Poly(alpha-methylstyrene)
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Poly(α-methylstyrene)
 

NAMES AND IDENTIFIERS OF POLYMER

POLYMER CLASS Polystyrenes
COMMON NAMESPoly(α-methylstyrene)
STRUCTURE BASED NAME Poly[1-(α-methylphenyl)ethane-1,2-diyl], Poly(α-methylphenylethylene)
ACRONYMS PAMS, PαMS
CAS # 25014-31-7
CurlySMILES C{-}C{n+}(C)(c1ccccc1)
 

IDENTIFIERS OF MONOMER(S)

CAS # 25014-31-7
COMMON NAMESα-Methylstyrene
SMILES CC(=C)c1ccccc1
Std. InChI 1S/C9H10/c1-8(2)9-6-4-3-5-7-9/h3-7H,1H2,2H3
Std. InChIKey XYLMUPLGERFSHI-UHFFFAOYSA-N
STRUCTURE
Poly(α-methylstyrene)
 

Thermo-Physical Properties: Experimental / Literature Data

PROPERTYUNITVALUE / RANGEPREFERRED
Molar Volume VmmL mol-1109.9 - 111.0110.4
Density ρg mL-1 1.06 - 1.081.07
Solubility Parameter δMPa1/2 17.6 - 19.318.4
Molar Cohesive Energy EcohJ mol-1 35400 - 4260037200
Glass Transition Temperature TgK 435 - 455445
Molar Heat Capacity CpJ (mol K)-1150
Entanglement Molecular Weight Meg mol-113000 - 2300016000
Index of Refraction nnone1.59
 

Thermo-Physical Properties: Calculated Data

PROPERTYUNITVALUE / RANGEPREFERRED
Molecular Weight of Repeat unitg mol-1 118.18
Van-der-Waals Volume VvWmL mol-1 76.56
Molar Volume VmmL mol-1113.8 - 115.2114.4
Density ρg mL-1 1.03 - 1.041.04
Solubility Parameter δMPa1/2 17.7 - 18.818.5
Molar Cohesive Energy EcohJ mol-1 36100 - 4030039100
Glass Transition Temperature TgK 401 - 469435
Molar Heat Capacity CpJ (mol K)-1146 - 158152
Entanglement Molecular Weight Meg mol-115900 - 2250016700
Index of Refraction nnone1.59 - 1.621.60
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