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The article represents a new production method based on polylactic acid for electronic devices. The originality of the proposed method is the replacement of environmentally unfriendly binders currently used in the manufacture of printed circuit boards with biodegradable polymers. We focused on materials based on renewable raw materials, which can be completely recycled to safe chemicals or reused without deep recycling in chemical or biochemical industries. Also, the proposed material biodegrades naturally into environmental substances. This approach has great potential for practical industrial uses, especially in the light of the “green chemistry” and “circular economy” concepts. Besides, the described materials are a promising base for creating new composite materials for biodegradable electronics.

One of the most popular building blocks for producing organic semiconductors is 2,7-dibromo-9H-carbazole and its derivatives. Building blocks based on 9H-carbazole are among the most expensive building blocks. The article presents new, highly effective, and “green” methods for the synthesis of 2,7-dibromo-9H-carbazole and its derivatives under microwave irradiation. The use of a flow-type microwave reactor significantly reduced the synthesis time. The methods described differ in efficiency, simplicity, performance, and a significant reduction in time compared to classical methods. The research was conducted in accordance with the principles of green chemistry.