- In chemistry,
bifunctionality or
difunctionality is the
presence of two
functional groups in a molecule. A
bifunctional species has the
properties of...
-
denote a
difunctional relation. This
terminology recalls the fact that, when
represented as a
logical matrix, the
columns and rows of a
difunctional relation...
-
Density (g/cm3)
Melting pt (°C)
Boiling pt (°C)
Hydroxyl compounds –
difunctional molecules Ethylene glycol 62.1 1.110 −13.4 197.4
Diethylene glycol 106...
-
fibers such as
kevlar and twaron.
These applications exploit PPD's
difunctionality, i.e. the
presence of two
amines which allow the
molecules to be strung...
-
prefix of M, D or T for monofunctional,
difunctional and
trifunctional respectively. D-230
would mean
difunctional with a
molecular weight of 230. A key...
-
monofunctional molecule possesses one
functional group, a
bifunctional (or
difunctional) two, a
trifunctional three, and so forth. In
organic chemistry (and...
-
methods exist for
preparing cycloalkanes by ring-closing
reactions of
difunctional precursors. For example,
diesters are
cyclized in the
Dieckmann condensation:...
- of step-growth polymer, in
which a
difunctional (or
higher order) acid or acyl
halide is
reacted with a
difunctional (or
higher order) alcohol. Polyesters...
-
preparation of many
heterocyclic compounds via
condensation with a
range of
difunctional electrophiles. With 2,4-pentanedione, it
condenses to give the 3,5-dimethylpyrazole...
- polymers, an
application that
takes advantage of its structure. It is
difunctional in
terms of the
amine groups and
tetra functional with
respect to the...
