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Control Over Topochemical Photopolymerization and Photoisomerization in Azobenzene Tethered Chiral Diacetylenes Toward Tunable Molecular Packing and Conductivity (Small 35/2025)

Year: 2025

Type: article

Abstract: Chiral Optoelectronics Topochemical polymerization in self-assembled asymmetric azobenzene tethered diacetylenes generates ordered π-conjugated polydiacetylene nanofibers furnishing bright birefringent patterns. UV-light mediated E-Z photoisomerization of azobenzene leads to a dynamic order-disorder transition in the polymer with the nanofibers disassembling into nanoparticles. Such transition renders control over conductivity with E-isomer exhibiting ∼3-fold higher values than the corresponding Z analogs in solution-processed thin films. More in article number 2504051, Asish Pal and co-workers.

Source: Small

DOI: 10.1002/smll.70176

Authors: Antarlina Maulik, Vysakh C. Chandran, Ritobrata De, Debasish Nath, Jahanvi Ralhan, Soma Sil, Santanu Kumar Pal, Asish Pal

Institutions: Institute of Nano Science and Technology, Indian Institute of Science Education and Research Mohali

Language: English

Topic: Polydiacetylene-based materials and applications

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: bronze

OpenAlex ID: W4413977669

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