Author/Authors :
rahmawati, putri sebelas maret university - faculty of mathematic and natural science - department of chemistry, Surakarta, Indonesia , ramelan, ari handono sebelas maret university - faculty of mathematic and natural science - department of physics, Surakarta, Indonesia , marliyana, soerya dewi sebelas maret university - faculty of mathematic and natural science - department of chemistry, Surakarta, Indonesia , sri suharty, neng sebelas maret university - faculty of mathematic and natural science - department of chemistry, Surakarta, Indonesia , wahyuningsih, sayekti sebelas maret university - faculty of mathematic and natural science - department of chemistry, Surakarta, Indonesia
Abstract :
Phenolic resin is a kind of polymer product obtained through several types of polymerisation process of natural or synthetic materials. One of natural compounds that can be applied for polymer manufacture is cardanol. By means of this research, cardanol has been successfully isolated from cashew nut shell liquid (CNSL) through liquid-liquid extraction methods while cardanol-based novolac resin was synthesised from obtained isolate and formaldehyde was synthesised by addition of citric acid as catalyst. Both isolated cardanol and cardanol-formaldehyde (CF)-based novolac resin were being confirmed by Fourier transform infrared (FTIR) and nuclear magnetic resonance (1H NMR). thermogravimetry-differential thermogravimetry (TG-DTA) analyser were undertaken to analyse thermal stability of the resin. Based on FTIR spectras and 1H NMR spectroscopy, CF-based novolac resin was successfully synthesised through polycondensation reaction. Thermal stability of isolated CF resin showed high degradation temperature of 282°C.
Keywords :
cardanol , CNSL , novolac , resin
