One common practice for improving the optical properties of polymers is to incorporate sulfur either as pendant or
backbone portions into the polymer.
[23] However, such
polymers tend to contain high percentages of atoms that
limit their use. Pyun and co-workers demonstrated that
although polymers fabricated by inverse vulcanization appear
red in color in the visible range of the light spectrum, they can
be highly transmissive in the IR region, and can have
refractive indices (n) that are unusually high for polymers
(n > 1.80).[20] These properties are attributed to their very high
sulfur content. This makes such polymers superior to other
polymers for visualization in the IR region (Figure 3). It has
been further shown that, as a result of the dynamic nature of
these polymers, damage caused to the surface (e.g. scratches)
can be remedied by heating, thus restoring the desirable
transmission capabilities.
[24] Given their properties, many
opportunities exist for the use of these types of polymers in
IR-optical applications.
One common practice for improving the optical properties of polymers is to incorporate sulfur either as pendant or
backbone portions into the polymer.
[23] However, such
polymers tend to contain high percentages of atoms that
limit their use. Pyun and co-workers demonstrated that
although polymers fabricated by inverse vulcanization appear
red in color in the visible range of the light spectrum, they can
be highly transmissive in the IR region, and can have
refractive indices (n) that are unusually high for polymers
(n > 1.80).[20] These properties are attributed to their very high
sulfur content. This makes such polymers superior to other
polymers for visualization in the IR region (Figure 3). It has
been further shown that, as a result of the dynamic nature of
these polymers, damage caused to the surface (e.g. scratches)
can be remedied by heating, thus restoring the desirable
transmission capabilities.
[24] Given their properties, many
opportunities exist for the use of these types of polymers in
IR-optical applications.
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