Deltech Monomers Vinyl Toluene (VT)

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Deltech Vinyl Toluene (VT) is a mixture of methylstyrene isomers, with approximately 55% meta and 45% para isomer distribution. This reactive monomer readily polymerizes to form a high-clarity, colorless polymer with excellent electrical and physical properties. In many applications, VT demonstrates superior properties compared to styrene monomer.

Chemical Name: Vinyltoluene

Chemical Family: Vinyls, Vinylics & Vinyl Derivatives

Minimum Assay: 99.2 - 99.5 %

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Enhanced TDS

Identification & Functionality

Typical Isomer Distribution:
45% Para
55% Meta

Features & Benefits

VT is a reactive monomer which readily polymerizes to form a high clarity, colorless polymer with excellent electrical and physical properties. Like styrene monomer, VT monomer can be polymerized by any of the conventional methods of initiation and in the presence of inert materials such as fillers, dyes, solvents, resins, rubbers and plasticizers. Copolymerization of VT monomer with other monomers such as acrylate, acrylonitrile, butadiene, divinylbenzene or methacrylate and maleic anhydride yields products with wide variations of physical properties.

Applications & Uses

  • VT monomer is widely used in the coatings industry as a modifier for drying oils and oil modified alkyds. These monomer modified resins have good chemical resistance, fast drying, durability, excellent solution color and color retention properties. Another important advantage for VT modified oils and alkyds is their solubility in low cost solvents.
  • VT monomer is used as a replacement for styrene monomer in unsaturated polyester resins (UPR) where high temperature cures combined with less shrinkage are desired. UPRs formulated with VT monomer exhibit a lower vapor pressure at any temperature and a higher flash point.


ValueUnitsTest Method / Conditions
Refractive Index (n25D)1.5395
Density (at 25°C)0.893g/cc
Surface Tension (at 25°C)31.0dynes-cm-¹
Boiling Point (at 760mm Hg)168.0°C
Heat of Vaporization (at 25°C)98.2cal/g
Freezing Point-77.0°C
Volume Concentration on Polymerization (at 25°C)12.0%
Specific Heat (at 25°C)0.413cal/g °C
Carbonyls (CHO)10.0ppmASTM D-2119-82
Viscosity (at 25°C)0.78cps
Vapor Pressure (at 40°C)4.0mm.Hg
Vapor Pressure (at 80°C)35.0mm.Hg
Vapor Pressure (at 120°C)176.0mm.Hg
Vapor Pressure (at 180°C)616.0mm.Hg
Heat of Polymerization15 - 17Kcal mole-¹
Copolymerization (Q Values)1.06
Copolymerization (e Values)-0.78
ValueUnitsTest Method / Conditions
Molecular Weight160.26g/mol
ValueUnitsTest Method / Conditions
Minimum Assay99.2 - 99.5%
Isomer Distribution (Para)45.0%GC
Isomer Distribution (Meta)55.0%GC
PolymerNegativeppmASTM D-2121-84
Inhibitor TBC12.0ppm

Regulatory & Compliance

Storage & Handling

Typical precautions in handling VT monomer include wearing protective clothing, the use of impermeable gloves and use in a well ventilated area. Do not store in direct sunlight. Maintain storage temperature below 75oF if extended storage is required. VT monomer contains the polymerization inhibitor tertiary butylcatechol (TBC) to reduce polymer formation during storage. For other product safety and toxicological information, please consult the Material Safety Data Sheets for VT monomer.