The document discusses porous polymers, covering their morphology, types, properties, and synthesis methods. It highlights micro porous, macro porous, and high internal phase emulsion (HIPE) structures, their pore sizes, and applications in fields like chromatography and vaccine preparation. Additionally, it emphasizes the role of porous polymers in environmental applications, such as oil spill control.

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3. Introduction
Morphology
Types
Properties
Synthesis
Application
questions
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4. Surfaces having pores and cavities
For example: Ceramics, Foams
porous polymers have pores on the
surface
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5. Morphology
The study of shape, size, texture and
phase distribution of physical objects.
Gels, Sorbents & porous polymer
Pores and cavities on the surface,
formed by the cross linking or
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6. Types of porous polymers
Micro porous
Macro porous
High internal phase emulsion
(HIPE)
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7. Cross linking of
linear chains
Results by Co-
polymerization
Create small pores
with in3-D matrix
(gel)
Soft and compress
able at high pressure
Pore size is usually
less than 30
angstrom
Pore distribution is
uniform
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8. High degree of
cross liking Pores
are larger than gel
Total pore volume
50%
 pores are formed
independent of
polymerization
Pores ranges from
30 to 100 angstrom
Pores are larger
than gels but
irregular
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9. Pore volume
can be 70% to
90%
Micro size
pores or cavities
are formed
instead of
angstrom pores.
Ranges from 1
to 50 micro
meters
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10. Following properties will effect the
morphology of porous polymers
Phase volume
 density
surface area
 cavity size
Reactivity
Liquid uptake
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14. Micro porous polymers:
Co-polymerization of styrene &
divinylbenzene (DVB)
size of the pores depend on the
degree of cross linking
As the percentage of DVB and
degree of cross linking
decreases, size of pores
increases.
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Polymerization takes place in the
presence of “porogens”.
Thus, as polymerization proceeds, pores
are formed in the spaces where porogens
are found. Pore diameters are
typically greater than 50 Å.

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 HIPE structures are formed when
an oil, water and suitable
emulsifier are mixed with
agitation.
 The water becomes dispersed
in the oil phase and as its
concentration increases the
consistency of the mixture changes
to a thick liquid.
 This resulting substance is the high
internal phase emulsion and is
quite stable sphere like structure.

17. Catalysts:
As it is understood
porous polymers have
large surface area, which
enhance the availability
of reactivity sites. This
makes these materials
reactive
Hence if we attach the
catalysts on with the
surfaces of these
polymers,
catalysts gets more
chance to react
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18. Porous polymers provide
a culture for the
preparation of vaccines
In image the person is
holding a cancer vaccine.
Porous polymers provide
space to keep the viruses
and cells and to treat
them.
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19. Porous polymers are
used for
chromatography
materials.
As porous texture
supports the
capillary action
hence it will
support the
chromatography
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20. Porous polymers
are used to
control oil spill
as they are
powder
polymers with
ability to absorb
the oil from
water and form
a gel and float
on water
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