Butanediol intermediate reactive sites are its hydroxyl groups, which undergo all the typical reactions of alcohols. In addition to the condensation reactions noted above, it can be converted to simple esters, halides, dehydrated to tetrahydrofuran (THF) and dehydrogenated to gammabutyrolactone.
Adipic acid to yield polyesters with biodegradablility characterisitcs. Terephthalic acid to produce polybutylene terephthalate (PBT). Physical properties of butanediol intermediate make it useful as a plasticizer and humectant.
Butanediol is used mainly as a co-monomer in classical diol-condensation reactions. Diphenylmethane diisocyanate (MDI) yielding polyurethane foams, elastomers and adhesives.
Formulations and Solution Properties
|Vapor pressure:||<0.075mm Hg @ 24°C|
|Viscosity:||71.5 cP @ 25°C|
|Specific gravity:||1.017 @ 25°C|
Butanediol intermediate chemical structure