Preparation of highly thermostable materials by modification and functionalization of bisphthalonitrile resin

Abstract : Bisphthalonitrile polymers are obtained by addition curing reaction of cyano groups upon heating phthalonitrile derivatives at elevated temperature and for an extended period of time. They have found many applications in advanced technologies such as aerospace and marine. However, their performances are limited by the following disadvantages: (1) high brittleness of the inherent network structure; (2) high melting temperature, narrow processing window, high curing temperature, low curing rate and long curing time; (3) according to the literature, the processing temperature of bisphthalonitrile resin-based composites is controlled at 500°C or less, whereas there are few studies on materials formed above 500°C; (4) studies on the functionalization of bisphthalonitrile resins are not abundant and its application range needs to be expanded. Based on the above statement, this thesis is focused on the modification and functionalization of bisphthalonitrile resins. The latter were modified by a variety of methods, resulting in improved mechanical properties. Moreover, carbon nanotubes with different morphologies and microwave absorbing materials were obtained by pyrolysing bisphthalonitrile resins with different metal iron catalysts in the range of 600 to 900°C
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Theses
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http://docnum.univ-lorraine.fr/prive/DDOC_T_2013_0265_LEI.pdf
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https://hal.univ-lorraine.fr/tel-01750720
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Submitted on : Thursday, March 29, 2018 - 12:53:14 PM
Last modification on : Friday, March 30, 2018 - 1:30:13 AM

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  • HAL Id : tel-01750720, version 1

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Ya-Jie Lei. Preparation of highly thermostable materials by modification and functionalization of bisphthalonitrile resin. Food and Nutrition. Université de Lorraine, 2013. English. ⟨NNT : 2013LORR0265⟩. ⟨tel-01750720⟩

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