Abstract
A new method was elaborated for the introduction of chromophores into the side chains of polymers by esterification of polyamidoimides containing side carboxy groups with glycidyl ethers of dyes, 4-(4-nitrophenylazo)phenol and 4-(6-nitrobenzothiazol-2-ylazo)phenol. The optimum modification conditions were found that made it possible to esterify 15, 30, 50, and 90% of the carboxy groups. The synthesized polymers possess valuable physicomechanical properties (E = 2.8–3.3 GPa, σu = 69–90 MPa, εu = 38–77%) and glass transition temperatures of 115–125 °C, depending on the degree of esterification. After chromophore orientation in the corona discharge, all the polymers demonstrate nonlinear optical properties of the second order.
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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 6, pp. 1438–1444, June, 2005.
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Goikhman, M.Y., Subbotina, L.I., Gofman, I.V. et al. Polyamidoimides with side chromophoric groups. Russ Chem Bull 54, 1481–1487 (2005). https://doi.org/10.1007/s11172-005-0431-0
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DOI: https://doi.org/10.1007/s11172-005-0431-0