Abstract: Direct Interfacial Polycondensation of various aromatic diols viz. Bisphenol-A (BPA), 1,5 Naphthalene diol (1,5 N), 2,7 – Naphthalene diol (2,7 N) and 4,4’ – Dihydroxy biphenyl (4,4’ B), Hydroquinone (1,4 – dihydroxy benzene) (Q), Resorcinol (1,3–dihydroxy benzene) (R), Phenolphthalein (P) with Dimer acid (DA) was carried out using phase transfer catalyst (PTC): Cetyl Trimethyl Ammonium Bromide [CTAB]. Chloroform and water were used in immiscible phase system and acetone and water in miscible phase system. The byproduced water remained in the system in all the cases. The difference in the extent of polymerization of different aromatic diol may be due to the differences in the solubilities of the adduct with phenoxide in organic phase. A parallel study under same experimental condition was performed with Disodium salt of Dimer Acid [DSDA] to confirm the formation of Oligoester under these conditions which were confirmed by IR spectroscopy. The study of [ƞ] intrinsic viscosity was reported to confirm polyesterification.
Keywords: Interfacial Polycondensation, Aromatic Diols, Phase Transfer Catalyst (CTAB), Dimer Acid.
Title: Interfacial Polycondensation of Castor Oil Based Dimer Acid and Aromatic Diols
Author: Kanchan Khare
International Journal of Interdisciplinary Research and Innovations
ISSN 2348-1218 (print), ISSN 2348-1226 (online)
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