Desalination and Water Treatment,
Год журнала:
2022,
Номер
274, С. 150 - 158
Опубликована: Окт. 1, 2022
Gemini
cationic
surfactants
were
prepared
via
alkylation
of
4-(4-nitrobenzyl)pyridine
in
acetone
one
step
with
1,10-dibromodecane,
1,8-dibromooctane,
and
1,6-dibromohexane.The
chemical
structure
confirmed
by
using
1
H
NMR
Fouriertransform
infrared
spectroscopy.At
25°C
40°C,
surface
tension
was
estimated,
addition
properties
such
as
critical
micelle
concentration,
effectiveness
(π
CMC
),
minimum
area
(A
min
efficiency
(Pc
20
)
maximum
excess
(Γ
max
).The
results
the
thermodynamic
parameters
adsorption
micellization
evaluated
revealed
that
both
processes
are
spontaneous.It
is
clear
have
a
high
proclivity
for
at
surfaces
majority
their
solutions.The
surfactants'
antibacterial
efficacy
against
gram-negative,
gram-positive,
fungi
studied.In
this
study,
new
compounds
anti-bacterial
anti-fungal
prepared,
improved
lengthening
carbon
chain.By
increasing
hydrophobicity
spacer
length
surfactants,
specialized
features
these
increased.
RSC Advances,
Год журнала:
2020,
Номер
10(71), С. 43523 - 43532
Опубликована: Янв. 1, 2020
Two
kinds
of
double
comb-like
quaternary
ammonium
salt
polymers
P(DPA-EPI)
and
P(DBA-EPI)
with
lower
polarity
were
designed
synthesized
using
epichlorohydrin
(EPI),
di-n-propylamine
(DPA)
di-n-butylamine
(DBA)
as
raw
materials.
The
transparent
antistatic
epoxy
resin
coatings
obtained
the
two
agents,
respectively.
Because
good
hygroscopic
performance
are
easily
dissolved
in
paints
nearly
linearly
arranged
paints,
achieve
properties.
values
ρ
s
reach
5.13
×
108
Ω
sq-1
2.69
sq-1,
respectively,
a
addition
amount
only
1.0
wt%.
also
have
durability.
Compared
to
coating,
introduction
P(DBA-EPI),
thermal
stability
adhesion
do
not
change
obviously,
but
Rockwell
hardness
slightly
reduce.
