 ◽  
Author(s):  
M.-C. Yang ◽  
H.-Y. Tsai
Keyword(s):  
Ethylene Glycol ◽  
Degradation Rate ◽  
Ethylene Terephthalate ◽  
Treatment Time ◽  
Alkaline Treatment ◽  
Aqueous System ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Kinetics Of ◽  
Scanning Electron

Poly(ethylene terephthalate) fabrics are treated with sodium hydroxide using ethylene glycol or glycerin as the solvent. Compared with conventional aqueous alkaline hydrolysis, the degradation rate in ethylene glycol increases tenfold. The kinetics of the alkaline-ethylene glycol treatment show that the weight loss is linear with respect to time. The moisture regain rate and tensile properties of the treated fabrics are measured; other tests include scanning electron microscopy and dyeing properties. The results show that the properties of the treated fabrics do not depend significantly on the solvent; therefore, using ethylene glycol can greatly shorten the treatment time to achieve results similar to those with the conventional aqueous system.

Dynamic Step-Scan Two-Dimensional Fourier Transform Infrared Studies of Uniaxially Drawn Poly(Ethylene Terephthalate) Film

1996 ◽  
Vol 50 (3) ◽  
pp. 377-381 ◽  
Author(s):  
Masashi Sonoyama ◽  
Kunihiro Shoda ◽  
Gen Katagiri ◽  
Hideyuki Ishida
Keyword(s):  
Ethylene Glycol ◽  
Phenyl Ring ◽  
Ethylene Terephthalate ◽  
High Mobility ◽  
Two Dimensional ◽  
Poly Ethylene Terephthalate ◽  
Dynamic Spectra ◽  
Infrared Studies ◽  
Poly Ethylene ◽  
Mechanical Stretching

Dynamic infrared spectra of uniaxially drawn poly(ethylene terephthalate) (PET) under a sinusoidal strain were examined. A very intense dynamic band at 973 cm−1 assigned to the trans C-O stretching mode indicated stress-induced high mobility around the C-O bond in the ethylene glycol units. It was supposed that derivative-like skeletal bands observed in the dynamic spectra originated from the stress-induced frequency shift. Two-dimensional correlation analyses of the dynamic spectra were also carried out and revealed that the phenyl ring 18a band at 1018 cm−1 and the phenyl ring 19b band at 1410 cm−1 were composed of three and two independent components, respectively. The correlation peaks between the phenyl ring and CH2 vibrational modes showed that orientation of the methylene group in the ethylene glycol unit, induced by mechanical stretching, is faster than that of the phenyl ring in the terephthalate unit.

Depolymerization of Poly(ethylene terephthalate) to Terephthalic Acid and Ethylene Glycol in High-temperature Liquid Water

2009 ◽  
Vol 38 (3) ◽  
pp. 268-269 ◽  
Author(s):  
Osamu Sato ◽  
Eiichi Mine ◽  
Mitsumasa Osada ◽  
Norihito Hiyoshi ◽  
Aritomo Yamaguchi ◽  
...  
Keyword(s):  
High Temperature ◽  
Ethylene Glycol ◽  
Liquid Water ◽  
Terephthalic Acid ◽  
Ethylene Terephthalate ◽  
Poly Ethylene Terephthalate ◽  
Temperature Liquid ◽  
Poly Ethylene

Poly(ethylene terephthalate) copolymers with a smaller amount of poly(ethylene glycol)s and poly(butylene glycol)s

Polymer ◽  
1995 ◽  
Vol 36 (13) ◽  
pp. 2629-2635 ◽  
Author(s):  
Tsuyoshi Kiyotsukuri ◽  
Tsuyoshi Masuda ◽  
Naoto Tsutsumi ◽  
Wataru Sakai ◽  
Minoru Nagata
Keyword(s):  
Ethylene Glycol ◽  
Ethylene Terephthalate ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene
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