3.5.6- Trichloro-4-chloroformyl phthalic

PAI with a higher refractive index than conventional fluorinated PI consist of chlorinated monomers. When using such a PAI type as a material for the core of an optical fiber, the selection range on the material for cladding becomes more wide. In addition, the coating performance and the adhesiveness to a substrate are improved compared to a conventional PI. Imide containing monomers based on 3,5,6-trichloro-4-chloroformyl phthalic acid anhydride have been proposed for optical applications, since the refractive index is sufficiently high. ... [Pg.465]

The monomers are obtained by the condensation of 3,5,6-trichloro-4-chloroformyl phthalic acid anhydride, c.f. Figure 14.7, with various diamines to form imide containing monomers. In addition to the monomers shown in Figure 14.7, several other diamines have been exemplified. ... [Pg.465]

Trichloro-4-chloroformyl phthalic acid anhydride 1,3-Diaminobenzene 4,4 -Diaminobiphenyl... [Pg.333]

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