2009
DOI: 10.1002/app.29527
|View full text |Cite
|
Sign up to set email alerts
|

Synthesis and characterization of unsaturated polyesters based on the aminolysis of poly(ethylene terephthalate)

Abstract: The depolymerization of poly(ethylene terephthalate) via an aminolysis process was studied. An excess of ethanol amine in the presence of sodium acetate as a catalyst was used to produce bis(2-hydroxyl ethylene) terephthalamide (BHETA). Unsaturated polyester (UP) resins were obtained by the reaction of BHETA with different long-chain dibasic acids such as decanedioic acid, tetradecanoic acid, and octadecanoic acid in conjunction with maleic anhydride as a source of unsaturation. The chemical structure of the U… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1
1

Citation Types

0
15
0

Year Published

2010
2010
2021
2021

Publication Types

Select...
7

Relationship

0
7

Authors

Journals

citations
Cited by 28 publications
(15 citation statements)
references
References 40 publications
0
15
0
Order By: Relevance
“…53 Shukla and Harad investigated aminolytic depolymerization of PET waste, including fibers and disposable soft drink bottles by using excess ethanolamine (EA). The PET to ethanolamine molar ratio was fixed at 1:6, and glacial acetic acid, sodium acetate, and potassium sulphate were used as catalysts at a concentration ranging from 0.3% to 55 Shamsi et al also followed the scenario introduced by Shukla and Harad to produce BHETA. Afterward polyurethanes were synthesized using BHETA, 1,4-butanediol, ether-type polyol, and various molar ratios of hexamethylene diisocyanate (HDI).…”
Section: Aminolysismentioning
confidence: 99%
See 1 more Smart Citation
“…53 Shukla and Harad investigated aminolytic depolymerization of PET waste, including fibers and disposable soft drink bottles by using excess ethanolamine (EA). The PET to ethanolamine molar ratio was fixed at 1:6, and glacial acetic acid, sodium acetate, and potassium sulphate were used as catalysts at a concentration ranging from 0.3% to 55 Shamsi et al also followed the scenario introduced by Shukla and Harad to produce BHETA. Afterward polyurethanes were synthesized using BHETA, 1,4-butanediol, ether-type polyol, and various molar ratios of hexamethylene diisocyanate (HDI).…”
Section: Aminolysismentioning
confidence: 99%
“…Then, the different chemical structure unsaturated polyesters were synthesized by the reaction of BHETA with maleic anhydride (MA) and saturated aliphatic dibasic acids such as decanedioic acid (DA), tetradecanedioic acid (TDA), and octadecanedioic acid. In order to verify the structure of the prepared polyesters, H‐NMR was used (ODA) 55 …”
Section: Chemical Recycling Of Petmentioning
confidence: 99%
“…(Achilias et al, 2011;Hoang and Hen, 2013). Different products formed in aminolysis reactions can be used for various applications such as synthesis of plasticiser for polyvinyl chloride (PVC) (More et al, 2014a(More et al, , 2014bAchilias et al, 2010), unsaturated polyester resin (Elsaeed and Farag, 2009), polyurethane resin (Kapadi et al, 2015;Sadeghi et al, 2011), polyesteramide resin (More et al, 2014(More et al, , 2014b, surfactants (El-Sherbiny et al, 2010), etc. Hence, recycling of PET not only solves its environmental concern but also helps in value creation.…”
Section: Introductionmentioning
confidence: 99%
“…During aminolysis of PET with methylamine, the methyl terephthalamide is obtained, which is not enough reactive for its recycling into any useful product through further reactions 22. Earlier, in our laboratory, we have carried out aminolysis of PET waste using ethanol amine to get pure bis (2‐hydroxy ethylene) terephthalamide16 which has been utilized in synthesis of polyurethanes,26,27 unsaturated polyesters,28 epoxy hardners,26 and nonionic polymeric surfactants 29…”
Section: Introductionmentioning
confidence: 99%