Technical Data Sheets | Safety Data Sheets |
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63% DVB MONOMER (DVB63)
63% DVB monomer produced by Deltech LLC is a reactive monomer composed of diviny
lbenzene 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
Typical Monomer Values
| Divinylbenzene | 62-65% | |
| Ethylvinylbenzene | 34-37% | |
| Total polymerizables (DVB & EVB) | 96.0% min. | |
| * | Low Boilers | 0.5% max. |
| Diethylbenzene | 0.5% max. | |
| ** | High Boilers (other than Naphthalene) | <0.5% max. |
| Naphthalene | 1000 ppm max. | |
| Color, Varnish Scale | 3 max. | |
| *** | Polymer | 20 PPM max. |
| Inhibitor (p-tert butyl catechol) | 1000-1200 PPM | |
| Specific Gravity 60oF/60oF) | 0.915 | |
| Flash Point, Tag Open Cup | 170oF | |
| 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.
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