What is DVB chemical used for?
DVB is used in polymeric core shell nanoparticles and as a crosslinking agent. DVB may be used as a monomer for the synthesis of highly crosslinked macroporous styrene/DVB polymers. It may also be used to synthesize monodispersed poly-DVB microspheres.
What is styrene DVB?
Divinylbenzene (DVB) consists of a benzene ring bonded to two vinyl groups. It is related to styrene (vinylbenzene) by the addition of a second vinyl group. It is a colorless liquid manufactured by the thermal dehydrogenation of isomeric diethylbenzenes.
What is divinylbenzene copolymer?
Styrene-divinylbenzene sulfonated copolymer also called Dowex 50W 8X hydrogen form, strongly acidic resin, is a fine mesh spherical ion exchange resin made from a microporous styrene / divinylbenzene (DVB) co-polymer with a sulfonic acid group.
What is Polystyrene divinylbenzene?
Polystyrene-divinylbenzene copolymer (e.g. XAD-2) is a hydrophobic resin that can absorb many water-soluble organic compounds, principally by van der Waals forces and additionally by hydrophobic bonding and dipole–dipole interactions. For binding to the resin the substances must be in a hydrophobic state.
What is resin size?
Resin particles were spherical in shape the average diameter being ∼0.5 mm. The basic structure of the resin is shown in Fig. 1 and contains divinylbenzene as a cross-linking reagent.
What is the functionality of divinylbenzene?
Uses Divinylbenzene (DVB) is an extremelyversatile cross-linking agent that also improves polymer properties. it has been used to manufacture adhesives,plastics, elastomers, ceramics, biologicalmaterials, coatings, catalysts, membranes, pharmaceuticals, specialty polymers, and ion exchange resins.
What do you mean by co polymer?
A copolymer is a polymer formed when two (or more) different types of monomers are linked in the same polymer chain, as opposed to a homopolymer where only one monomer is used.
What is resin formula?
Molecular Formula. C21H25ClO5. Synonyms. Epoxy resin.
What is the density of resin?
The density of Tough Resin is 1.15 g/cm3. Tough Resin is a liquid that will harden to form an extremely tough coating.
How does P divinylbenzene make the copolymers more rigid?
Divinylbenzene forms bonds with two polystyrene chains at once and chemical cross-link occurs. Chemical cross-linking makes it more difficult for the polymer chain segments to move. Therefore, the cross-linked polymer is more rigid.
Who invented polystyrene?
Eduard Simon
In 1839, a German apothecary Eduard Simon discovered polystyrene. Although Simon was able to isolate the substance from natural resin, he did not know what he had discovered.