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Rational Design of Diphenyldiacetylene‐Based Fluorescent Materials Enabling a 365‐nm Light‐Initiated Topochemical Polymerization
Author(s) -
Zhu Mingjie,
Zhu Liangliang
Publication year - 2021
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.202100468
Subject(s) - photopolymer , polymerization , fluorescence , moiety , photochemistry , irradiation , materials science , acrylate , photoluminescence , absorption (acoustics) , polymer , chemistry , copolymer , organic chemistry , optoelectronics , composite material , physics , nuclear physics , quantum mechanics
Abstract Photopolymerization of diacetylenes usually requires stringent reaction conditions like high energy irradiation of 254‐nm light or even γ‐rays, which are generally harmful to the human body and thus mild conditions with lower energy irradiation are required. In this study, different diphenyldiacetylene (DPDA) derivatives were rationally designed followed by the investigation of their photopolymerization behavior. It was found that the para‐substituted amino groups could render the absorption band of DPDA bathochromically shifted, ensuring a 365‐nm light wavelength coverage. On this basis, an organogel system was constructed by chemically modifying cholesteryl and lipoic acid onto the DPDA moiety in aromatic solvents. Such uniform self‐assemblies further facilitated to a rather high degree of polymerization by 365‐nm irradiation. As a kind of fluorescent materials, the whole polymerization process of this system can be visualized by a photoluminescent signal.