Poly(ethylene terephthalate)
-
Poly(ethylene terephthalate)
structure -
-
CAS No:
25038-59-9
-
Formula:
(C10H8O4)n
-
Chemical Name:
Poly(ethylene terephthalate)
-
Synonyms:
Poly(oxy-1,2-ethanediyloxycarbonyl-1,4-phenylenecarbonyl);Poly(oxyethyleneoxyterephthaloyl);Mylar;Tergal;Poly(ethylene terephthalate);Poly(ethylene glycol terephthalate);Arnite G;Hostaphan;Superfloc (polyester);Lumirror;Ethylene glycol-terephthalic acid polymer SRU;Ethylene glycol-terephthalic acid polymer;Ethylene terephthalate polymer;Terephthalic acid polyethylene ester;Mylar C 25;Hostadur A;Estrofol B;Cassappret SR;Dimethyl terephthalate-ethylene glycol polymer,SRU;Lavsan;Hostadur;Mylar A;1,4-Benzenedicarboxylic acid,polymer with 1,2-ethanediol;Poly(ethylene terephthalate),SRU;Hostadur K-VP 4022;Melinex O;Nitron (polyester);Estrofol;Scotchpar;Estrofol Ow;KLT 40;Iambolen;Lawsonite (polymer);Terom;Celanar;Hostadur K;Arnite A;Crastin S 330;Crastin S 350;Crastin S 440;Dimethyl terephthalate-1,2-ethanediol polymer,SRU;1,4-Benzenedicarboxylic acid,dimethyl ester,polymer with 1,2-ethanediol;Arnite G 600;Pegoterate;Meliform;Nitron Lavsan;Mylar T;Mylar C;Amilar;Fiber V;Arnite FP 800;Hostaphan RN;Arnite A 200;Lawsonite;VFR 3801;Nitron;Ethylene glycol-terephthalic acid copolymer;Mylar HS;Lumirror 100;Hostaphan BNH;RT 560;Diafoil 75;Melinex S;Diafoil 40;Crastin E 150;Crastin 2813;Arnite A 300;Tenite 7970;Petra A;ClearTuf VPE 5792AS;Kinmar;Arnite A 04-120;Elit 25;Enka T 716;Rynite 530;Rynite 545;PET-RT 580c;Ellit;Mylar D;Vituf VFR 180;PE 943B;Tenite 7741;VFR 504;Yambolen;VFR 5041;9009-28-3;9078-56-2;37310-81-9;50957-87-4;53025-16-4;53025-17-5;54174-21-9;54514-65-7;59678-67-0;61036-90-6;61584-27-8;61811-51-6;65430-85-5;66167-61-1;67166-79-4;68417-76-5;70699-75-1;71119-53-4;71343-17-4;72099-33-3;73201-87-3;73379-71-2;76688-71-6;81031-65-4;82115-47-7;82446-87-5;85410-98-6;85764-49-4;86338-40-1;87501-81-3;87659-51-6;88385-73-3;88385-74-4;89234-24-2;89338-48-7;89493-30-1;92769-05-6;97666-67-6;97794-10-0;104492-25-3;108251-89-4;109617-01-8;109617-15-4;110158-43-5;112024-92-7
- Categories:
-
CAS No:
Poly(ethylene terephthalate) Use and Manufacturing
Used in electrical parts including relay bases and lamp sockets, pump housings, gears, sprockets, chair arms, casters and furniture components. The first stage to produce Polyethylene Terephthalate (PET) is the reaction of ethylene glycol with terephthalic acid or dimethyl terephthalate. After the initial reaction, two or three polymerization steps are then performed, depending on the required molecular weight. The chemical structure of PET is composed of repeated units. Each unit has a physical length of about 1.09 nm and a molecular weight of ~200. PET monomer consists from an aromatic ring coupled with a short aliphatic chain that makes PET a stiff molecule as compared to other aliphatic polymers such as polyolefin or polyamide. The lack of segmental mobility in the polymer chains results in relatively high thermal stability. A textile grade polymer will have an average number of 100 repeat units per molecule so that the extended length of the typical polymer chain is about 100 nm with a molecular weight of ~20,000. Higher levels of polymerization produce higher strength fibers but the melt viscosity and stability of the melt to even tiny amounts of moisture causes hydrolytic degradation.
Photo-degradation of PET occurs after exposure to near-ultraviolet light resulting in either chain scission by Norrish I and II reactions. Cross-linking also takes place and polymer becomes brittle, discolored, and with uneven surface. PET when exposed to UV light degrades rather rapidly leading to deterioration in physical and mechanical properties and develops intense yellow color. It has been suggested that the photo-oxidation of PET involves the formation of hydroperoxide species through oxidation of the CH2 groups adjacent to the ester linkages and the hydroperoxide species involving the formation of photoproducts through several pathways. The ester moieties in the terephthalate moiety as well as CH2 groups are strongly involved in the photo-degradation of PET. The vinyl ester ends also act as cross-linkers and gelling agents. They polymerize and the polymers thermally degrade to give yellow or brown polyenes that discolor the final polymer. The formation of highly conjugated species is catalyzed by carboxyl groups. The formation of colored species is followed by increase of more carboxyl terminated species. Hence, the product having higher carboxyl value is subject to more discoloration. Furthermore, as the carboxyl content increases, the thermo-oxidative stability decreases. The carboxyl end groups act as catalysts for further degradation.
Plasticizers
Plastic material and resin manufacturing|Poly(oxy-1,2-ethanediyloxycarbonyl-1,4-phenylenecarbonyl): ACTIVE|XU - indicates a substance exempt from reporting under the Chemical Data Reporting Rule, (40 CFR 711).
Cosmetics -> Film forming
Computed Properties
Molecular Weight:228.20
Hydrogen Bond Donor Count:4
Hydrogen Bond Acceptor Count:6
Rotatable Bond Count:3
Exact Mass:228.06338810
Monoisotopic Mass:228.06338810
Topological Polar Surface Area:115
Heavy Atom Count:16
Complexity:175
Covalently-Bonded Unit Count:2
Compound Is Canonicalized:Yes
Price Analysis
- Data: 2026-09-04
- Price: 8258.75Yuan/mt
- Change: 5.83
Recommended Suppliers of Poly(ethylene terephthalate)
-
![China]()
CN
5 YRS
Business licensed Certified factoryManufactory Supplier of peptideInquiryCAS No.: 25038-59-9Grade: Industrial GradeContent: 100% -
![China]()
CN
5 YRS
Business licensed Certified factoryManufactory Supplier of Chemical Pesticides,Food Additives,Agrochemicals,Active Pharm Ingredients,Flavors and Fragrances,Chemical Catalyst,Chemical Materials,Chem&Pharm Intermediates,Organic Intermediates,Feed Additive -
![China]()
CN
11 YRS
Business licensed Certified factoryManufactory Supplier of polyester chip -
![China]()
CN
11 YRS
Business licensed Certified factoryManufactory Supplier -
![China]()
CN
2 YRS
Business licensedTrader Supplier of Tetrachloroethylene
Learn More Other Chemicals
-
Poly(ethylene glycol) diacrylate
26570-48-9
-
Poly(ethylene glycol) bis(p-dimethylaminobenzoate)
71512-90-8
-
Poly(ethylene glycol fumarate)
27496-67-9
-
Poly(ethylene phthalate) Formula
25610-19-9
-
Poly(ethylene glycol) distearate Formula
9005-08-7
-
Poly(ethylene glycol) distearate Formula
9005-08-7
-
POLY(ETHYLENE GLYCOL) TRIPHENYLPHOSPHINE Structure
238403-28-6
-
Cyclohexyl methacrylate Structure
101-43-9
-
What is Triacetin
102-76-1
-
What is Bis(2-ethylhexyl) adipate
103-23-1