Low-melting hybrid thermoplastics of ammonium polyphosphate

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Resumo

In the interaction of high-molecular ammonium polyphosphate with polyethylene polyamine, thermoplastic polymers with Tg = 46.3–50.7°C, Tsoft= 43–92°C, Tflow= 85–152°C are obtained. Thermal, heat resistance, moisture resistance, and the degree of crystallinity depending on the concentration of polyethylene polyamine are measured. The bending strength of polymers and reinforced composites is measured. A chemical scheme for the formation of a polycomplex is proposed and its structure is considered.

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Sobre autores

E. Stegno

N.N. Semenov Federal Research Center for Chemical Physics of the Russian Academy of Sciences

Email: ajushaulov@yandex.ru
Rússia, Moscow

V. Bychkov

N.N. Semenov Federal Research Center for Chemical Physics of the Russian Academy of Sciences

Email: ajushaulov@yandex.ru
Rússia, Moscow

N. Abramova

“Raduga” State Engineering Design Bureau JSC named after A.Y. Bereznyak

Email: ajushaulov@yandex.ru
Rússia, Dubna

A. Grachev

N.N. Semenov Federal Research Center for Chemical Physics of the Russian Academy of Sciences

Email: ajushaulov@yandex.ru
Rússia, Moscow

V. Lalayan

N.N. Semenov Federal Research Center for Chemical Physics of the Russian Academy of Sciences

Email: ajushaulov@yandex.ru
Rússia, Moscow

A. Shaulov

N.N. Semenov Federal Research Center for Chemical Physics of the Russian Academy of Sciences

Autor responsável pela correspondência
Email: ajushaulov@yandex.ru
Rússia, Moscow

A. Berlin

N.N. Semenov Federal Research Center for Chemical Physics of the Russian Academy of Sciences

Email: ajushaulov@yandex.ru
Rússia, Moscow

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2. Scheme 1

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3. Fig. 1. Temperature dependence of mass loss of PFA samples (1), PFA/PEPA in a mass ratio of 1:0.3 (2), PEPA (3). Synthesis conditions: T = 150 °C, holding for 1 hour.

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4. Fig. 2. Thermomechanical curves of PFA and PFA/PEPA composites in a mass ratio of 1:0.3, obtained at different synthesis temperatures. 1 – 106 °C, 2 – 120 °C, 3 –150 °C, 4 – PFA.

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5. Fig. 3. X-ray spectrum of the crystalline phase of PFA and the products of interaction of PFA/PEPA samples in different mass ratios: 1 – PFA; 2 – 1: 0.3; 3 – 1: 0.5; 4 – 1: 0.9. Synthesis conditions: T = 120 °C, holding for 0.5 h.

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6. Fig. 4. X-ray spectrum of the crystalline and amorphous phases of the PFA/PEPA interaction products. Synthesis conditions: T = 120 °C, holding for 0.5 h.

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