Poly(ethylene glycol)

Poly(ethylene glycol)

Poly(ethylene glycol)

NAMES AND IDENTIFIERS OF POLYMER

POLYMER CLASS	Polyglycol
COMMON NAMES	Poly(ethylene glycol), Carbowax®
STRUCTURE BASED NAME	Poly(oxyethylene), Poly(ethylene oxide)
ACRONYMS	PEO, POE, PEG
CAS #	25322-68-3
CurlySMILES	O{-}CC(n+}

IDENTIFIERS OF MONOMER(S)

CAS #	75-21-8
COMMON NAMES	Oxirane
SMILES	O1CC1
Std. InChI	1S/C2H4O/c1-2-3-1/h1-2H2
Std. InChIKey	IAYPIBMASNFSPL-UHFFFAOYSA-N
STRUCTURE

Thermo-Physical Properties: Experimental / Literature Data

PROPERTY	UNIT	VALUE / RANGE	PREFERRED
Molar Volume V_m	mL mol^-1	38.9 - 39.2	39.0
Density ρ	g mL^-1	1.13	1.13
Solubility Parameter δ	MPa^1/2	18.8 - 23.7	20.4
Molar Cohesive Energy E_coh	J mol^-1	14000 - 22400	16200
Glass Transition Temperature T_g	K	206 - 207 243 - 246	207 245 Average: 225
Molar Heat Capacity C_p	J (mol K)^-1	90 - 92	91
Entanglement Molecular Weight M_e	g mol^-1	1700 - 2200	2000
Index of Refraction n	none	1.46 - 1.51	1.46

Thermo-Physical Properties: Calculated Data

PROPERTY	UNIT	VALUE / RANGE	PREFERRED
Molecular Weight of Repeat unit	g mol^-1	44.05
Van-der-Waals Volume V_vW	mL mol^-1	22.53
Molar Volume V_m	mL mol^-1	37.6 - 42.7	39.8
Density ρ	g mL^-1	1.03 - 1.17	1.11
Solubility Parameter δ	MPa^1/2	18.6 - 20.6	19.4
Molar Cohesive Energy E_coh	J mol^-1	14500 - 15900	15100
Glass Transition Temperature T_g	K	200 - 204 251	202 251
Molar Heat Capacity C_p	J (mol K)^-1	93 - 96	94
Entanglement Molecular Weight M_e	g mol^-1	1900 - 2350	2100
Index of Refraction n	none	1.46 - 1.48	1.47

Last updated: October 11, 2015

back to top