
1) Vinyl compound
Found on
https://www.crosswordclues.com/clue/divinylbenzene

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. Divinylbenzene, as it is usually encountered, is a 2:1 mixture of m- and p-divinylbenzene, containing also the corresponding ethylvinylbenzene isomers. It is manufactured by the thermal dehydr...
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http://en.wikipedia.org/wiki/Divinylbenzene

(from the article `ion-exchange reaction`) in which X represents the ionic groups, which may occur at various locations on the benzene rings. In the formula as shown, the first two benzene ...
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http://www.britannica.com/eb/a-z/d/59

a clear liquid, CH, easily polymerized, used in the manufacture of rubbers, drying oils, ion-exchange resins, and polyesters. Also called
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https://www.infoplease.com/dictionary/divinylbenzene
No exact match found.