CONCLUDING REMARKS AND FUTURE PERSPECTIVES

The engineering of imidic polymers is a research area in continuous development that still leads to the progress of current technologies. Aromatic-alicyclic Pis have emerged as a solution to solve classical issues of wholly aromatic ones. The advantages of this categoiy of imidic polymers arise from their improved processability, optical, and dielectric properties. All these allow manufacturing a larger assortment of products for many industries. Depending on the used processing approach one may obtain materials with adapted properties for specific applications ranging from electronics to biomedicine.

Worldwide research activities are directed toward Pis with an optimized balance between stiffness, free volume, and polarity enabling to upgrade the functionality of the devices, like light emitting diode, organic transistors, displays, or solar cells. The future of this domain relies not only on structural optimization but also on perspective of interface engineering to achieve devices with better reliability.

Despite remarkable progress in the design of Pis, there still remain certain challenges concerning the synthesis by less polluting procedures to attain “green” products. This should be seriously taken into account by researchers considering the alarming amount of wastes produced by the electronic industry. Therefore, green chemistry concepts should be more often applied in production of Pi-based products.

The relatively recent found biocompatibility of Pis must be explored more deeply when designing biomedical devices, like epidermal electronics, cardiac electrophysiological monitoring, or organic digital mechanoreceptor. Advanced procedures of physical/chemical modifications of PI surface should be researched to achieve a more stable surface functionality, which is a key factor in numerous applications.

KEYWORDS

• • PI
• • alicyclic
• • synthesis
• • processability
• • green chemistry
• • applications

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