A novel phthalonitrile monomer with low post cure temperature and short cure time

Abstract

3-(2-Aminophenoxy)-phthalonitrile was designed and synthesized. Measurements show that the monomer has higher cure reactivity and can cure at lower temperatures in a short time and with a higher conversion, giving a better thermal stability.

Crosslinking mechanisms, structure and glass transition in phthalonitrile resins: Insight from computer multiscale simulations and experiments

“…Phthalonitrile resins are formed from melt by radical polymerization reaction, accompanied by more complex reactions of triazine and phthalocyanine formation . In this paper, curing process with multiple reactions, that mimics actual chemical reaction pathways, is implemented at the mesoscale level .…”

“…In experiments the ratios between reaction rates of these reactions can be controlled by chemical structure of reactants and temperature regime (but are still unknown) . In simulations two‐stage process is implied to simulate the actual technological curing procedure.…”

“…In Ref. , the DPD method was suggested for simulation of crosslinking process of phthalonitrile monomers with specific reactions of isoindoline and triazine formation . In this paper, we generalized the scheme from refs.…”

Synthesis and properties of phthalonitrile terminated polyaryl ether nitrile containing fluorene group

“…As an important class of high performance thermosetting matrix, phthalonitrile resins exhibited many excellent properties, such as high glass transition temperature ( T g ), outstanding thermal and mechanical properties, low water absorptivity, and superior flame and chemical corrosion resistance . However, due to the high crosslinking density and high melting point, phthalonitrile resins exhibited brittleness and narrow processing window, which strongly limited its further applications.…”

Interface conjugation enhances the interface adhesion performance of carbon fiber-reinforced phthalonitrile composites by π–π stacking

“…Recently, it has attracted more attention and has been applied in aviation, aerospace, boat construction and other elds. [6][7][8][9][10] Carbon ber (C f ) is widely used as a reinforcing phase in matrix composite materials because of its high strength, high modulus, and low density, among other advantages. [11][12][13][14] Therefore, the study of the performance at the interface between the PN resin and carbon bers is a particularly important, although underappreciated, area of research.…”