Trifunctional thermosetting monomer with propargyl and phthalonitrile groups
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Trifunctional thermosetting monomer with propargyl and phthalonitrile groups M. V. Yakovlev,a O. S. Morozov,b E. S. Afanaseva,b B. A. Bulgakov,b A. V. Babkin,b A. V. Kepman,b and V. V. Avdeevb aDepartment
of Materials Science, M. V. Lomonosov Moscow State University, Build. 73, 1 Leninskie Gory, 119991Moscow, Russian Federation. Fax: +7 (495) 939 0998 bDepartment of Chemistry, M. V. Lomonosov Moscow State University, Build. 3, 1 Leninskie Gory, 119991Moscow, Russian Federation. Fax: +7 (495) 932 8846. E-mail: [email protected]
A new monomer containing thermosetting groups of two types, namely, propargyl ether and phthalonitrile, in the structure of the molecule was synthesized and studied. It was found that thermal polymerization was accompanied by the degradation of the monomer with propargyl ether decomposition. This problem can be solved using catalysts based on Cu(I) favoring the polymerization at both the propargyl group and phthalonitrile fragments. The cured monomer has a non-porous structure and high thermal properties (Vicat softening temperature 395 С, T5% 451 С). The low viscosity of the melt (
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