Polybutylene terephthalate

• CAS: 30965-26-5
• Catalog Number: ACM30965265
• Category: Polymer/Macromolecule
• Molecular Weight: 284.3g/mol
• Molecular Formula: C14H20O6
• IUPAC Name: butane-1,4-diol;dimethyl benzene-1,4-dicarboxylate
• SMILES: COC(=O)C1=CC=C(C=C1)C(=O)OC.C(CCO)CO
• InChI: InChI=1S/C10H10O4.C4H10O2/c1-13-9(11)7-3-5-8(6-4-7)10(12)14-2;5-3-1-2-4-6/h3-6H,1-2H3;5-6H,1-4H2
• InChI Key: DHQLHXKTPYFDCS-UHFFFAOYSA-N
• Melting Point: 225°C
• Density: 1.31
• Application: Polybutylene Terephthalate (PBT) serves as a medium performance engineering polymer, offering a combination of properties that make it ideal for various applications. It is produced through a multi-step industrial process involving the transesterification of dimethyl terephthalate with 1,4-butanediol, followed by polycondensation. This semicrystalline thermoplastic polyester is known for its excellent tensile strength, toughness, and low water absorption. PBT's favorable frictional properties, along with its robust chemical resistance and superior electrical properties, make it particularly suitable for producing connectors, capacitors, cable enclosures, and components in hot appliances like irons and kettles. When reinforced with glass fibers, PBT exhibits enhanced stiffness and mechanical strength, making it a versatile choice in engineering applications.
• Alpha Sort: Polybutylene terephthalate
• Complexity: 210
• Covalently-Bonded Unit Count: 2
• EC Number: 608-561-9
• Exact Mass: 284.125988g/mol
• Formal Charge: 0
• H-Bond Acceptor: 6
• H-Bond Donor: 2
• Heavy Atom Count: 20
• Monoisotopic Mass: 284.125988g/mol
• Rotatable Bond Count: 7