Synthesis And Characterization of Novel Processable Poly (EtherAzomethine)s Containing Naphthyl Moiety
Journal Title: International Journal of Engineering and Science Invention - Year 2017, Vol 6, Issue 12
Abstract
A new diamine 2, 2-Bis (4- phenoxy thiazole-2-amine) -1, 1-binaphthyl was synthesized starting from 2- naphthol and iron (III). New series of poly (ether-azomethine)s were synthesized from 2, 2-Bis (4- phenoxy thiazole-2-amine) -1, 1-binaphthyl with different compositions of dialdehydes such as isophthaldehyde and terphthaldehyde in N, N’- dimethyl acetamide (DMAc) with 5 wt% LiCl by the solution polycondensation method. Inherent viscosities of these polymers were in the range 0.30 to 0.49 dL/g. indicating formation of moderate molecular weights. These polymers exhibited good solubility in various polar aprotic solvent such as Nmethyl-2-pyrrolidone (NMP) and H2SO4etc. However some polymers showed partial solubility in DMF, DMAc and THF etc. X-Ray diffraction pattern of polymers showed amorphous nature. Thermal stability was assessed by 10% weight loss temperature and the degradation temperature of the resultant polymers falls in the ranges from 378°C to 421°C in nitrogen. The glass transition temperature was in the range of 224-248°C. The structure-property correlation among these polyazomethines were studied; in view of their potential applications as high performance polymers.
Authors and Affiliations
V. N. Kadam, S. S. Ankushrao, Y. S. Patil, P. H. Salunkhe, J. N. Mahindrakar, V. P. Ubale, N. N. Maldar, A. A. Ghanwat
Keywords
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