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Article analysis:

The article is generally reliable and trustworthy, as it provides detailed information about the synthesis of three adamantane-containing diamines, their subsequent conversion into three series of semi-alicyclic polyimides, and the characterization of these materials with respect to their thermal, mechanical and optical properties. The article also provides insights into how the substituents in the diamines impact the properties of the resulting polyimides.

However, there are some potential biases in the article that should be noted. For example, while it is mentioned that other fluorinated or alicyclic monomers have been used for the synthesis of CPIs, there is no discussion about how these materials compare to those derived from adamantane-containing diamines in terms of their properties. Additionally, while it is stated that CPIs can be achieved through structural manipulation such as introducing fluorinated segments or bulky substituents, there is no discussion about possible risks associated with these approaches or any potential drawbacks that may arise from them. Furthermore, while it is mentioned that CPIs can be used for a variety of optical and optoelectronic applications, there is no discussion about any potential limitations or challenges associated with using these materials for such applications.