Poly(isobutylethylene)

Poly(isobutylethylene)

Poly(isobutylethylene)

NAMES AND IDENTIFIERS OF POLYMER

POLYMER CLASS	Polyalkene (Polyolefin)
COMMON NAMES	Poly(isobutylethylene)
STRUCTURE BASED NAME	Poly(4-methylpent-1-ene), Poly[1-(2-methylpropyl)ethylene]
ACRONYMS	PMP, TPX (Mitsui Chemicals)
CAS #	25068-26-2
CurlySMILES	C{-}(CC(C)C)C{n+}

IDENTIFIERS OF MONOMER(S)

CAS #	25068-26-2
COMMON NAMES	Isobutylethylene
SMILES	C=CCC(C)C
Std. InChI	1S/C6H12/c1-4-5-6(2)3/h4,6H,1,5H2,2-3H3
Std. InChIKey	WSSSPWUEQFSQQG-UHFFFAOYSA-N
STRUCTURE

Thermo-Physical Properties: Experimental / Literature Data

PROPERTY	UNIT	VALUE / RANGE	PREFERRED
Molar Volume V_m	mL mol^-1	100.4 - 101.0	100.8
Density ρ	g mL^-1	0.83 - 0.84	0.84
Solubility Parameter δ	MPa^1/2	13.7 - 15.3¹	14.5
Molar Cohesive Energy E_coh	J mol^-1	13700 - 15300	21200
Glass Transition Temperature T_g	K	297 - 333	302
Molar Heat Capacity C_p	J (mol K)^-1	141 - 144	142 (s)
Entanglement Molecular Weight M_e	g mol^-1
Index of Refraction n	none	1.46 - 1.47	1.46

Thermo-Physical Properties: Calculated Data

PROPERTY	UNIT	VALUE / RANGE	PREFERRED
Molecular Weight of Repeat unit	g mol^-1	84.16
Van-der-Waals Volume V_vW	mL mol^-1	61.68
Molar Volume V_m	mL mol^-1	93.3 - 103.1	98.6
Density ρ	g mL^-1	0.82 - 0.90	0.85
Solubility Parameter δ	MPa^1/2	15.2 - 16.0	15.7
Molar Cohesive Energy E_coh	J mol^-1	23700 - 25300	24500
Glass Transition Temperature T_g	K	263 - 302	279
Molar Heat Capacity C_p	J (mol K)^-1	144 - 150 175 - 177	147 (s) 177 (l,r)
Entanglement Molecular Weight M_e	g mol^-1	7400 - 9700	8200
Index of Refraction n	none	1.46 - 1.47	1.46

¹Calculated from surface tension with Krevelen's Method

Last updated: February 4, 2017

back to top