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Novel Chromatic Transitions of Azobenzene‐Functionalized Polydiacetylene Aggregates in 1,2‐Dichlorobenzene Solution
Author(s) -
Hu Wenlong,
Hao Jiang,
Li Jingguo,
Zou Gang,
Zhang Qijin
Publication year - 2012
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201200402
Subject(s) - thermochromism , azobenzene , photochromism , alkyl , chromatic scale , chemistry , photochemistry , polymer chemistry , molecule , organic chemistry , optics , physics
Herein, we prepare three azobenzene‐functionalized polydiacetylene (PDA) aggregates in 1,2‐dichlorobenzene solution with reversible thermochromic and novel photo‐induced chromatic behavior. The influence of chemical structural variation on the chromatic transition properties of the PDAs aggregates has been explored in detail by in situ FTIR spectroscopic analyses. The links between chromatic transitions and the molecular structure of PDA aggregates has been established. The results demonstrate that suitable head group interactions and alkyl side chain lengths are both essential for the sensitivity and reversibility of the thermochromic and photochromic properties of PDAs aggregates in solution.