Cardanyl acrylate

Scheme 6 Synthesis of cardanyl acrylate and poly(carda-nyl acrylate).

Figure 16 Scanning electron micrograph of poly(cardanyl acrylate) beads.

When the polymer was prepared by the suspension polymerization technique, the product was crosslinked beads of unusually uniform size (see Fig. 16 for SEM picture of the beads) with hydrophobic surface characteristics. This shows that cardanyl acrylate/methacry-late can be used as comonomers-cum-cross-linking agents in vinyl polymerizations. This further gives rise to more opportunities to prepare polymer supports for synthesis particularly for experiments in solid-state peptide synthesis. Polymer supports based on activated acrylates have recently been reported to be useful in supported organic reactions, metal ion separation, etc. [198,199]. Copolymers are expected to give better performance and, hence, coplymers of CA and CM A with methyl methacrylate (MMA), styrene (St), and acrylonitrile (AN) were prepared and characterized [196,197]. 

John, G. and Pillai, C.K.S. (1992) Self-crosslinkable monomer from cardanol crosslinked beads of poly(cardanyl acrylate) by suspension polymerization. Makromolekulare Chemie Rapid Communications, 13, 255—259. 

In another study, Nayak et al. (26) prepared CNSL-novalac resins by condensing cardanyl acrylate with p-aminobenzoic acid and formaldehyde in the presence of an acid catalyst. Thermogravimetric analysis and degradation studies on these resins have been carried out. It was observed that this resin decomposed with the removal... 

Nayak and coworkers (7, 29, 87) prepared a series of IPNs by first reacting castor oil with diisocyanate to form a prepolymer then polymerizing with methacrylate, acrylamide, and cardanyl acrylate, respectively, using ethylene glycol... 

Cardanyl acrylate, a derivate of cardanol, has been used for the preparation of a number of resins by condensing cardanyl acrylate with furfural and selective organic compdounds in the presence of acid as catalyst [284]). Cardanol has also been reacted with acetic anhydride and orthophosphoric acid to become acetylated cardanol and phosphorylated cardanol respectively [285]. 

Guru, B.N., Das, T.K.and Lenka, S. (1999) Polymers from Renewable Resources. XXVII. Studies on Synthesis, Characterization, and Thermal Properties of Resins Derived from Cardanyl Acrylate-Furfural-Organic Compounds, Polym.-Plast. Technol. Eng.,3S, 179-187... 

Das, D., Nayak, P.L., and Lenka, S. (1998) Polymers from Renewable Resources. XXV. Interpenetrating Polymer Networks Derived from Castor Oil-Isophorone Diisocyanate-Cardanyl Acrylate/Cardanyl Methacrylate Thermal and XRD Studies, Polym.-Plast. Technol Eng., 37,419-426. 

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