ABSTRACT:New diacetylene-containing polymers: poly(octa-3,5-diynylene succinate), poly(octa-3,5-diynylene adipate, and poly(octa-3,5-diynylene sebacate) were synthesized by oxidative polycoupling of the corresponding bis-acetylenes to give high molecular weight thermoplasJic film and fiber forming polymers. The polymers were thermo-and photosensitive and underwent topochemical cross-polymerization either on irradiation or heating in crystalline state to give polydiacetylene network. They can be stretched at room temperature to give strong, transparent anisotropic photosensitive materials.
New monomers, bis(3‐ethynyl)dianilides, were synthesized from 3‐ethynylaniline and different diacid dichlorides and were polymerized by oxidative polycoupling to give soluble high molecular weight film forming diacetylene‐containing polyamides. UV‐induced and thermal cross‐linking of the polymer were studied. A correlation was found between the chain flexibility and the absoprtion peaks of visible spectra of cross‐linked polymer films. Third order nonlinear optical susceptibility (χ(3)) of the polymer films was in the range of 10−10‐10−9 esu.
The monograph edited by K.Yu. Kashlyavik contains contributions of the speakers at the international conference “France and Russia: around Blaise Pascal,” held at the Department of Humanities of the Higher School of Economics — Nizhny Novgorod in 2018. This is the first collective monograph in national philology dedicated to the French writer and thinker of the 17 th century, which includes studies of Pascal’s legacy in French, English, and Russian cultures.
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