| 摘要 |
Benzophenone-type polyimides having repeating groups of the formula <IMAGE> +TR <IMAGE> where Y and Y' are the same or different and are a chemical bond, -O-, -S-, <IMAGE> -CH2-, -C(CH3)2-, -CF2, -C(CF3)2- or -Si(CH3)2- and m is 0 or 1, are produced from monomers of the formula <IMAGE> II <IMAGE>
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