Catalog Number
ACM24936412-4
Product Name
poly(4-methyl styrene)
Description
P-methylstyrene appears as a clear colorless liquid with an aromatic odor. Usually shipped with an inhibitor such as tert-butyl catechol added May polymerize if contaminated or subjected to heat. If polymerization takes place inside a closed container, the container may rupture violently. Vapors irritate the mucous membranes. Less dense than water and insoluble in water. Hence floats on water. Used in making plastics, especially as a monomer for polyesters.;Liquid;COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR.
IUPAC Name
1-ethenyl-4-methylbenzene
Molecular Weight
118.18g/mol
Molecular Formula
CH3C6H4CH=CH2;C9H10;C9H10
Canonical SMILES
CC1=CC=C(C=C1)C=C
InChI
InChI=1S/C9H10/c1-3-9-6-4-8(2)5-7-9/h3-7H,1H2,2H3
InChI Key
JLBJTVDPSNHSKJ-UHFFFAOYSA-N
Boiling Point
172.8 °C;172 °C;173 °C
Melting Point
-34.1 °C;-37.8 °C;-34 °C
Flash Point
125 to 127 °F (NFPA, 2010);46 °C (115 °F) - closed cup;52.8 °C
Density
0.9173 g/cu cm at 25 °C;Relative density (water = 1): 0.897
Solubility
7.53e-04 M;In water, 89 mg/L at 25 °C;Insoluble in water;Soluble in benzene;Solubility in water: none
Covalently-Bonded Unit Count
1
EC Number
210-762-8;215-292-7
Heat of Vaporization
6.20X10+07 J/kmol at 25 °C
Log P
log Kow = 3.35;3.580
MeSH Entry Terms
1-ethenyl-4-methylbenzene;4-ethenylmethylbenzene;4-vinyltoluene
Monoisotopic Mass
118.07825g/mol
Other Experimental
Liquid molar volume = 0.129067 cu m/kmol; heat of formation = 1.1464X10+08 J/kmol;Henry's Law constant = 3.2X10-3 atm-cu m/mole at 25 °C (est);Hydroxyl radical reaction rate constant = 3.15X10-11 cu cm/molec-sec at 25 °C;Ozone reaction rate constant = 2.1X17-11 cu cm/molec-sec at 25 °C
Refractive Index
Index of refraction: 1.5420 at 20 °C/D
Stability
Stable under recommended storage conditions.
Vapor Density
Relative vapor density (air = 1): 4.1
Vapor Pressure
1.81 mmHg;1.81 mm Hg at 25 °C;Vapor pressure, kPa at 20 °C:
Viscosity
0.0020986 Pa.s (liquid) at 239.02 K