Poly[(tetramethylene terephthalate)
CROW logo
Poly(butylene terephthalate)
 

NAMES AND IDENTIFIERS OF POLYMER

POLYMER CLASS Polyesters
COMMON NAMESPoly[(tetramethylene terephthalate), Poly(1,4-butylene terephthalate), Poly[(butane-1,4-diol)-alt-(terephthalic acid)]
STRUCTURE BASED NAME Poly(oxybutane-1,4-diyloxyterephthaloyl), Poly(oxytetramethyleneoxyterephthaloyl)
ACRONYMS PBT
CAS # 24968-12-5
CurlySMILES O{-}C(=O)c1ccc(cc1)C(=O)OCCCC{n+}
 

IDENTIFIERS OF MONOMER(S)

CAS # 60088-54-2.110-63-4
COMMON NAMESTerephthalic acid + 1,4-Butanediol
SMILES OC(=O)c1ccc(cc1)C(=O)O.OCCCCO
Std. InChI 1S/C8H6O4/c9-7(10)5-1-2-6(4-3-5)8(11)12/h1-4H,(H,9,10)(H,11,12).1S/C4H10O2/c5-3-1-2-4-6/h5-6H,1-4H2
Std. InChIKey KKEYFWRCBNTPAC-UHFFFAOYSA-N.WERYXYBDKMZEQL-UHFFFAOYSA-N
STRUCTURE
 

Thermo-Physical Properties: Experimental / Literature Data

PROPERTYUNITVALUE / RANGEPREFERRED
Molar Volume VmmL mol-1168.1
Density ρg mL-1 1.31
Solubility Parameter δMPa1/2 22.4
Molar Cohesive Energy EcohJ mol-1 87700
Glass Transition Temperature TgK 290 - 353313
Molar Heat Capacity CpJ (mol K)-1268
Entanglement Molecular Weight Meg mol-1
Index of Refraction nnone
 

Thermo-Physical Properties: Calculated Data

PROPERTYUNITVALUE / RANGEPREFERRED
Molecular Weight of Repeat unitg mol-1 220.22
Van-der-Waals Volume VvWmL mol-1 116.86
Molar Volume VmmL mol-1167.6 - 178.2174.0
Density ρg mL-1 1.24 - 1.311.27
Solubility Parameter δMPa1/2 20.8 - 21.221.0
Molar Cohesive Energy EcohJ mol-1 72300 - 7990076400
Glass Transition Temperature TgK 313 - 325313
Molar Heat Capacity CpJ (mol K)-1265 - 283274
Entanglement Molecular Weight Meg mol-11200 - 20001600
Index of Refraction nnone1.54 - 1.571.55
back to top