This work represent synthesis of new benzoxazines polymers based on
either phenol or hydroquinone as a phenolic compounds and para
aminophenol as primary amine and paraformaldehyde.
This research do the Feasibility important technical of EOR
(Enhanced Oil Recovery ) techniques (Chemical Methods ) as
(Polymers, Surfactants, Alkaline ) in Syrian fields (Al Gbiseh/Case
Study/ ) , because of its high benefits in worldwide.
The majority of known polymer materials are electrically insulating.
But there are some of polymers are intrinsically conducting in
nature, However, it is lacking in process ability, and the scope for
manipulation of electrical and mechanical prop
erties is limited. The
method which used to solve this problem is an addition of a
conductive metal filament into a polymer filament yarn. Which can
be directly integrated into a textile, or can be knitted. So we made
a device able to produce this kind of conductive yarns which
depends on melt spinning technique but with the elimination of
necessary pressure for extrusion. And we were able to produce
samples of copper filament coated with polymeric material (low
density polyethylene).
In this work, three new compounds of benzoxazine monomers were
synthesized based on (phenol, hydroquinone, 2-naphthol) and
triethoxysilyl propyl amine (TESPA) and paraformaldehyde. (TESPA)
were used to study its effect on the thermal stability of
polybenzoxazine
resulting from the ring opening polymerization of prepared monomers.
"Korashina Anhdrite" formation in the Syrian Central Region's wells
considered as covering for "Korashina Dolimite" formation which is
a gas bearing reservoir, and consists of a succession of salt, clay,
and Shale. Much of the problems faced durin
g drilling this strata
like (High over pull/drag values, high pumps pressure, drill string
stuck), which led in some cases to stop the drilling operation, and
thus an increase in the drilling time, resulting in high final cost for
the completion of the well, salt saturated water based drilling mud
used to drill this formation but it did not completely solve the
problems.
This research aims to find out drilling mud treated with some kinds
of polymers and salts to be used to drill this formation with the
least problems.
In this study, we have designed and manufactured a simple and relatively
inexpensive solar cell, from the available materials in the local markets, where the cell is
contained of the outer body (Case), which is a plastic box on a parallel form of r
ectangles
of acrylic transparent allows the passage of light. It has resilient and high durability, and
two poles of red copper higher purity, one of them has been thermally treatment to
different temperatures (200, 300, 400°C), which turns the copper pole from carrier to semiconductor
(cuprous oxide, Cu2O), using heating device (Hot plate).
The other pole left without treatment and the electrolyte solution (Gel) has been
developed on the (Hydrogel), thus freeing electrons from the treatment plate to the
Hydrogel layer then to the clean plate (non-treatment), during shining light.
The results showed that the cell voltage proportional to the polyelectrolyte
concentration and the area of copper pole (cuprous oxide). As the experiments showed that
the temperature has an important role in transforming the metal carrier to the semiconductor,
and whenever this conversion possible whenever the pole of the light
sensitively more effective and efficient.
A chemical sensor was prepared by deposition of polypyrrole films by
chemical polymerization of pyrrole at room temperature, using hexahydrate
ferric chloride as oxidant, on a ceramic substrate placed on the bottom of the
beaker (in-situ polymeriz
ation). On the substrate two interdigitated metallic
electrodes were priory deposited by screen printing, to reduce film resistance.
These films were characterized by different methods namely FTIR, UV-Vis,
XRD.
The molecular weight (Mw, Mv) variations according to Cole - Cole
representations were studied by applying variable temperature degrees,
dynamic frequencies on a number of polymers: polypropylene (PP) isotactic,
polybutene (PB), polyamide-١٢ (PA-١٢), high density polyethylene (HDPE).
