Page 187 - Handbook of Plastics Technologies

THERMOSETS

THERMOSETS 3.57

TABLE 3.55 Phenylethynyl Cross-Linked Polyimide
Composite Properties
Shear strength, psi, room temperature 5,700
177°C 4,400
48 hr in hydraulic fluid 5,410
Flexural modulus, psi, room temperature 23,000,000
177°C 22,000,000
Flexural strength, room temperature 268,000
177°C 190,000

FIGURE 3.55 Benzocyclobutene-terminated
polyimide oligomers.

FIGURE 3.56 Benzocyclobutene cross-linking cure reactions.

FIGURE 3.57 Benzocyclobutene-terminated
diketone.

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