Monomer Products

Overview


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Divinylbenzene 63% (DVB63)

63% DVB MONOMER (DVB63)

63% DVB monomer produced by Deltech LLC is a reactive monomer composed of divinylbenzene and ethylvinylbenzene isomers. Primary applications have been in synthesis of ion-exchange resins and the production of unsaturated polyester resins and casting resins where DVB is used as a cross-linking agent to provide rigidity. Due to the higher concentration of the reactive component divinlybenzene, 63% DVB provides greater crosslinking capabilities than 55% DVB monomer.

Molecular Weight:  130.19

Typical Composition:  63% DVB, 37% EVB

DVB80 molecule

Typical Monomer Values

Divinylbenzene62-65%
Ethylvinylbenzene 34-37%
Total polymerizables (DVB & EVB)96.0% min.
*Low Boilers0.5% max.
Diethylbenzene0.5% max.
**High Boilers (other than Naphthalene)<0.5% max.
Naphthalene1000 ppm max.
Color, Varnish Scale3 max.
***Polymer20 PPM max.
Inhibitor (p-tert butyl catechol)1000-1200 PPM
Specific Gravity 60oF/60oF)0.915
Flash Point, Tag Open Cup170oF 
Weight (60oF)7.6 lbs/gallon
*Total of impurities lower than Diethylbenzene
**Total of impurities higher than p-DVB, excluding Naphthalene
***Similar to ASTM polymer method for styrene monomer; use styrene polymer for standard

Packaging

63% DVB monomer is available in 55-gallon drums (non-returnable, DOT Specification 17E), tank trucks and tank cars. Sample quantities are available upon request.


Storage and Handling

63% DVB monomer is a highly reactive and flammable liquid which requires use of proper storage techniques and adequate ventilation, fire protection, and static electricity protection during transfer and use.

Due to high reactivity, violent reaction may occur if uncontrolled polymerization is initiated. Product in drums should not be exposed to direct sunlight and should be stored in a cool area. Bulk storage tanks should be refrigerated to maintain temperatures below 80oF.

To prevent polymerization, the inhibitor tertiary-butyl catechol (TBC) is added to 63% DVB monomer. Normal inhibitor concentration is 900-1200 PPM. Over time, the inhibitor concentration may become depleted. Lower concentration will not adversely affect the DVB unless the level falls below 900 PPM. At this point inhibitor should be added to restore the concentration to 900-1200 PPM range.

Due to flammability danger, exposure of 63% DVB monomer to air should be limited. Containers should be kept closed at all times. However, presence of oxygen is required to maintain activity of the inhibitor. Complete inerting of the product is not recommended. Water extracts the inhibitor and should not be allowed to contact DVB.

Prolonged or repeated contact with the skin or breathing of vapors should be avoided. See the Material Safety Data Sheet for complete safety and toxicological information.

Nothing contained herein is to be construed as a recommendation to use any product in conflict with any patent. Deltech LLC makes no warranties as to the fitness of merchantability of any product referred to, no guarantee of satisfactory results from reliance upon contained information or recommendation, and disclaims all liability for any resulting loss or damage.

Divinylbenzene 80% (DVB80)

80% DVB MONOMER (DVB80)

80% DVB monomer produced by Deltech LLC is a reactive monomer composed primarily of divinylbenzene and ethylvinylbenzene isomers. Primary applications have been in synthesis of ion-exchange resins and production of unsaturated polyester resins and casting resins where DVB is used as a cross-linking agent to provide rigidity.

Molecular Weight: 130.19

Typical Composition:  80% DVB, 20% EVB

DVB80 molecule

Typical Monomer Values

Divinylbenzene80-83%
Ethylvinylbenzene16-20%
Total polymerizables (DVB & EVB)96.0% min.
*Low Boilers1.0% max.

Diethylbenzene0.5% max.
**High Boilers (other than Naphthalene1.0% max.

Naphthalene1000 ppm max.
Color, Varnish Scale3 max.
***Polymer50 PPM max.

Inhibitor (p-tert butyl catechol)1000-1200 PPM
Specific Gravity 60oF/60oF)0.911
Flash Point, Tag Closed Cup158oF 
Weight (60oF)7.6 lbs/gallon
*Total of impurities lower than Diethylbenzene
**Total of impurities higher than p-DVB, excluding Naphthalene
***Similar to ASTM polymer method for styrene monomer; use styrene polymer for standard  


Packaging

80% DVB monomer is available in 55-gallon drums (non-returnable, DOT Specification 17E), tank trucks and tank cars. Sample quantities are available upon request.


Storage and Handling

80% DVB monomer is a highly reactive and flammable liquid which requires use of proper storage techniques and adequate ventilation, fire protection and static electricity protection during transfer and use.

Due to high reactivity, violent reaction may occur if uncontrolled polymerization is initiated. Product in drums should not be exposed to direct sunlight and should be stored in a cool area. Bulk storage tanks should be refrigerated to maintain temperatures below 80oF.

To prevent polymerization, the inhibitor tertiary-butyl catechol (TBC) is added to 80% DVB monomer. Normal inhibitor concentration is 900-1200 PPM. Over time, the inhibitor concentration may become depleted. Lower concentration will not adversely affect the DVB unless the level falls below 900 PPM. At this point inhibitor should be added to restore the concentration to the 900-1200 PPM range.

Due to flammability danger, exposure of 80% DVB monomer to air should be limited. Containers should be kept closed at all times. However, presence of oxygen is required to maintain activity of the inhibitor. Complete inerting of the product is not recommended. Water extracts the inhibitor and should not be allowed to contact DVB.

Prolonged or repeated contact with the skin or breathing of vapors should be avoided. See the Material Safety Data Sheet for complete safety and toxicological information

Nothing contained herein is to be construed as a recommendation to use any product in conflict with any patent. Deltech LLC makes no warranties as to the fitness of merchantability of any product referred to, no guarantee of satisfactory results from reliance upon contained information or recommendation, and disclaims all liability for any resulting loss or damage

para-Methylstyrene (PMS)

PMS MONOMER

PMS monomer produced by Deltech LLC is suggested for evaluation as a replacement for vinyltoluene and styrene monomers. PMS monomer has chemical properties and polymerization behavior similar to both vinyltoluene and styrene monomers.

Molecular Weight:   118.18

Typical Isomer Distribution: 95% Para, 5% Meta

VT Molecule

In applications where vinyltoluene monomer is replaced by PMS monomer, property improvements related to the higher para-content and polymerizables are obtained. Direct substitution of PMS monomer for vinyltoluene can be made with minimal reformulation to obtain equal or improved performance when used in specialty coatings, sealants and adhesives.

Use of PMS monomer as a partial or complete replacement for styrene monomer in unsaturated polyester resin applications results in lower resin vapor pressure at any temperature and a higher flashpoint. Lower shrinkage during molding, higher thermal properties and greater tensile strength in glass-filled applications can be expected from polymerized resin products.

PMS monomer can replace styrene monomer in homopolymers, impact polymers, acrylonitrile-butadiene terpolymers, specialty copolymers, elastomers and thermosetting polyesters. Homo and copolymers prepared from PMS monomer have been found to possess lower specific gravity, higher flow properties and improved heat distortion than the corresponding styrene-based analogs. In thermosetting polyester applications, higher heat distortion, faster molding cycles, and better electrical properties have been demonstrated. Also, fire retarding properties can be obtained with lower dosages of flame retardant additives and the molecular structure of PMS polymers can be modified through radiation and chemical crosslinking.

Typical precautions in handling PMS 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. PMS 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 PMS monomer.

Typical Monomer Values

Chemical AnalysisTest MethodPMSVTStyrene
Purity, Weight % vinylGC99.299.299.7
Isomer DistributionGC
    Para %95.045.0
    Meta %5.055.0
    Ortho %0.3
Polymer, ppmASTM D-2121-84Neg.Neg.Neg.
Carbonyls, ppm as – CHOASTM D-2119-82101010
Inhibitor, ppm TBCASTM D-4590255012
Chlorides, ppmXRF6510
Sulfur, ppmXRF252525
Physical Properties
Refractive Index, n25D1.54081.53951.5440
Density, g cm-3@ 25oC (77oF)0.8920.8930.902
Viscosity, cps @ 25o0.790.780.72
Surface Tension, dynes-cm-1 @ 25oC343132
Boiling Point, oC @ 760 mm HG170168145
Freezing Point, oC-34-77-31
Volume Concentration on Polymerization
% calculated @ 25oC121214
Vapor Pressure, mm HG at
     40oC (104oF)4414
     80oC (176oF)353590
   120oC (248oF)170176368
   160oC (320oF)5806161114
Heat of Polymerization, Kcal mole-115-1715-1717
Copolymerization Q & e values
    Q1.271.061.00
    e-0.98-0.78-0.80
Heat of Vaporization, cal/g @ 25oC98.2102.4
Specific Heat, cal/goC @25oC0.4130.408
Solvent Compatibility:Completely compatible with Acetone, Carbon Tetrachloride, Benzene,
N-Heptane and Ethanol.


Nothing contained herein is to be construed as a recommendation to use any product in conflict with any patent. Deltech LLC makes no warranties as to the fitness of merchantability of any product referred to, no guarantee of satisfactory results from reliance upon contained information or recommendation, and disclaims all liability for any resulting loss or damage.

Vinyl Toluene (VT)

VT MONOMER

VT monomer produced by Deltech LLC is a mixture of methylstyrene isomers with approximately 55% meta and 45% para isomer distribution. The monomer has chemical properties and polymerization behavior similar to styrene monomer but provides superior properties in many applications. Applications requiring a single methylstyrene isomer should consider Deltech’s PMS monomer which contains 95% para-methylstyrene.

Molecular Weight:   118.18

Typical Isomer Distribution: 45% Para, 55% Meta

VT Molecule

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.

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.

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.

Typical Monomer Values
Chemical AnalysisTest MethodVTPMSTBSStyrene
Purity, Weight % vinylGC99.299.2>95.099.7
Isomer DistributionGC
     Para %45.095.095.0
     Meta %55.05.05.0
     Ortho %
Polymer, ppmASTM D-2121-84Neg.Neg.Neg.Neg.
Inhibitor, ppm TBCASTM D-459012255012
Physical Properties
Refractive Index, n25D1.541.541.521.54
Density, g cm-3 @ 25oC0.8930.8920.8840.902
Surface Tension, dynes-cm-1 @ 25oC31342932
Boiling Point, oC @ 760 mm HG168170219145
Freezing Point, oC-77-34-38-31
Volume Concentration on Polymerization
% calculated @ 25oC1212 717
Vapor Pressure, mm HG at
     40oC (104oF)44114
     80oC (176oF)3535690
   120oC (248oF)17617037368
   160oC (320oF)34132577661
Heat of Polymerization, Kcal mole-115-1715-1716-1817
Copolymerization Q & e values
     Q1.061.271.391.00
     e-0.78-0.98-0.90-0.80
Heat of Vaporization, cal/g @25oC98.2102.4
Specific Heat, cal/goC @25oC0.4130.408
Solvent Compatibility:Completely compatible with Acetone, Carbon Tetrachloride, Benzene,
N-Heptane and Ethanol.


Nothing contained herein is to be construed as a recommendation to use any product in conflict with any patent. Deltech LLC makes no warranties as to the fitness of merchantability of any product referred to, no guarantee of satisfactory results from reliance upon contained information or recommendation, and disclaims all liability for any resulting loss or damage.

tertiary-butyl Styrene (TBS)

TBS MONOMER

TBS monomer produced by Deltech LLC is a versatile substitute for styrene monomer with improved properties and fewer handling restrictions. From a performance standpoint, TBS has low volume shrinkage on polymerization, a high affinity for oils, high solvent receptivity and improved water resistance of copolymers. From an environmental standpoint, TBS has a low vapor pressure and high flash point which reduces emissions from storage or handling and reduces the flammability hazard. The low volatility of TBS reduces monomer fumes in the work place and TBS is not a listed air toxic so many environmental use requirements do not apply.

Molecular Weight: 160.26

Typical Isomer Distribution:  95% Para, 5% Meta

In unsaturated polyester resin (UPR) applications such as SMC, BMC, lay-up, spray-up, casting and injection molding, TBS is an excellent diluent because of its low vapor pressure, high flash point, low shrinkage on polymerization and reduced exotherm. Higher operating temperatures are possible resulting in formulations with reduced viscosity, faster polymerization and cycle times, and the elimination of mold scum. TBS/UPR resins result in products with improved heat distortion and improved corrosion resistance.

TBS monomer can be polymerized by any of the conventional ways of initiation and in the presence of inert materials such as fillers, dyes, solvents, resins, rubbers and plasticizers. Unlike polystyrene, the homopolymer of TBS is soluble in hydrocarbons due to its aliphatic nature. TBS can be copolymerized with other monomers while requiring minor recipe adjustments when replacing styrene monomer on a mole-for-mole substitution.

TBS is the ideal monomer for use with alkyd and drying oil resins when greater aliphatic compatibility is desired. Also, the higher flash point of TBS permits higher operating temperatures resulting in shorter reaction times. In addition to improved aliphatic compatibility, TBS provides higher molar volume and improved thermal stability when used in manufacturing hydrocarbon resins.

Typical precautions in handling TBS 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. TBS 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 TBS monomer.

Typical Monomer Values 

Chemical AnalysisTest MethodTBSPMSVTStyrene
Purity, Weight % vinylGC>95.099.299.299.7
Isomer DistributionGC
    Para %95.095.045.0
     Meta %5.05.055.0
    Ortho %
Polymer, ppmASTM D-2121-84Neg.Neg.Neg.Neg.
Inhibitor, ppm TBCASTM D-2120-8240-50251212
Physical Properties
Refractive Index, n25D1.521.541.541.54
Density, g cm-3@ 25oC (77oF)0.8840.8920.8930.902
Surface Tension, dynes-cm-1 @ 25oC29343132
Boiling Point, oC @ 760 mm HG219170168145
Freezing Point, oC-38-34-77-31
Volume Concentration on Polymerization
    % calculated @ 25oC7121217
Vapor Pressure, mm HG at
     40oC (104oF)14414
     80oC (176oF)6353590
   120oC (248oF)37170176368
   160oC (320oF)77325341661
Heat of Polymerization, Kcal mole-116-1815-1715-1717
Copolymerization Q & e values
    Q1.391.271.061.00
    e-0.90-0.98-0.78-0.80
Heat of Vaporization, cal/g @25oC98.2102.4
Specific Heat, cal/goC @25oC0.4130.408
Solvent Compatibility:Completely compatible with Acetone, Carbon Tetrachloride, Benzene,
N-Heptane and Ethanol.

Nothing contained herein is to be construed as a recommendation to use any product in conflict with any patent. Deltech LLC makes no warranties as to the fitness of merchantability of any product referred to, no guarantee of satisfactory results from reliance upon contained information or recommendation, and disclaims all liability for any resulting loss or damage.

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