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Updated: Jul 25, 2025

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Layer-by-layer Synthesis and Transfer of Freestanding Conjugated Microporous Polymer Nanomembranes
Published on: December 15, 2015
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A croconic acid-derived narrow band gap conjugated microporous polymer
S Enoch1, Atul B Nipate2, Vellanki Lakshmi1
1Department of Chemistry, NITK, Surathkal, Karnataka 575 025, India. lakshmi.vellanki@nitk.edu.in.
Abstract:
Croconic acid, a novel highly electron-deficient building block, was introduced into a conjugated microporous polymer (CTPA). The CMP possesses strong donor-acceptor interactions, which resulted in near-IR absorption (red edge ∼1350 nm), a narrow bandgap (<1 eV) and high electrical conductivity upon doping (0.1 S m-1). Compared to the squaric acid congener (STPA), CTPA showed superior optical, electronic and electrical properties.

