Gelest Silicone Fluids - Gelest Inc.

▲
▲
▲
▲
Gelest, Inc.
Hydrophilic Silicones
Hydroxylic and Cationic Silicones
O(CH2CH2O)XH
CH2
CH2
CH3
CH3
CH2
CH3
Strong polar and ionic interactions can be imparted by introducing
hydroxyl groups and quaternary ammonium groups
into silicones. Hydroxyl and cationic groups maximize the
interaction of silicones with water and other aqueous solutions
allowing their use as emulsifiers and polyelectrolytes,
respectively. Both classes of materials are stable under conditions
of neutral pH and moderate temperature, but sacrifice
the broad range of inert behavior typically associated with silicones.
They are preferred materials for aqueous formulations
that demand not only the properties of silicones, but compatibility
with a wide range of other formulation components.
Important applications include anti-fogs and anti-stats.
H3C
H3C
Si O
CH3
CH3
Si O
Si O
CH3
m
CH3
Si O
Si
CH3
CH2
CH2
Si
O
n
Si
CH3
CH2NMe3 + Cl -
O
CH3
Si
CH3
CH3
Hydroxylic Silicones
(Hydroxyalkyl functional) Methylsiloxane-Dimethylsiloxane Copolymers
Viscosity Molecular Mole % Carbinol Hydroxyl Specific Price Price
Product Code cSt. Weight functional Methysiloxane class Gravity 100g 1kg
CMS-626 550-650 4500-5500 40 primary 1.09 $42.00 $252.00
0.4 equivalent of hydroxyl/kg (ca. 2 hydroxyethyleneoxypropyl groups/chain) 65% non-siloxane CAS: [68937-54-2]
CH3
CH3
m
CH3
n
CH3
CMS-222 150-200 5500-6500 5 secondary 0.976 $36.00 $216.00
0.5 equivalent of hydroxyl/kg (ca. 3 hydroxypropyleneoxypropyl groups/chain) 20% non-siloxane CAS: [68957-00-6]
Cationic Silicones
(Cationic functional)Methylsiloxane-Dimethylsiloxane Copolymers
Viscosity Molecular Mole % Benzyltrimethyl Active Specific Price Price
Product Code cSt. Weight ammonium chloride siloxane % Gravity 25g 100g
QMS-435 5000-6000 1800-2000 40 60 1.015 $64.00 $208.00
60% milky dispersion of cationic polymer in methoxypropanol - water soluble [R&D only]
Amphiphilic Silicones
Silicone fluids which are both hydrophilic and oleophilic are
said to be amphiphilic. This is in distinction to the more general
definition that considers an amphiphile to be a material which
is both hydrophilic and hydrophobic. Amphiphilic silicones
Amphiphic Silicones
have the ability to form stable water-in-oil emulsions allowing
formulation of a wide range of gels and creams. They are also
useful as surface treatments for dispersion of polar particles
in hydrocarbon media.
DodecylMethylsiloxane-HydroxypolyalkyleneoxypropylMethylsiloxane, copolymer CAS:[145686-74-4]
Viscosity Molecular Mole % Hydroxyalkyleneoxy- Active Specific Price Price
Product Code cSt. Weight propylmethylsiloxane % Gravity 100g 1kg
ABP-263 1000-4000 1800-2000 30-40 80-85 0.846 $42.00 $294.00
contains 15-20% isostearyl alcohol
(215) 547-1015 FAX: (215) 547-2484
21