Cyanate esters based on cardanol modified‐phenol‐formaldehyde resins: Syntheses and thermal characteristics

Abstract

Cardanol incorporated‐phenol‐formaldehyde novolac resins were synthesized by acid and base catalyzed reactions. The novolacs were transformed to their cyanate esters. The thermal cure characteristics of the cyanate esters depended upon the composition. The presence of cardanol proportionately facilitated the curing. The thermal characterization of the novolacs and the corresponding cured phenolic‐triazine networks indicated a dedicated a detremental effect of cardanol on the thermal stability and char residue of the resins. © 1995 John Wiley & Sons, Inc.

The effect of CTBN concentrations on the kinetic parameters of decomposition of blends of cardanol‐based epoxidized novolac resin modified with carboxyl‐terminated liquid copolymer

“…Subsequent to that, participation of the aromatic groups of cardanol at higher temperatures were delayed due to the presence of rubber indicating higher thermal stability of the blends and the extent of improvement might depend on the concentration of rubber. [25][26][27] The higher char yield of the blend systems (refer Table II) could be attributed to the presence of more cross-links present in the blend systems 24 as a result of curing which further confirmed the higher thermal stability of the blend systems.…”

Thermal decomposition behavior of carbon‐nanotube‐reinforced poly(ethylene 2,6‐naphthalate) nanocomposites

“…17 TGA thermograms of PEN/CNT nanocomposites with the CNT content at 20 C/min under nitrogen are shown in Figure 1, and their results are summarized in Table I. The TGA curves of thermal decomposition for pure PEN and PEN/CNT nanocomposites exhibited only one primary weight-loss step during thermal decomposition, which was attributed to the random scission of the PEN macromolecular chains.…”

Thermal degradation process of the cured phenolic triazine thermoset resin (Primaset® PT-30). Part I. Systematic non-isothermal kinetic analysis

“…cardanol) was introduced through copolymerization of phenol with cardanol, and subsequently using the modified novolac for cyanation. The thermal stability decreased proportional to the cardanol content and the resins exhibited poorer shelf-life [11]. PT resin is commercially available under the trade name Primaset ® PT-15, PT-30, PT-60 and PT-90, which essentially differ in their molar masses [12].…”